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Journal articles on the topic 'Satellite'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Shen, Ziyu, Wenbin Shen, Xinyu Xu, et al. "A Method for Measuring Gravitational Potential of Satellite’s Orbit Using Frequency Signal Transfer Technique between Satellites." Remote Sensing 15, no. 14 (2023): 3514. http://dx.doi.org/10.3390/rs15143514.

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We introduce an approach for the direct measurement of the gravitational potential (GP) along the trajectory of a satellite, with a specific focus on Low-Earth Orbit (LEO) satellites. A LEO satellite communicates with several Geosynchronous Equatorial Orbit (GEO) satellites via frequency signal links. The GP difference can be measured in real-time using the gravitational frequency shift approach by equipping both LEO and GEO satellites with precise atomic clocks. Since the GP at the high orbits of the GEO satellites can be precisely determined by the present gravitational field model EGM2008,

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2

Wu, Huanqin, Maocai Wang, Zhiming Song, et al. "Random Error Analysis of Launch and Injection Positions for Distributed Multi Micro-nano Satellite System." Journal of Physics: Conference Series 2640, no. 1 (2023): 012014. http://dx.doi.org/10.1088/1742-6596/2640/1/012014.

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Abstract Accurate satellite orbit calculation has always been a focus in the aerospace field. Especially, the error distribution of the orbit involving various internal and external factors in the satellite launch process has an important influence on the effectiveness of the satellite cluster. To qualitatively and quantitatively analyze the cooperative efficiency of multi-satellite clusters involving various random errors, this paper analyzes the random error sources in the launch process of micro-nano satellites and studies the distribution law of these satellite orbit position errors. Based

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3

R.Sowmya. "A STUDY ON ELECTRONIC BASED ON SATELLITE COMMUNICATION SYSTEM." Shanlax International Journal of Arts, Science and Humanities 6, S2 (2019): 60–68. https://doi.org/10.5281/zenodo.2651937.

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<em>A Communications Satellite is an artificial satellite that relays and amplifies radio tele- communications signals via a transponder, it creates a communication channel between a source transmitter and a receiver at different location on Earth. Communication satellities are ysed for television, telephone, radio, internet, and military applications. Satellite Communication has moved in many steps ahead like frequency reuse, interconnecting many ground terminals spread over the world, concept of multiple spot beam communications, Laser beam based communication through satellites and use of n

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Badis, Tarek, Elhassen Benfriha, and Jalal Eddine Benmansour. "Fuel Consumption Estimation via Bookkeeping Method for Geostationary Satellites: Simple Application." International Journal of Energetica 8, no. 2 (2023): 54. https://doi.org/10.47238/ijeca.v8i2.228.

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This work focuses on the Satellite Propulsion Subsystem (UPS), a critical aspect of satellite technology that can be supported by various propulsion types: electrical, chemical, cold gas, and nuclear propulsion. For communication satellites, chemical propulsion emerges as the most suitable option due to its simplicity and lower energy requirements. The chemical propulsion subsystem comprises oxidizer and fuel tanks, gas pressuring tanks utilizing helium. Wherein, Thrusters are employed for diverse tasks, encompassing tank sinking, orbital maneuvers (correction), attitude control, and deorbitin

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Utami, Vi Bauty Riska, Imam MPB, and Shinta Romadhona. "Analysis the impact of sun outage and satellite orbit at performance of the telkom 3S satellite communication system." JURNAL INFOTEL 13, no. 3 (2021): 134–42. http://dx.doi.org/10.20895/infotel.v13i3.626.

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Satellites of communication are located at altitude of thousands kilometers above the earth's surface, so the signal is transmitted by satellite to earth station is very susceptible to interference. Every March and September equinox or when the sun crosses the Earth's equator for several days, earth station occurs a naturally interference called by sun outage. At this time, satellite and the sun reach the closest distance because satellite's position is same direction with the sun. This interference makes the signal received by earth station weaken and even disappears due to temperature noise

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Tong, Minglei, Song Li, Xiaoxiang Wang, and Peng Wei. "Inter-Satellite Cooperative Offloading Decision and Resource Allocation in Mobile Edge Computing-Enabled Satellite–Terrestrial Networks." Sensors 23, no. 2 (2023): 668. http://dx.doi.org/10.3390/s23020668.

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Mobile edge computing (MEC)-enabled satellite–terrestrial networks (STNs) can provide task computing services for Internet of Things (IoT) devices. However, since some applications’ tasks require huge amounts of computing resources, sometimes the computing resources of a local satellite’s MEC server are insufficient, but the computing resources of neighboring satellites’ MEC servers are redundant. Therefore, we investigated inter-satellite cooperation in MEC-enabled STNs. First, we designed a system model of the MEC-enabled STN architecture, where the local satellite and the neighboring satell

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Papiya, Sumaiya Janefar, Dr Bobby Barua, and Mehnaz Hossain. "Prospects Challenges of Bangabandhu Satellite-2." International Journal of Advanced Networking and Applications 14, no. 02 (2022): 5342–52. http://dx.doi.org/10.35444/ijana.2022.14204.

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The development of the Bangabandhu Satellite-1 has changed the direction of Bangladesh's satellite communication research. Bangladesh's dream project was the Bangabandhu Satellite 1. This satellite's primary goal is to maintain effective internet and communication services in remote places. First of all, we must concentrate to the depth of satellite communication system and its process to reach any conclusion. Our main goal of the research is to recognize a feasibility review on Bangabandhu satellite-2. So, for the feasibility studies we reviewed the most promising technical parts of Bangaband

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8

Hong, Zhenqiang, Xuxing Huang, Lifeng Yang, Zhiqiang Bian, Yong Yang, and Shuang Li. "Test Method for Single Satellite’s Inter-Satellite Link Pointing and Tracking via Ground Station." Aerospace 11, no. 9 (2024): 713. http://dx.doi.org/10.3390/aerospace11090713.

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An inter-satellite link is a key technology that improves control accuracy, transmission efficiency, and autonomous capability of constellations. A satellite’s pointing and tracking abilities mainly determine the inter-satellite link’s performance, which should be validated through an in-orbit test. However, during the construction of the constellation, the distribution of satellites does not satisfy the constraints of establishing the inter-satellite link. A test method for inter-satellite link pointing and tracking is developed with respect to a single satellite. A practical mission scenario

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9

Granados-Cruz, L. G., R. G. Chávez-Moreno, J. A. Ferrer-Perez, C. Romo-Fuentes, and J. A. Ramírez-Aguilar. "Historical review of simulators for satellite position and orientation control." Journal of Physics: Conference Series 2804, no. 1 (2024): 012013. http://dx.doi.org/10.1088/1742-6596/2804/1/012013.

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Abstract In the design of satellite systems, it is essential to control the satellite’s position for various reasons, either to have correct communication with a ground station or to make connections with other satellites. In the same way, the positioning of a satellite poses a significant challenge since its behavior is non-linear; due to these issues, several test benches have been developed for the satellite’s position problem. In this review, there will be a journey from the rise of the space age to the latest advances in technology for emulating the satellite’s dynamics.

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10

Shakila Hosseinzadeh Kondori, Mustafa Helvacı. "Satellite Temperature Modeling in Geostationary Orbit Using COMSOL." Tuijin Jishu/Journal of Propulsion Technology 44, no. 5 (2023): 127–39. http://dx.doi.org/10.52783/tjjpt.v44.i5.2440.

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In our world, communication satellites are becoming more and more significant. They are costly to create, launch, operate, and maintain, thus these costs are crucial. Due to the fact that electronic and satellite components can only operate within a limited temperature range, it is crucial to understand and manage the satellite's temperature in order to maximize efficiency both before and during the mission. This study considers GEO and comparable satellites with the goal of showing satellite temperature. We ignored the entire satellite's internal structure and focused only on the external hea

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11

Wei, Hui, Jiancheng Li, Shoujian Zhang, and Xinyu Xu. "Cycle Slip Detection and Repair for Dual-Frequency LEO Satellite GPS Carrier Phase Observations with Orbit Dynamic Model Information." Remote Sensing 11, no. 11 (2019): 1273. http://dx.doi.org/10.3390/rs11111273.

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Cycle slip detection and repair are crucial for precise GPS-derived orbit determination of the low-Earth orbit (LEO) satellites. We present a new approach to detect and repair cycle slips for dual-frequency LEO satellite GPS observations. According to Newton’s equation of motion, the second-order time difference of the LEO satellite’s position (STP) is only related to the sampling interval and the satellite’s acceleration, which can be precisely obtained from the known orbit dynamic models. Then, several kinds of second-order time-difference geometry-free (STG) phase combinations, taking full

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12

Wu, Shiyu, Dongkai Yang, Yunlong Zhu, and Feng Wang. "Improved GNSS-Based Bistatic SAR Using Multi-Satellites Fusion: Analysis and Experimental Demonstration." Sensors 20, no. 24 (2020): 7119. http://dx.doi.org/10.3390/s20247119.

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The Global Navigation Satellite System (GNSS)-based Bistatic Synthetic Aperture Radar (SAR) is getting more and more attention in remote sensing for its all-weather and real-time global observation capability. Its low range resolution results from the narrow signal bandwidth limits in its development. The configuration difference caused by the illumination angle and movement direction of the different satellites makes it possible to improve resolution by multi-satellite fusion. However, this also introduces new problems with the resolution-enhancing efficiency and increased computation brought

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13

Williamson, M. "Satellites rock! [satellite radio]." IEE Review 49, no. 11 (2003): 34–37. http://dx.doi.org/10.1049/ir:20031104.

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Zhang, Derui, Hao Wang, and Qing Zhao. "Non-Cooperative Target Ranging Based on High-Orbit Single-Star Temporal–Spatial Characteristics." Applied Sciences 14, no. 23 (2024): 11232. https://doi.org/10.3390/app142311232.

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A visible light camera payload with star-sensitive functionality was installed to measure the distance between a non-cooperative target satellite and a high-orbit satellite. The rotation matrix was used to calculate the pointing vector from the center of the satellite’s star-sensitive camera axis to the target satellite. Multiple position imaging was achieved, and the moving window approach was used to establish two sets of equations relating the pointing vectors to the positions of binary satellites. To simplify the calculations, the target satellite’s eccentricity was assumed to be small (0

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15

Yun, Seok-Teak, and Seung-Hyun Kong. "Forecasting Methods of Battery Charge and Discharge Current Profile for LEO Satellites." Electronics 10, no. 23 (2021): 2999. http://dx.doi.org/10.3390/electronics10232999.

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The orbital characteristics of low Earth orbit (LEO) satellite systems prevent continuous monitoring because ground access time is limited. For this reason, the development of simulators for predicting satellite states for the entire orbit is required. Power-related prediction is one of the important LEO satellite simulations because it is directly related to the lifespan and mission of the satellite. Accurate predictions of the charge and discharge current of a power system’s battery are essential for fault management design, mission design, and expansion of LEO satellites. However, it is dif

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Nakajima, Ayano, Shigeru Ida, and Yota Ishigaki. "Orbital evolution of Saturn’s satellites due to the interaction between the moons and the massive rings." Astronomy & Astrophysics 640 (August 2020): L15. http://dx.doi.org/10.1051/0004-6361/202038743.

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Context. Saturn’s mid-sized moons (satellites) have a puzzling orbital configuration with trapping in mean-motion resonances with every-other pairs (Mimas-Tethys 4:2 and Enceladus-Dione 2:1). To reproduce their current orbital configuration on the basis of a recent model of satellite formation from a hypothetical ancient massive ring, adjacent pairs must pass first-order mean-motion resonances without being trapped. Aims. The trapping could be avoided by fast orbital migration and/or excitation of the satellite’s eccentricity caused by gravitational interactions between the satellites and the

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17

Zhao, Xiangyu, Chunjuan Zhao, Jiale Li, Yongliang Guan, Shanbo Chen, and Lei Zhang. "Research on Design, Simulation, and Experiment of Separation Mechanism for Micro-Nano Satellites." Applied Sciences 12, no. 12 (2022): 5997. http://dx.doi.org/10.3390/app12125997.

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The separation mechanism is a critical device that transports and releases satellites during launch and on-orbit. However, as satellites become smaller and more compact, the traditional belt-locking device or pyrotechnic release and separation device cannot meet the micro-nano satellite’s separation requirements. A novel separation mechanism kinematic system was designed, analyzed, and experimentally verified to achieve non-interference and non-pyrotechnic separation of the satellites from the launch vehicle while maintaining the initial separation attitude. First, an overall structural strate

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Guo, Jinyun, Guangzhe Wang, Hengyang Guo, et al. "Validating Precise Orbit Determination from Satellite-Borne GPS Data of Haiyang-2D." Remote Sensing 14, no. 10 (2022): 2477. http://dx.doi.org/10.3390/rs14102477.

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Haiyang-2D (HY-2D) is the fourth satellite in the marine dynamic satellite series established by China. It was successfully launched on 19 May 2021, marking the era of the 3-satellite network in the marine dynamic environment satellite series of China. The satellite’s precision orbit determination (POD) and validations are of great significance for ocean warning and marine altimetry missions. HY-2D is equipped with a laser reflector array (LRA), a satellite-borne Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) receiver, and a satellite-borne dual-frequency GPS receive

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Xin, Jie, Dongxia Wang, and Kai Li. "An Integrity Monitoring Method for Navigation Satellites Based on Multi-Source Observation Links." Remote Sensing 16, no. 23 (2024): 4574. https://doi.org/10.3390/rs16234574.

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The BeiDou-3 navigation satellite system (BDS-3) has officially provided positioning, navigation, and timing (PNT) services to global users since 31 July 2020. With the application of inter-satellite link technology, global integrity monitoring becomes possible. Nevertheless, the content of integrity monitoring is still limited by the communication capacity of inter-satellite links and the layout of ground monitoring stations. Low earth orbit (LEO) satellites have advantages in information-carrying rate and kinematic velocity and can be used as satellite-based monitoring stations for navigatio

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Xin, Jie, and Kai Li. "Orbit Determination Method for BDS-3 MEO Satellites Based on Multi-Source Observation Links." Remote Sensing 16, no. 19 (2024): 3702. http://dx.doi.org/10.3390/rs16193702.

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Research on augmentation and supplement systems for navigation systems has become a significant aspect in comprehensive positioning, navigation and timing (PNT) studies. The BeiDou-3 navigation satellite system (BDS-3) has constructed a dynamic inter-satellite network to gain more observation data than ground monitoring stations. Low Earth orbit (LEO) satellites have advantages in their kinematic velocity and information carrying rate and can be used as satellite-based monitoring stations for navigation satellites to make up for the distribution limitation of ground monitoring stations. This s

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Volkov, G. Yu, and D. V. Fadyushin. "DYNAMIC CONDITIONS FOR INCREASING THE STRUCTURAL STABILITY OF THE WORKING MECHANISM OF A PLANETARY-ROTARY HYDRAULIC MACHINE." Spravochnik. Inzhenernyi zhurnal, no. 283 (October 2020): 33–39. http://dx.doi.org/10.14489/hb.2020.10.pp.033-039.

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A structural feature of planetary-rotor hydraulic machines (PRHM) is the presence of floating satellites. The satellite forms kinematic pairs with the rotor and stator, which, depending on the applied forces, can change their class. In PRHM with “standouts” of satellites intended for gas media, the kinematic satellite-stator pair operates at critically high values of the pressure angle. Under the influence of the pressure force of the working medium, the satellite, taking up the radial clearance in the gearing, is shifted towards the rotor and pressed against it on both sides of the tooth, and

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Volkov, G. Yu, and D. V. Fadyushin. "DYNAMIC CONDITIONS FOR INCREASING THE STRUCTURAL STABILITY OF THE WORKING MECHANISM OF A PLANETARY-ROTARY HYDRAULIC MACHINE." Spravochnik. Inzhenernyi zhurnal, no. 283 (October 2020): 33–39. http://dx.doi.org/10.14489/hb.2020.10.pp.033-039.

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A structural feature of planetary-rotor hydraulic machines (PRHM) is the presence of floating satellites. The satellite forms kinematic pairs with the rotor and stator, which, depending on the applied forces, can change their class. In PRHM with “standouts” of satellites intended for gas media, the kinematic satellite-stator pair operates at critically high values of the pressure angle. Under the influence of the pressure force of the working medium, the satellite, taking up the radial clearance in the gearing, is shifted towards the rotor and pressed against it on both sides of the tooth, and

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Bloßfeld, Mathis, Julian Zeitlhöfler, Sergei Rudenko, and Denise Dettmering. "Observation-Based Attitude Realization for Accurate Jason Satellite Orbits and Its Impact on Geodetic and Altimetry Results." Remote Sensing 12, no. 4 (2020): 682. http://dx.doi.org/10.3390/rs12040682.

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For low Earth orbiting satellites, non-gravitational forces cause one of the largest perturbing accelerations. During a precise orbit determination (POD), the accurate modeling of the satellite-body attitude and solar panel orientation is important since the satellite’s effective cross-sectional area is directly related to the perturbing acceleration. Moreover, the position of tracking instruments that are mounted on the satellite body are affected by the satellite attitude. For satellites like Jason-1/-2/-3, attitude information is available in two forms—as a so-called nominal yaw steering mo

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Mo, Shiming, Xiaojun Jin, Chen Lin, Wei Zhang, Zhaobin Xu, and Zhonghe Jin. "Multi-Satellite Relative Navigation Scheme for Microsatellites Using Inter-Satellite Radio Frequency Measurements." Sensors 21, no. 11 (2021): 3725. http://dx.doi.org/10.3390/s21113725.

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The inter-satellite relative navigation method—based on radio frequency (RF) range and angle measurements—offers good autonomy and high precision, and has been successfully applied to two-satellite formation missions. However, two main challenges occur when this method is applied to multi-microsatellite formations: (i) the implementation difficulty of the inter-satellite RF angle measurement increases significantly as the number of satellites increases; and (ii) there is no high-precision, scalable RF measurement scheme or corresponding multi-satellite relative navigation algorithm that suppor

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Welling, D. T. "The long-term effects of space weather on satellite operations." Annales Geophysicae 28, no. 6 (2010): 1361–67. http://dx.doi.org/10.5194/angeo-28-1361-2010.

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Abstract. Integrated lifetime radiation damage may cause spacecraft to become more susceptible to operational anomalies by changing material characteristics of electronic components. This study demonstrates and quantifies the impact of these effects by examining the National Oceanic and Atmospheric Administration (NOAA) National Geophysical Data Center (NGDC) satellite anomaly database. Energetic particle data from the Geostationary Operational Environmental Satellites (GOES) is used to construct the total lifetime particle exposure a satellite has received at the epoch of an anomaly. These va

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Mitra, Manu. "Advanced Satellite Communications." Academic Journal of Engineering Studies 1, no. 1 (2020): 1–4. https://doi.org/10.1234/AES.000505.2020.

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Applications of satellite communications has broader usage; for instance, voice, video calling, internet, fax, television, and radio communications. There are abundant and various types of satellites that has applications from amplification of radio telecommunications to military applications and most importantly its application is globally, and it also allows transmission of high amount of data. In this paper various types of advanced satellites are discussed; some of them are quantum communication through satellites, metamaterials for better satellite antennas, National Aeronautics and Space

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Woo, Hyung Je, and Bjorn Buckwalter. "Geostationary Satellite Station Keeping Robustness to Loss of Ground Control." Journal of Astronomy and Space Sciences 38, no. 1 (2021): 65–82. http://dx.doi.org/10.5140/jass.2021.38.1.65.

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For the vast majority of geostationary satellites currently in orbit, station keeping activities including orbit determination and maneuver planning and execution are ground-directed and dependent on the availability of ground-based satellite control personnel and facilities. However, a requirement linked to satellite autonomy and survivability in cases of interrupted ground support is often one of the stipulated provisions on the satellite platform design. It is especially important for a geostationary military-purposed satellite to remain within its designated orbital window, in order to pro

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Tong, Minglei, Xiaoxiang Wang, Song Li, and Liang Peng. "Joint Offloading Decision and Resource Allocation in Mobile Edge Computing-Enabled Satellite-Terrestrial Network." Symmetry 14, no. 3 (2022): 564. http://dx.doi.org/10.3390/sym14030564.

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With the development of satellite-terrestrial network (STN), mobile edge computing (MEC) servers are deployed at low orbit earth (LEO) satellites to provide computing services for user devices (UEs) in areas without terrestrial network coverage. There is symmetry between satellite networks and terrestrial networks, but there is asymmetry between their resources. Computing resources of satellites’ MEC servers may not be enough. The satellite-terrestrial cooperation is promising, where a satellite migrates tasks to a base station (BS) in an adjacent area, thus utilizing computing resources of th

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Liu, Gaosai, Xinglong Jiang, Huawang Li, Zhenhua Zhang, Siyue Sun, and Guang Liang. "Adaptive Access Selection Algorithm for Large-Scale Satellite Networks Based on Dynamic Domain." Sensors 22, no. 16 (2022): 5995. http://dx.doi.org/10.3390/s22165995.

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The traditional satellite access selection algorithm, which is used in large-scale satellite networks, has some disadvantages, such as frequent link switching, high interrupt probability, and unable to adapt to a dynamic environment. According to the periodicity of the large-scale satellite network and the prior knowledge provided by acknowledgment packages, a dynamic domain-based adaptive access algorithm (DAA) is proposed in this paper. Firstly, this algorithm divides the large-scale satellite network into different domains according to the minimum elevation angle of the Earth station (ES) a

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Fankhauser, Forrest, J. Anthony Tyson, and Jacob Askari. "Satellite Optical Brightness." Astronomical Journal 166, no. 2 (2023): 59. http://dx.doi.org/10.3847/1538-3881/ace047.

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Abstract The apparent brightness of satellites is calculated as a function of satellite position as seen by a ground-based observer in darkness. Both direct illumination of the satellite by the Sun as well as indirect illumination due to reflection from the Earth are included. The reflecting properties of the satellite components and of the Earth must first be estimated (the Bidirectional Reflectance Distribution Function, or BRDF). The reflecting properties of the satellite components can be found directly using lab measurements or accurately inferred from multiple observations of a satellite

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Jing, Dan, Weidie Li, Liang Han, et al. "A Fast Satellite Selection Algorithm Based on Hierarchical Clustering and Iterative Subset Optimization." Remote Sensing 17, no. 5 (2025): 853. https://doi.org/10.3390/rs17050853.

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When calculating positions, finding the optimal satellite subset is often a compromise between real-time performance and accuracy. This paper proposes a satellite selection method based on hierarchical clustering and iterative optimization. First, hierarchical clustering groups satellites on a two-dimensional projection plane are used to obtain a basic satellite subset. The relationship between GDOP and the number of satellites involved in positioning calculations is analyzed, showing that once the number of satellites reaches a certain threshold, further increases do not significantly enhance

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Zhao, Yafei, Jiaen Zhou, Zhenrui Chen, and Xinyang Wang. "A DRL-Based Satellite Service Allocation Method in LEO Satellite Networks." Aerospace 11, no. 5 (2024): 386. http://dx.doi.org/10.3390/aerospace11050386.

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Satellite computing represents a recent computational paradigm in the development of low Earth orbit (LEO) satellites. It aims to augment the capabilities of LEO satellites beyond their current transparent relay functions by enabling real-time processing, thereby providing low-latency computational services to end users. In LEO constellations, a significant deployment of computationally capable satellites is orchestrated to offer enhanced computational resources. Challenges arise in the optimal allocation of terminal services to the most suitable satellite due to overlapping coverage among nei

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Agrusa, Harrison F., Yun Zhang, Derek C. Richardson, et al. "Direct N-body Simulations of Satellite Formation around Small Asteroids: Insights from DART’s Encounter with the Didymos System." Planetary Science Journal 5, no. 2 (2024): 54. http://dx.doi.org/10.3847/psj/ad206b.

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Abstract We explore binary asteroid formation by spin-up and rotational disruption considering the NASA DART mission's encounter with the Didymos–Dimorphos binary, which was the first small binary visited by a spacecraft. Using a suite of N-body simulations, we follow the gravitational accumulation of a satellite from meter-sized particles following a mass-shedding event from a rapidly rotating primary. The satellite’s formation is chaotic, as it undergoes a series of collisions, mergers, and close gravitational encounters with other moonlets, leading to a wide range of outcomes in terms of th

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Batthula, Venkata Jaipal Reddy, Richard S. Segall, Daniel Berleant, Hyacinthe Aboudja, and Peng-Hung Tsai. "Future Satellite Lifetime Prediction From the Historical Trend in Satellite Half-Lives." Journal of Systemics, Cybernetics and Informatics 20, no. 3 (2022): 40–45. http://dx.doi.org/10.54808/jsci.20.03.40.

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Satellite lifetime is one of the important characteristics of satellite design and construction. It’s also of practical importance to know when a satellite is about to fail, as reentry and disposal can become operational matters. Satellite lifetime estimation is not necessarily a one-time action, but can be repeated, and it depends on many factors such as orbital parameters, operational requirements, and various others. Many products today are designed with safety, quality, and service life in mind. Based on the historical trend in satellite lifetimes, the approach used here is to predict the

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Ahmad Fauzan. "Implementasi Penggunaan Sistem Pelacakan Menggunakan Antena Tracking Sistem." Jurnal Penelitian Rumpun Ilmu Teknik 1, no. 4 (2022): 128–32. http://dx.doi.org/10.55606/juprit.v1i4.1246.

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Satellites are objects in space that move around the earth according to certain orbits. Satellite communication systems can be regarded as a communication system using satellites as repeaters. Satellite communication systems can be regarded as a communication system using satellites as repeaters. The satellite functions as an active repeater where the process of amplifying signal power and frequency translation occurs on the satellite. The satellite is a repeater whose function is to amplify the signal from the earth station and retransmit it on a different frequency to the receiving earth sta

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Ильченко, Михаил Ефимович, Теодор Николаевич Нарытник, Владимир Ильич Присяжный, Сергей Владимирович Капштык та Сергей Анатольевич Матвиенко. "ПРИМЕНЕНИЕ СТАНДАРТА ШИРОКОПОЛОСНОГО ДОСТУПА IEEE 802.16 ДЛЯ ОПРЕДЕЛЕНИЯ ВЗАИМНОГО ПОЛОЖЕНИЯ КУБСАТОВ В СОСТАВЕ LEGA-SAT". Aerospace technic and technology, № 4 (14 жовтня 2018): 98–106. http://dx.doi.org/10.32620/aktt.2018.4.12.

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It is considered the possibility of optimizing the use of the power capabilities of the cube-sat platform included in the "distributed satellite" to improve the performance of its payload. To optimize the use of energy capabilities, it was proposed to disconnect the onboard equipment of the command-and-telemetric radio link in the mode of regular operation of cube-sat in the "distributed satellite". To measure the current navigation parameters of cube-satellite in the conditions of group flight in the "distributed satellite" it is proposed to use the coordinates of the cube-satellite in the sa

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Zheng, Yuzhi, Zhenwei Chen, and Guo Zhang. "Application and Evaluation of the Gaofen-3 Satellite on a Terrain Survey with InSAR Technology." Applied Sciences 10, no. 3 (2020): 806. http://dx.doi.org/10.3390/app10030806.

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The Gaofen-3 satellite is the first SAR satellite independently developed in China that achieves interferometric imaging and measurement, which improves upon Chinese civil SAR satellite data. To verify the ability of the Gaofen-3 satellite’s InSAR technology, we acquired data from Dengfeng, China, to evaluate the application and accuracy of an InSAR terrain survey. To reduce the effects introduced by data processing of Gaofen-3 data, high-accuracy InSAR image pair co-registration and phase filtering methods were adopted. Six GCPs data and 1:2000-scale DEM data were used to evaluate the elevati

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Wei, Junyong, Jiarong Han, and Suzhi Cao. "Satellite IoT Edge Intelligent Computing: A Research on Architecture." Electronics 8, no. 11 (2019): 1247. http://dx.doi.org/10.3390/electronics8111247.

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As the number of satellites continues to increase, satellites become an important part of the IoT and 5G/6G communications. How to deal with the data of the satellite Internet of Things is a problem worth considering and paying attention to. Due to the current on-board processing capability and the limitation of the inter-satellite communication rate, the data acquisition from the satellite has a higher delay and the data utilization rate is lower. In order to use the data generated by the satellite IoT more effectively, we propose a satellite IoT edge intelligent computing architecture. In th

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Meng, Fan Qin, Xu Hai Yang, Ji Kun Ou, and Pei Wei. "Method of Determining Satellite Clock Error by Using Observation Data of Satellite-Ground and Inter-Satellite." Advanced Materials Research 718-720 (July 2013): 474–79. http://dx.doi.org/10.4028/www.scientific.net/amr.718-720.474.

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We have done some simulate analysis on GPS data in this paper. The main research is method of determining satellite clock error by usining observation data of satellite-ground and inter-satellite under the condition of regional station arrangement. The research method is as follows: when the satellite in the visible area of regional observation network, we can get satellite clock error directly by satellite-ground time comparison, and predict the satellite clock error in invisible area. When the satellite in the invisible area of regional observation network, if this satellite can establish in

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Jie, Geng, Gong Jinggang, Wang Zuowei, and Lyu Nan. "Research on the Technological Development of GSO Small Satellite." MATEC Web of Conferences 288 (2019): 02003. http://dx.doi.org/10.1051/matecconf/201928802003.

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The application and technological development of geosynchronous orbit(GSO) small satellite are researched in this paper. Firstly the application field and application value of GSO small satellites are analysed. Secondly, the technology development status of foreign GSO small satellites is overviewed. Then the differences and similarities among GSO small satellite, traditional large satellite and low earth orbit(LEO) small satellite are compared, and characteristic and key technique are systematically studied. Finally, for China’s future military and civilian needs, combined with the developmen

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Tao, Yanhua, Yang Guo, Shaobo Wang, Chuanqiang Yu, and Zimo Zhu. "Satellite Selection Strategy and Method for Signals of Opportunity Navigation and Positioning with LEO Communication Satellites." Sensors 25, no. 1 (2025): 267. https://doi.org/10.3390/s25010267.

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Experts and scholars from various nations have proposed studying low Earth orbit (LEO) satellite signals as the space-based signals of opportunity (SOPs) for navigation and positioning. This method serves as a robust alternative in environments where global navigation satellite systems (GNSS) are unavailable or compromised, providing users with high-precision, anti-interference, secure, and dependable backup navigation solutions. The rapid evolution of LEO communication constellations has spurred the development of SOPs positioning technology using LEO satellites. However, this has also led to

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Ding, Huixia, Sicheng Zhu, Sachula Meng, et al. "Matching-Based Resource Allocation for Satellite–Ground Network." Sensors 22, no. 21 (2022): 8436. http://dx.doi.org/10.3390/s22218436.

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With the vigorous development of information and communication technology, mobile internet has undergone tremendous changes. How to achieve global coverage of the network has become the primary problem to be solved. GEO satellites and LEO satellites, as important components of the satellite–ground network, can offer service for hotspots or distant regions where ground-based base stations’ coverage is limited. Therefore, we build a satellite–ground network model, which transforms the satellite–ground network resource allocation problem into a matching issue between GEO satellites, LEO satellite

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Xu, Yue, Tao Dong, Jie Yin, et al. "A Fast Time Synchronization Method for Large Scale LEO Satellite Networks Based on A Bionic Algorithm." Photonics 11, no. 5 (2024): 475. http://dx.doi.org/10.3390/photonics11050475.

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A fast time synchronization method for large-scale LEO satellite networks based on a bionic algorithm is proposed. Because the inter-satellite links are continuously established and interrupted due to the relative motion of the satellites, the topology of the LEO satellite networks is time varying. Firstly, according to the ephemeris information in navigation messages, a connection table which records the connections between satellites is generated. Then, based on the connection table, the current satellite network topology is calculated and generated. Furthermore, a bionic algorithm is used t

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Nafieva, E. N., and A. V. Grechishchev. "SPACE RADAR SYSTEMS OF EARTH MONITORING." ECOLOGY ECONOMY INFORMATICS. GEOINFORMATION TECHNOLOGIES AND SPACE MONITORING 2, no. 5 (2020): 89–95. http://dx.doi.org/10.23885/2500-123x-2020-2-5-89-95.

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This article explores the relevance of radar sensing methods. The principles of its operation and the advantages of use are considered: the independence of obtaining images from weather conditions and the time of day, the possibility of wide viewing at long ranges with high resolution and the flexibility of controlling and changing radar parameters, which allows you to vary the position and size of the viewing area, resolution and forms of information. In addition, the main satellite radar systems were considered: satellites of the European Space Agency ERS-1,2 and ENVISAT; Canadian satellites

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Li, Fangchao, Zengke Li, Jingxiang Gao, and Yifei Yao. "A Fast Rotating Partition Satellite Selection Algorithm Based on Equal Distribution of Sky." Journal of Navigation 72, no. 04 (2019): 1053–69. http://dx.doi.org/10.1017/s0373463318001145.

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To achieve fast satellite selection for a multi-Global Navigation Satellite System (GNSS), thereby reducing the burden on a receiver's processing element and the cost of hardware, and improving the utilisation ratio of receiver signal channels, the relationship between the number of satellites and Geometric Dilution Of Precision (GDOP), the number of satellites selected and the computation time is analysed. A fast rotating partition algorithm for satellite selection based on equal distribution of the sky is proposed. The algorithm divides the satellite selection process into two parts: rough s

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Meng, Lingdong, Jiexian Wang, Junping Chen, Bin Wang, and Yize Zhang. "Extended Geometry and Probability Model for GNSS+ Constellation Performance Evaluation." Remote Sensing 12, no. 16 (2020): 2560. http://dx.doi.org/10.3390/rs12162560.

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We proposed an extended geometry and probability model (EGAPM) to analyze the performance of various kinds of (Global Navigation Satellite System) GNSS+ constellation design scenarios in terms of satellite visibility and dilution of precision (DOP) et al. on global and regional scales. Different from conventional methods, requiring real or simulated satellite ephemerides, this new model only uses some basic parameters of one satellite constellation. Verified by the reference values derived from precise satellite ephemerides, the accuracy of visible satellite visibility estimation using EGAPM g

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Qin, Dan, Yongjun Jia, Mingsen Lin, and Shanwei Liu. "Performance Evaluation of China’s First Ocean Dynamic Environment Satellite Constellation." Remote Sensing 15, no. 19 (2023): 4780. http://dx.doi.org/10.3390/rs15194780.

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China’s first dynamic environment satellite constellation includes the HY-2B, HY-2C, and HY-2D satellites. In this study, the along track SLA, SWH, and SSWS of this satellite constellation were evaluated. SLA parameters are evaluated using self-crossing and dual-crossing methods. The SSWS and SWH data were evaluated by comparing with NDBC buoy and other available satellites’ data. The evaluation revealed that the standard deviation of the SLA from the HY-2B/C/D satellites’ single mission crossovers was 3.29 cm, 3.51 cm, and 3.72 cm, respectively. In addition, at the dual-crossovers of the Jaso

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Huseynov, Mugabil, and Elshan Hashimov. "Imaginary Intelligence Via Satellites." Modeling Control and Information Technologies, no. 6 (November 22, 2023): 57–60. http://dx.doi.org/10.31713/mcit.2023.014.

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This article gives basic information about all types of satellites. The types of satellites reveal the functions, purposes and applications. Information is provided on the sections required to use a satellite. The features of reconnaissance satellites are characterized. Analytical factors of satellite imagery, their pros and cons were compared. The role and functions of satellite imagery in current and probable future wars are declared.

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Solíz, J., M. Quiroga, and R. Puma-Guzmán. "DESIGN OF A SPACE MISSION FOR THE ACQUISITION OFTERRESTRIAL IMAGES FOR BOLIVIA." Revista Mexicana de Astronomía y Astrofísica Serie de Conferencias 52 (October 5, 2020): 21–22. http://dx.doi.org/10.22201/ia.14052059p.2020.52.08.

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The importance of having a terrestrial observation satellite consists of the need of governments and private entities to have recent images of a specific area, for the use of cartography, illicit plantations, mining, petroleum deposits, natural disasters, etc. Therefore, having up-to-date images of the national territory should be a priority. This analysis and design of mission focuses on the design of the orbit of the satellite, studying what type of orbit is appropriate for a future Earth observation satellite. The simulation of the orbit is carried out in this work through the study of the

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Bai, Tian, Lin Kong, Hongrui Ao, and Feng Jiang. "Heat Sink Equivalent Thermal Test Method and Its Application in Low-Orbit Satellites." Applied Sciences 14, no. 10 (2024): 4123. http://dx.doi.org/10.3390/app14104123.

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In order to shorten the length of satellite thermal testing and reduce the cost of satellite development, a new method of satellite thermal testing using a heat sink to simulate space heating flow has been proposed. First, based on the characteristics of low-orbit satellites and the current research of thermal tests, the necessity of studying high-efficiency thermal test methods for satellites is expounded, and the advantages of the heat sink equivalent thermal tests compared to conventional tests are explained. Then, the principle of the heat sink equivalent thermal tests is described, the fo

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