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Journal articles on the topic 'Radar – Military applications – Evaluation'

Author: Grafiati

Published: 4 June 2021

Last updated: 16 February 2022

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1

de Castro Folgueras, Luiza, Mauro Angelo Alves, and Mirabel C. Rezende. "Electromagnetic Evaluation of Multifunctional Composites for Use in Radar Absorbing Structures." Advanced Materials Research 1135 (January 2016): 104–11. http://dx.doi.org/10.4028/www.scientific.net/amr.1135.104.

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The knowledge of how to process composite materials and combine them with radiation absorbing centers, using different components, additives and polymer matrices with suitable electromagnetic properties (dielectric constant and tangent loss), allows the production of multifunctional composites that can function as conductors or microwave absorbing materials. Thus, the purpose of this study was to process and evaluate the electromagnetic properties of multilayered multifunctional composites made with layers of glass fiber cloths or nonwoven glass fiber veils pre-impregnated with formulations ba

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Luan, Jun, and Yun Neng Yuan. "Simulation and Effectiveness Analysis of Jamming on Inverse Synthetic Aperture Radar." Advanced Materials Research 765-767 (September 2013): 2762–65. http://dx.doi.org/10.4028/www.scientific.net/amr.765-767.2762.

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nverse synthetic aperture radar (ISAR) is a kind of imaging radar with high capability. It plays an important role in military applications, such as target classification, recognition, identification and accurate weapon navigation. This paper establishes a simulation model of jamming for ISAR system based on the principle of ISAR imaging. Then, the several typical of noise modulation jamming experiments for ISAR are carried out. The simulation results are analysed through evaluating the jamming effect based on the entropy concept.

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Lyashenko, V., V. Kuznecov, O. Kipriianov, F. Yermolenko, and T. Pavliuk. "RECOMMENDATIONS ON INTEGRATED APPLICATION OF DOPPLER RADAR SYSTEMS OF EXTERNAL TRACTORY MEASUREMENTS IN THE MOBILE TESTING GROUND MEASURING AND COMPUTING COMPLEX." Наукові праці Державного науково-дослідного інституту випробувань і сертифікації озброєння та військової техніки, no. 8 (June 29, 2021): 72–79. http://dx.doi.org/10.37701/dndivsovt.8.2021.08.

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Testing ground measuring and computing complex (TGMCC) is a set of interconnected hardware and software designed to perform measurements and processing of measuring information to determine the tactical and technical characteristics of objects in different conditions of their application, objective evaluation of test results of armament and military equipment (AME). For radar measurements of trajectory parameters of moving objects, mobile and stationary radar stations of trajectory measurements are used, including Doppler radar systems of external trajectory measurements. Such radar stat

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Gerum, W., P. Malzahn, and K. Schneider. "94-GHz TWT for military radar applications." IEEE Transactions on Electron Devices 48, no. 1 (2001): 72–73. http://dx.doi.org/10.1109/16.892170.

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5

Wang, Qing, Yilong L. Lu, and Chunping P. Hou. "Evaluation of WiMAX transmissions for passive radar applications." Microwave and Optical Technology Letters 52, no. 7 (2010): 1507–9. http://dx.doi.org/10.1002/mop.25248.

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Dayo, Zaheer Ahmed, Qunsheng Cao, Yi Wang, Sandeep Pirbhulal, and Ali Hassan Sodhro. "A Compact High-Gain Coplanar Waveguide-Fed Antenna for Military RADAR Applications." International Journal of Antennas and Propagation 2020 (August 20, 2020): 1–10. http://dx.doi.org/10.1155/2020/8024101.

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This paper presents a new design of a compact, high-gain coplanar waveguide-fed antenna and proposes a multielement approach to attain enhanced characteristics. The proposed method overcomes the simulation and geometrical complexity and achieves optimal performance features. The antenna prototype is carefully designed, and simulation results have been analyzed. The proposed antenna was fabricated on a new WangLing TP-2 laminate with dimensions (0.195λ × 0.163λ × 0.0052λ) at the lowest resonance of 9.78 GHz. The results have been tested and experimentally verified. The antenna model achieved ex

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Lee, Won-Jun, and Chun-Gon Kim. "Electromagnetic Wave Absorbing Composites with a Square Patterned Conducting Polymer Layer for Wideband Characteristics." Shock and Vibration 2014 (2014): 1–5. http://dx.doi.org/10.1155/2014/318380.

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The applications of electromagnetic- (EM-) wave-absorbers are being expanded for commercial and military purposes. For military applications in particular, EM-wave-absorbers (EMWAs) could minimize Radar Cross Section (RCS) of structures, which could reduce the possibility of detection by radar. In this study, EMWA composite structure containing a square periodic patterned layer is presented. It was found that control of the pattern geometry and surface resistance induced EMWA characteristics which can create multiresonance for wideband absorption in composite structures.

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Ramya, K. "Radar Absorbing Material (RAM)." Applied Mechanics and Materials 390 (August 2013): 450–53. http://dx.doi.org/10.4028/www.scientific.net/amm.390.450.

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This paper briefly outlines the research and development activities in radar absorbing materials. Military defense scientists to the possibility of using coating materials to render aircraft or other military vehicles less visible to radar and, preferably, to control such visibility. The highly conducting surface of a metal vehicle is an excellent reflector of radar, but an absorbing layer would suppress the radar signal at the receiver station. Radar absorbing material currently in military and commercial use are typically composed of high concentrations of iron powders in a polymer matrix. T

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Ilcev, Dimov Stojce. "The development of maritime radar. Part 1: Before the Second World War." International Journal of Maritime History 32, no. 4 (2020): 996–1007. http://dx.doi.org/10.1177/0843871420977963.

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This research note identifies the precursors for development of shipborne radar for commercial and military applications. It comprises three main sections: first, the evolution of radar starting from the first practical demonstrations provided by Russian professor Aleksandar Stepanovich Popov in 1897; second, the invention of radar in eight nations; and third, early experiments with shipborne radars up to 1939.

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Zhao, C., D. Bilitza, C. Shum, S. Schaer, G. Beutler, and S. Ge. "Evaluation of IRI95 ionosphere model for radar altimeter applications." Advances in Space Research 29, no. 6 (2002): 967–73. http://dx.doi.org/10.1016/s0273-1177(02)00062-5.

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11

El Hadri, D., A. Zugari, A. Zakriti, M. El Ouahabi, and M. Taouzari. "A Compact Triple Band Antenna for Military Satellite Communication, Radar and Fifth Generation Applications." Advanced Electromagnetics 9, no. 3 (2020): 66–73. http://dx.doi.org/10.7716/aem.v9i3.1420.

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A compact triple band antenna by using etching slots technique in the radiation element is presented in this paper. The proposed antenna is designed to target three different frequencies: 7.5 GHz (military satellite communication), 9 GHz (radar applications) and 28 GHz (fifth generation applications). The fabricated prototype of the antenna has overall dimensions of 13x12.8x1.6 mm3. Measurements were carried out to validate the simulation results. The impedance bandwidths are 259 MHz (7.435-7.695 MHz), 355 MHz (8.86-9.221 MHz) and 2.67 GHz (26.79-29.433 GHz) with return loss less than -10 dB.

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Ilcev, Dimov Stojce. "The development of maritime radar. Part 2: Since 1939." International Journal of Maritime History 32, no. 4 (2020): 1008–22. http://dx.doi.org/10.1177/0843871420977964.

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This research note outlines advances in the development of shipborne radar in Britain, Germany, the US and the Soviet Union. It focuses on the inventions and innovations in electronic and radars techniques for military and commercial applications on the eve of the Second World War, during the war and in the post-war period.

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13

Hardegree, Stuart P., Steven S. Van Vactor, David H. Levinson, and Adam H. Winstral. "Evaluation of NEXRAD Radar Precipitation Products for Natural Resource Applications." Rangeland Ecology & Management 61, no. 3 (2008): 346–53. http://dx.doi.org/10.2111/07-036.1.

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14

Palo, Francesco De, Gaspare Galati, Gabriele Pavan, Christoph Wasserzier, and Kubilay Savci. "Introduction to Noise Radar and Its Waveforms." Sensors 20, no. 18 (2020): 5187. http://dx.doi.org/10.3390/s20185187.

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In the system-level design for both conventional radars and noise radars, a fundamental element is the use of waveforms suited to the particular application. In the military arena, low probability of intercept (LPI) and of exploitation (LPE) by the enemy are required, while in the civil context, the spectrum occupancy is a more and more important requirement, because of the growing request by non-radar applications; hence, a plurality of nearby radars may be obliged to transmit in the same band. All these requirements are satisfied by noise radar technology. After an overview of the main noise

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Galati, Gaspare, and Gabriele Pavan. "Noise Radar Technology as an Interference Prevention Method." Journal of Electrical and Computer Engineering 2013 (2013): 1–6. http://dx.doi.org/10.1155/2013/146986.

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In some applications, such as automotive and marine/navigation, hundreds of radars may operate in a small environment (e.g., a road complex or a strait) and in an allocated frequency band with limited width. Therefore, a compatibility problem between different radars arises that is not easily solved by time, frequency, space, or polarization diversity. The advent of fast digital signal processing and signal generation techniques makes it possible to use waveform diversity to solve this problem that will be exacerbated in the next future. Ideal waveforms for the diversity are supplied by Noise

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Wijayarathne, Dayal, Sudesh Boodoo, Paulin Coulibaly, and David Sills. "Evaluation of Radar Quantitative Precipitation Estimates (QPEs) as an Input of Hydrological Models for Hydrometeorological Applications." Journal of Hydrometeorology 21, no. 8 (2020): 1847–64. http://dx.doi.org/10.1175/jhm-d-20-0033.1.

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AbstractWeather radar provides real-time, spatially distributed precipitation estimates, whereas traditional gauge data are restricted in space. The use of radar quantitative precipitation estimates (QPEs) as an input of hydrological models for hydrometeorological applications has increased with the development of weather radar worldwide. New dual-polarization technology and algorithms are showing improvements to radar QPEs. This study evaluates radar QPEs from C-band radar at King City, Canada (WKR), and NEXRAD S-band radar at Buffalo, New York (KBUF), to verify the reliability and accuracy f

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17

S., Manasseh. "Evaluation of 1:2.1 Power Dividers for Radar Applications and Design." i-manager's Journal on Circuits and Systems 3, no. 2 (2015): 8–13. http://dx.doi.org/10.26634/jcir.3.2.3409.

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18

Seo, Bong-Chul, Witold F. Krajewski, Felipe Quintero, et al. "Comprehensive Evaluation of the IFloodS Radar Rainfall Products for Hydrologic Applications." Journal of Hydrometeorology 19, no. 11 (2018): 1793–813. http://dx.doi.org/10.1175/jhm-d-18-0080.1.

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Abstract This study describes the generation and testing of a reference rainfall product created from field campaign datasets collected during the NASA Global Precipitation Measurement (GPM) mission Ground Validation Iowa Flood Studies (IFloodS) experiment. The study evaluates ground-based radar rainfall (RR) products acquired during IFloodS in the context of building the reference rainfall product. The purpose of IFloodS was not only to attain a high-quality ground-based reference for the validation of satellite rainfall estimates but also to enhance understanding of flood-related rainfall pr

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19

Busch, Tamara L. "A Model for the Implementation of Embedded Training in an Army Radar Ground Station." Proceedings of the Human Factors Society Annual Meeting 33, no. 19 (1989): 1289–93. http://dx.doi.org/10.1177/154193128903301911.

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This paper describes a model for the implementation of embedded training (ET) which may find applications in a variety of military systems. In addition, several of the “lessons learned” during the development of this methodology are summarized. Finally, recommendations for model enhancement are discussed.

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Seo, Bong-Chul, and Witold F. Krajewski. "Scale Dependence of Radar Rainfall Uncertainty: Initial Evaluation of NEXRAD’s New Super-Resolution Data for Hydrologic Applications." Journal of Hydrometeorology 11, no. 5 (2010): 1191–98. http://dx.doi.org/10.1175/2010jhm1265.1.

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Abstract This study explores the scale effects of radar rainfall accumulation fields generated using the new super-resolution level II radar reflectivity data acquired by the Next Generation Weather Radar (NEXRAD) network of the Weather Surveillance Radar-1988 Doppler (WSR-88D) weather radars. Eleven months (May 2008–August 2009, exclusive of winter months) of high-density rain gauge network data are used to describe the uncertainty structure of radar rainfall and rain gauge representativeness with respect to five spatial scales (0.5, 1, 2, 4, and 8 km). While both uncertainties of gauge repre

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21

Chan, Sung-Il, and Chang-Woon Han. "Reliability Evaluation of COTS Integrated Circuits for Military and Space Applications." Journal of the Korean Society for Aeronautical & Space Sciences 40, no. 12 (2012): 1093–98. http://dx.doi.org/10.5139/jksas.2012.40.12.1093.

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22

Porębski, Jakub, and Krzysztof Kogut. "Performance Evaluation of the Highway Radar Occupancy Grid." Sensors 21, no. 6 (2021): 2177. http://dx.doi.org/10.3390/s21062177.

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The quality of environmental perception is crucial for automated vehicle capabilities. In order to ensure the required accuracy, the occupancy grid mapping algorithm is often utilised to fuse data from multiple sensors. This paper focuses on the radar-based occupancy grid for highway applications and describes how to measure effectively the quality of the occupancy map. The evaluation was performed using the novel grid pole-like object analysis method. The proposed assessment is versatile and can be applied without detailed ground truth information. The evaluation was tested with a simulation

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23

Qu, Yuanxin, and Bo Cong. "Tracking Ability Evaluation and Calculation of Shipborne Tracking Radar for Space Applications." Journal of Physics: Conference Series 679 (February 29, 2016): 012007. http://dx.doi.org/10.1088/1742-6596/679/1/012007.

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24

Tarchi, Dario, Michele Vespe, Ciro Gioia, Francesco Sermi, Vladimir Kyovtorov, and Giorgio Guglieri. "Low-Cost Mini Radar: Design Prototyping and Tests." Journal of Sensors 2017 (2017): 1–15. http://dx.doi.org/10.1155/2017/8029364.

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Radar systems are largely employed for surveillance of wide and remote areas; the recent advent of drones gives the opportunity to exploit radar sensors on board of unmanned aerial platforms. Nevertheless, whereas drone radars are currently available for military applications, their employment in the civilian domain is still limited. The present research focuses on design, prototyping, and testing of an agile, low-cost, mini radar system, to be carried on board of Remotely Piloted Aircraft (RPAs) or tethered aerostats. In particular, the paper faces the challenge to integrate the in-house deve

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Ha, Jang-Hoon, Sujin Lee, Jae Choi, Jongman Lee, In-Hyuck Song, and Tai-Joo Chung. "A self-setting particle-stabilized porous ceramic panel prepared from commercial cement and loaded with carbon for potential radar-absorbing applications." Processing and Application of Ceramics 12, no. 1 (2018): 86–93. http://dx.doi.org/10.2298/pac1801086h.

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Porous ceramic materials are in a current research focus because of their outstanding thermal stability, chemical stability and lightweight. Recent research has widened the range of applications to radar absorption to utilize the advantages of porous ceramic materials. There has been long-standing interest in the development of lightweight radar-absorbing materials for military applications such as camouflaging ground-based facilities against airborne radar detection. Therefore, in this study, a novel lightweight radar-absorbing material for X-band frequencies was developed using a self-settin

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26

Carolan, William J., James E. Hill, Jeffery L. Kennington, Sandra Niemi, and Stephen J. Wichmann. "An Empirical Evaluation of the KORBX® Algorithms for Military Airlift Applications." Operations Research 38, no. 2 (1990): 240–48. http://dx.doi.org/10.1287/opre.38.2.240.

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27

Sharif, Ridwana Binte, Emad H. Habib, and Mohamed ElSaadani. "Evaluation of Radar-Rainfall Products over Coastal Louisiana." Remote Sensing 12, no. 9 (2020): 1477. http://dx.doi.org/10.3390/rs12091477.

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Radar-rainfall products provide valuable information for hydro-ecological modeling and ecosystem applications, especially over coastal regions that lack adequate in-situ rainfall observations. This study evaluates two radar-based rainfall products, the Multi-Sensor Stage IV and the Multi-Radar Multi-Sensor (MRMS), over the Louisiana coastal region in the United States. Surface reference rainfall observations from two independent rain gage networks were used in the analysis. The evaluation included distribution-based comparisons between radar and gage observations at different time scales (hour

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Ciattaglia, Gianluca, Adelmo De Santis, Deivis Disha, Susanna Spinsante, Paolo Castellini, and Ennio Gambi. "Performance Evaluation of Vibrational Measurements through mmWave Automotive Radars." Remote Sensing 13, no. 1 (2020): 98. http://dx.doi.org/10.3390/rs13010098.

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Thanks to the availability of a significant amount of inexpensive commercial Frequency Modulated Continuous Wave Radar sensors, designed primarily for the automotive domain, it is interesting to understand if they can be used in alternative applications. It is well known that with a radar system it is possible to identify the micro-Doppler feature of a target, to detect the nature of the target itself (what the target is) or how it is vibrating. In fact, thanks to their high transmission frequency, large bandwidth and very short chirp signals, radars designed for automotive applications are ab

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29

Akanksha, K. "Accurate and Efficient Representation of Obstacles Using Radar Visualizer." International Journal for Research in Applied Science and Engineering Technology 9, no. VI (2021): 4429–31. http://dx.doi.org/10.22214/ijraset.2021.36107.

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Radar is a detection system that uses radio waves to determine the range, angle or velocity of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. A radar system consist of a transmitting antenna, a receiving antenna (often same antenna is used for transmitting and receiving) and a receiver and process to determine properties of the objects. In our project we are detecting the target position of the obstacles that come in our way be it in military, aircrafts, ships, clouds, etc. using MATLAB. Using MATLAB, you can: an

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Cunha, Luciana K., James A. Smith, Mary Lynn Baeck, and Witold F. Krajewski. "An Early Performance Evaluation of the NEXRAD Dual-Polarization Radar Rainfall Estimates for Urban Flood Applications." Weather and Forecasting 28, no. 6 (2013): 1478–97. http://dx.doi.org/10.1175/waf-d-13-00046.1.

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Abstract Dual-polarization radars are expected to provide better rainfall estimates than single-polarization radars because of their ability to characterize hydrometeor type. The goal of this study is to evaluate single- and dual-polarization radar rainfall fields based on two overlapping radars (Kansas City, Missouri, and Topeka, Kansas) and a dense rain gauge network in Kansas City. The study area is located at different distances from the two radars (23–72 km for Kansas City and 104–157 km for Topeka), allowing for the investigation of radar range effects. The temporal and spatial scales of

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31

Beattie, John H. "The Threat to the ‘S’ Band Marine Radar Frequency Allocation and the Necessity to Preserve It." Journal of Navigation 53, no. 2 (2000): 299–312. http://dx.doi.org/10.1017/s0373463300008791.

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There is increasing pressure from commercial interests to obtain radio bandwidth for both terrestrial and satellite radio-communication applications. Existing civil radio-navigation and military radio-location bands are now being scrutinised by these interests. This background paper is about those pressures and the factors that marine navigators need to be aware of now and will need to deal with in the future.

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Boisvert, J. B., Q. H. J. Gwyn, B. Brisco, D. J. Major, and R. J. Brown. "Evaluation of Soil Moisture Estimation Techniques and Microwave Penetration Depth for Radar Applications." Canadian Journal of Remote Sensing 21, no. 2 (1995): 110–23. http://dx.doi.org/10.1080/07038992.1995.10874606.

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33

Bollini, P., L. Chisci, A. Farina, M. Giannelli, L. Timmoneri, and G. Zappa. "QR versus IQR algorithms for adaptive signal processing: performance evaluation for radar applications." IEE Proceedings - Radar, Sonar and Navigation 143, no. 5 (1996): 328. http://dx.doi.org/10.1049/ip-rsn:19960609.

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Ha, Jang-Hoon, Sujin Lee, Byeongjin Park, Jongman Lee, and In-Hyuck Song. "Feasibility of as-prepared reticulated porous barium titanate without additional radar-absorbing material coating in potential military applications." Journal of the Australian Ceramic Society 56, no. 4 (2020): 1481–91. http://dx.doi.org/10.1007/s41779-020-00498-6.

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FRITZ, KARL E., BARBARA A. RANDALL, GREGG J. FOKKEN, et al. "HIGH-SPEED, LOW-POWER DIGITAL AND ANALOG CIRCUITS IMPLEMENTED IN IBM SiGe BiCMOS TECHNOLOGY." International Journal of High Speed Electronics and Systems 13, no. 01 (2003): 221–37. http://dx.doi.org/10.1142/s0129156403001582.

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Under the auspices of Defense Advanced Research Project Agency's Microsystems Technology Office (DARPA/MTO) Low Power Electronics Program, the Mayo Foundation Special Purpose Processor Development Group is exploring ways to reduce circuit power consumption, while maintaining or increasing functionality, for existing military systems. Applications presently being studied include all-digital radar receivers, electronic warfare receivers, and other types of digital signal processors. One of the integrated circuit technologies currently under investigation to support such military systems is the I

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Keith, Andrew, Darryl Ahner, and Nicole Curtis. "Evaluation theory and its application to military assessments." Journal of Defense Modeling and Simulation: Applications, Methodology, Technology 16, no. 4 (2019): 305–22. http://dx.doi.org/10.1177/1548512919834670.

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Evaluation theory provides a rigorous foundation for the practice of military operation assessment. Government and industry assessors have used evaluation theory to improve the effectiveness of assessment across a wide range of fields. This article focuses on the relationship between evaluation theory and military assessment. We briefly survey the major evaluation approaches with a focus on connecting the theoretical models to practical security-related applications. These evaluation approaches include expertise-oriented, program-oriented, decision-oriented, and participant-oriented models. Wi

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Martorella, Marco, Samuele Gelli, and Alessio Bacci. "Ground Moving Target Imaging via SDAP-ISAR Processing: Review and New Trends." Sensors 21, no. 7 (2021): 2391. http://dx.doi.org/10.3390/s21072391.

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Ground moving target imaging finds its main applications in both military and homeland security applications, with examples in operations of intelligence, surveillance and reconnaissance (ISR) as well as border surveillance. When such an operation is performed from the air looking down towards the ground, the clutter return may be comparable or even stronger than the target’s, making the latter hard to be detected and imaged. In order to solve this problem, multichannel radar systems are used that are able to remove the ground clutter and effectively detect and image moving targets. In this fe

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Pettit, S. J., and A. K. C. Beresford. "Emergency relief logistics: an evaluation of military, non-military and composite response models." International Journal of Logistics Research and Applications 8, no. 4 (2005): 313–31. http://dx.doi.org/10.1080/13675560500407325.

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Sivakoti, Kavya Kumari, Mamatha Basava, Rao Venkata Balaga, and Balarama Murty Sannidhi. "Design Optimization of Radar Absorbing Materials Using Particle Swarm Optimization." International Journal of Applied Metaheuristic Computing 8, no. 4 (2017): 113–32. http://dx.doi.org/10.4018/ijamc.2017100107.

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Microwave absorbers have numerous applications in the modern-day military and civil industries. This paper presents the performance of the Particle Swarm Optimization (PSO) algorithm to obtain optimal designs for multilayer microwave absorber over different frequency ranges. The goal of this optimization is to make decision about number of layers, selection of suitable combination of materials from a predefined database, thereby minimizing the overall reflection coefficient and designing a low weight electromagnetic absorber, which absorbs the maximum amount of incident electromagnetic energy.

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Kılıç, Alper, İsmail Babaoğlu, Ahmet Babalık, and Ahmet Arslan. "Through-Wall Radar Classification of Human Posture Using Convolutional Neural Networks." International Journal of Antennas and Propagation 2019 (March 31, 2019): 1–10. http://dx.doi.org/10.1155/2019/7541814.

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Through-wall detection and classification are highly desirable for surveillance, security, and military applications in areas that cannot be sensed using conventional measures. In the domain of these applications, a key challenge is an ability not only to sense the presence of individuals behind the wall but also to classify their actions and postures. Researchers have applied ultrawideband (UWB) radars to penetrate wall materials and make intelligent decisions about the contents of rooms and buildings. As a form of UWB radar, stepped frequency continuous wave (SFCW) radars have been preferred

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Kasprowicz, Grzegorz. "MTCA.4 - modular measurement and control system with sub-nanosecond time synchronization and support for RF applications." International Journal of Electronics and Telecommunications 62, no. 3 (2016): 289–92. http://dx.doi.org/10.1515/eletel-2016-0040.

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Abstract The Micro TCA platform [1] is rapidly developing modular technology for measurement and control systems. There are available versions for laboratories, military and aviation. The newest release of the standard (MTCA.4) supports high frequency RF applications like particle accelerators, radio, telecom and radar. The PERG group together with partners from Europe and Poland takes active part in development process, i.e. implementation of sub-ns [2] synchronization, event and RF distribution system over fibre networks. It enhances significantly capabilities of MTCA platform in distributed

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Horne, Dylan, Daniel J. Findley, Daniel G. Coble, Thomas J. Rickabaugh, and James B. Martin. "Evaluation of radar vehicle detection at four quadrant gate rail crossings." Journal of Rail Transport Planning & Management 6, no. 2 (2016): 149–62. http://dx.doi.org/10.1016/j.jrtpm.2016.04.001.

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Battaglia, A., M. O. Ajewole, and C. Simmer. "Evaluation of radar multiple scattering effects in Cloudsat configuration." Atmospheric Chemistry and Physics Discussions 6, no. 4 (2006): 8125–54. http://dx.doi.org/10.5194/acpd-6-8125-2006.

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Abstract. MonteCarlo simulations have been performed to evaluate the importance of multiple scattering effects in co- and cross-polar radar returns for 94GHz radars in Cloudsat and airborne configurations. Thousands of vertically structured profiles derived from some different cloud resolving models are used as a test-bed. Mie theory is used to derive the single scattering properties of the atmospheric hydrometeors. Multiple scattering effects in the cross polar channel (reflectivity enhancement) are particularly elusive, especially in airborne configuration. They can be quite consistent in sa

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Mabrok, Mussa, Zahriladha Zakaria, Nurhana Abu Hussin, and Mohamad Ariffin Mutalib. "Microwave Bandpass Filter Integrated with Notch Response for Wide-band Applications." Indonesian Journal of Electrical Engineering and Computer Science 11, no. 2 (2018): 797. http://dx.doi.org/10.11591/ijeecs.v11.i2.pp797-804.

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This paper presents the design of wide-band bandpass filter using microstrip structure at 3-6GHz with fractional bandwidth of 66.67% based upon short-circuited stubs structure of 5th degree. In order to avoid the interference from existing system that operates in the frequency band, the folded stepped impedance resonator (SIR) was introduced to generate a narrow notch band at 5.2GHz. Pin diode is employ as switching mechanism for the notch response. This design is simulated by Advance Design System (ADS) software and using Roger Duroid 4350B with a dielectric constant of 3.48, substrate thickn

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Kioumourtzis, Georgios, Christos Bouras, and Apostolos Gkamas. "Performance evaluation of ad hoc routing protocols for military communications." International Journal of Network Management 22, no. 3 (2011): 216–34. http://dx.doi.org/10.1002/nem.802.

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Lee, Doojin, George Shaker, and William Melek. "Imaging of Human Walking Behind the Obstacle Utilizing Pulsed Radar Technique in the C-Band for Military Surveillance Applications." Journal of Electrical Engineering & Technology 15, no. 3 (2020): 1431–39. http://dx.doi.org/10.1007/s42835-020-00405-w.

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Gabriele, Salvatore, Francesco Chiaravalloti, and Antonio Procopio. "Radar–rain-gauge rainfall estimation for hydrological applications in small catchments." Advances in Geosciences 44 (July 12, 2017): 61–66. http://dx.doi.org/10.5194/adgeo-44-61-2017.

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Abstract. The accurate evaluation of the precipitation's time–spatial structure is a critical step for rainfall–runoff modelling. Particularly for small catchments, the variability of rainfall can lead to mismatched results. Large errors in flow evaluation may occur during convective storms, responsible for most of the flash floods in small catchments in the Mediterranean area. During such events, we may expect large spatial and temporal variability. Therefore, using rain-gauge measurements only can be insufficient in order to adequately depict extreme rainfall events. In this work, a double-l

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Friedrich, Katja, and Martin Hagen. "Evaluation of Wind Vectors Measured by a Bistatic Doppler Radar Network." Journal of Atmospheric and Oceanic Technology 21, no. 12 (2004): 1840–54. http://dx.doi.org/10.1175/jtech-1679.1.

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Abstract By installing and linking additional receivers to a monostatic Doppler radar, several wind components can be measured and combined into a wind vector field. Such a bistatic Doppler radar network was developed in 1993 by the National Center for Atmospheric Research and has been in operation at different research departments. Since then, the accuracy of wind vectors has been investigated mainly based on theoretical examinations. Observational analysis of the accuracy has been limited to comparisons of dual-Doppler-derived wind vectors always including the monostatic Doppler radar. Inter

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Battaglia, A., M. O. Ajewole, and C. Simmer. "Evaluation of radar multiple scattering effects in Cloudsat configuration." Atmospheric Chemistry and Physics 7, no. 7 (2007): 1719–30. http://dx.doi.org/10.5194/acp-7-1719-2007.

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Abstract. MonteCarlo simulations have been performed to evaluate the importance of multiple scattering effects in co- and cross-polar radar returns for 94 GHz radars in Cloudsat and airborne configurations. Thousands of vertically structured profiles derived from some different cloud resolving models are used as a test-bed. Mie theory is used to derive the single scattering properties of the atmospheric hydrometeors. Multiple scattering effects in the co-polar channel (reflectivity enhancement) are particularly elusive, especially in airborne configuration. They can be quite consistent in sate

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Saha, Babloo, and D. Vijay Rao. "A Heuristic Methodology for Optimal Deployment of Radar Systems in a Constrained Area of Operation." Defence Science Journal 70, no. 4 (2020): 412–18. http://dx.doi.org/10.14429/dsj.70.15066.

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In emerging network-centric warfare scenarios, the location of sensors in the sensor-grid plays a dominant role in determining the effectiveness of air defence against enemy air threats. Maximising the coverage area of sensors in the sensor-grid, considering operational performance parameters, terrain features and deployability is a challenging task for military operational planners and commanders. Such optimisation problems may not be amenable to classical operations research techniques, or may require enormous computational time to arrive at the results as the decision space grows non-linear

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