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Journal articles on the topic 'FMCW'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Zhao, Hangyu, Yeping Lai, Yuhao Wang, and Hao Zhou. "High-Frequency Radar Cross Section of Ocean Surface for an FMICW Source." Journal of Marine Science and Engineering 9, no. 4 (2021): 427. http://dx.doi.org/10.3390/jmse9040427.

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The frequency-modulated interrupted continuous waveform (FMICW) has been widely used in remotely sensing sea surface states by high-frequency ground wave radar (HFGWR). However, the radar cross section model of the sea surface for this waveform has not yet been presented. Therefore, the first- and second-order cross section models of the sea surface about this waveform are derived in this study. The derivation begins with the general electric field equations. Subsequently, the FMICW source is introduced as the radar transmitted signal to obtain the FMICW-incorporated backscattered electric fie

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2

Laureti, Stefano, Marco Mercuri, David A. Hutchins, Felice Crupi, and Marco Ricci. "Modified FMCW Scheme for Improved Ultrasonic Positioning and Ranging of Unmanned Ground Vehicles at Distances < 50 mm." Sensors 22, no. 24 (2022): 9899. http://dx.doi.org/10.3390/s22249899.

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Unmanned ground vehicles (UGVs) find extensive use in various applications, including that within industrial environments. Efforts have been made to develop cheap, portable, and light-ranging/positioning systems to accurately locate their absolute/relative position and to automatically avoid potential obstacles and/or collisions with other drones. To this aim, a promising solution is the use of ultrasonic systems, which can be set up on UGVs and can potentially output a precise reconstruction of the drone’s surroundings. In this framework, a so-called frequency-modulated continuous wave (FMCW)

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3

Eum, Soung-Hyun, and Woo-Jin Oh. "High Resolution FMCW Level Gauge with Narrowband FMCW Radar." Journal of the Korean Institute of Information and Communication Engineering 16, no. 5 (2012): 899–905. http://dx.doi.org/10.6109/jkiice.2012.16.5.899.

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4

Xin, Qin, Zhihong Jiang, Pu Cheng, and Mi He. "Signal Processing for Digital Beamforming FMCW SAR." Mathematical Problems in Engineering 2014 (2014): 1–10. http://dx.doi.org/10.1155/2014/859890.

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According to the limitations of single channel Frequency Modulation Continuous Wave (FMCW) Synthetic Aperture Radar (SAR), Digital Beamforming (DBF) technology is introduced to improve system performance. Combined with multiple receive apertures, DBF FMCW SAR can obtain high resolution in low pulse repetition frequency, which can increase the processing gain and decrease the sampling frequency. The received signal model of DBF FMCW SAR is derived. The continuous antenna motion which is the main characteristic of FMCW SAR received signal is taken into account in the whole signal processing. The

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Yang, Jiewei, Tianxin Yang, Zhaoying Wang, Dongfang Jia, and Chunfeng Ge. "A Novel Method of Measuring Instantaneous Frequency of an Ultrafast Frequency Modulated Continuous-Wave Laser." Sensors 20, no. 14 (2020): 3834. http://dx.doi.org/10.3390/s20143834.

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Ultrafast linear frequency modulated continuous-wave (FMCW) lasers are a special category of CW lasers. The linear FMCW laser is the light source for many sensing applications, especially for light detection and ranging (LiDAR). However, systems for the generation of high quality linear FMCW light are limited and diverse in terms of technical approaches and mechanisms. Due to a lack of characterization methods for linear FMCW lasers, it is difficult to compare and judge the generation systems in the same category. We propose a novel scheme for measuring the mapping relationship between instant

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Huang, Tongxing, Chaoyang Zhang, Dun Lu, Qiuyu Zeng, Wenjie Fu, and Yang Yan. "Improving FMCW GPR Precision through the CZT Algorithm for Pavement Thickness Measurements." Electronics 11, no. 21 (2022): 3524. http://dx.doi.org/10.3390/electronics11213524.

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Ground Penetrating Radar (GPR) application in road surface detection has been greatly developed in the past few decades, which enables rapid and economical estimation of pavement thickness and other physical properties in non-destructive testing (NDT) and non-contact testing (NCT). In recent years, with the rapid development of microwave and millimeter-wave solid-state devices and digital signal processors, the cost of Frequency-Modulated Continuous-Wave (FMCW) radar has dropped significantly, with smaller size and lighter weight. Thereafter, FMCW GPR is considered to be applied during pavemen

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7

Pal, Surendra. "FMCW – Radar Design." IETE Journal of Research 65, no. 4 (2019): 576–77. http://dx.doi.org/10.1080/03772063.2019.1615392.

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8

Gu, Shanshan, Guangrong Xi, Lingyu Ge, et al. "Compressed Sensing for THz FMCW Radar 3D Imaging." Complexity 2021 (August 26, 2021): 1–10. http://dx.doi.org/10.1155/2021/5576782.

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A terahertz (THz) frequency-modulated continuous wave (FMCW) imaging radar system is developed for high-resolution 3D imaging recently. Aiming at the problems of long data acquisition periods and large sample sizes for the developed imaging system, an algorithm based on compressed sensing is proposed for THz FMCW radar 3D imaging in this paper. Firstly, the FMCW radar signal model is built, and the conventional range migration algorithm is introduced for THz FMCW radar imaging. Then, compressed sensing is extended for THz FMCW radar 3D imaging, and the Newton smooth L0-norm (NSL0) algorithm is

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9

Wang, Rongrong, Bingnan Wang, Maosheng Xiang, Chuang Li, Shuai Wang, and Chong Song. "Simultaneous Time-Varying Vibration and Nonlinearity Compensation for One-Period Triangular-FMCW Lidar Signal." Remote Sensing 13, no. 9 (2021): 1731. http://dx.doi.org/10.3390/rs13091731.

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Frequency modulation continuous wave (FMCW) Lidar inevitably suffers from vibration and nonlinear frequency modulation, which influences the ranging and imaging results. In this paper, we analyze the impact of vibration error coupled with nonlinearity error on ranging for FMCW Lidar, and propose a purely theoretical approach that simultaneously compensates for time-varying vibration and nonlinearity in one-period triangular FMCW (T-FMCW) signals. We first extract the localized characteristics of dechirp signals in time-frequency domain by using a second-order synchro-squeezing transform (secon

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10

Xiao, Zhenzhen, Zhengmao Wu, and Guangqiong Xia. "Broadband dual-chirp FMCW laser source based on DSB-SC modulation and cascaded FWM." Optics Express 31, no. 18 (2023): 29925. http://dx.doi.org/10.1364/oe.498896.

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Based on dual-sideband suppressed-carrier (DSB-SC) modulation and two-stage cascaded four-wave-mixing (FWM), a scheme of broadband dual-chirp frequency-modulated continuous-wave (FMCW) laser source is proposed and experimentally demonstrated. First, via a Mach-Zehnder modulator biased at its null point, an original DSB-SC FMCW signal with 4.0 GHz swept-frequency range and 0.2 GHz/μs sweep rate is generated. Next, the original DSB-SC FMCW signal is sent to a 1 km dispersion compensation fiber for implementing first-stage FWM, a dual-chirp FMCW signal with 12.0 GHz swept-frequency range and 0.6

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Kim, Bong-Seok, Youngseok Jin, Jonghun Lee, Sangdong Kim, and Ram M. Narayanan. "Super-Resolution Angle Estimation Algorithm using Low Complexity MUSIC-Based RELAX for MIMO FMCW Radar." Journal of Electromagnetic Engineering and Science 25, no. 1 (2025): 41–53. https://doi.org/10.26866/jees.2025.1.r.277.

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A novel super-resolution angle estimation algorithm using low complexity-multiple signal classification (LC-MUSIC)-based relaxation (RELAX) for multiple-input multiple-output (MIMO) frequency-modulated continuous-wave (FMCW) radar is proposed in this paper. FMCW radar is widely used to estimate target location information in various fields, including autonomous driving, defense, and robotics. However, FMCW radar struggles to provide high-resolution direction of arrival (DOA) data. To obtain precise target positions, especially for multiple targets, FMCW radar with high-resolution DOA capabilit

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12

Wu, Zibo, Yue Song, Jishun Liu, et al. "Advancements in Key Parameters of Frequency-Modulated Continuous-Wave Light Detection and Ranging: A Research Review." Applied Sciences 14, no. 17 (2024): 7810. http://dx.doi.org/10.3390/app14177810.

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As LiDAR technology progressively advances, the capability of radar in detecting targets has become increasingly vital across diverse domains, including industrial, military, and automotive sectors. Frequency-modulated continuous-wave (FMCW) LiDAR in particular has garnered substantial interest due to its efficient direct velocity measurement and excellent anti-interference characteristics. It is widely recognized for its significant potential within radar technology. This study begins by elucidating the operational mechanism of FMCW LiDAR and delves into its basic principles. It discuss, in d

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Park, Kyungeun, Jeongpyo Lee, and Youngok Kim. "Deep Learning-Based Indoor Two-Dimensional Localization Scheme Using a Frequency-Modulated Continuous Wave Radar." Electronics 10, no. 17 (2021): 2166. http://dx.doi.org/10.3390/electronics10172166.

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In this paper, we propose a deep learning-based indoor two-dimensional (2D) localization scheme using a 24 GHz frequency-modulated continuous wave (FMCW) radar. In the proposed scheme, deep neural network and convolutional neural network (CNN) models that use different numbers of FMCW radars were employed to overcome the limitations of the conventional 2D localization scheme that is based on multilateration methods. The performance of the proposed scheme was evaluated experimentally and compared with the conventional scheme under the same conditions. According to the results, the 2D location o

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Abdul Rahman, I., M. I. Mohd Lazim, Mohammad S., Soo Peng K., and Mohd Asri M.A. "Storage stability assessment and quality performance of fermented mature coconut water beverage." Food Research 6, Supplementary 2 (2022): 43–48. http://dx.doi.org/10.26656/fr.2017.6(s2).002.

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Nutritional enhancement of mature coconut water was developed using mixed culture fermentation of Lactobacillus acidophilus and Lactobacillus brevis. The fermented mature coconut water (FMCW) was subsequently formulated to produce a palatable fermented beverage. For the FMCW to be considered safe for consumption, a storage study with a duration of 12 months was done. Prior to storage, the formulated FMCW was pasteurized at 90°C for 30 mins and allowed to cool to room temperature. The formulated FMCW was then stored at two different storage conditions of 4°C and approximately 24°C (refrigerator

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15

Kahlert, Moritz, Tai Fei, Yuming Wang, Claas Tebruegge, and Markus Gardill. "Unified Model and Survey on Modulation Schemes for Next-Generation Automotive Radar Systems." Remote Sensing 17, no. 8 (2025): 1355. https://doi.org/10.3390/rs17081355.

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Commercial automotive radar systems for advanced driver assistance systems (ADASs) have relied on frequency-modulated continuous wave (FMCW) waveforms for years due to their low-cost hardware, simple signal processing, and established academic and industrial expertise. However, FMCW systems face several challenges, including limited unambiguous velocity, restricted multiplexing of transmit signals, and susceptibility to interference. This work introduces a unified automotive radar signal model and reviews the alternative modulation schemes such as phase-coded frequency-modulated continuous wav

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Bhutani, Akanksha, Sören Marahrens, Michael Gehringer, Benjamin Göttel, Mario Pauli, and Thomas Zwick. "The Role of Millimeter-Waves in the Distance Measurement Accuracy of an FMCW Radar Sensor." Sensors 19, no. 18 (2019): 3938. http://dx.doi.org/10.3390/s19183938.

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High-accuracy, short-range distance measurement is required in a variety of industrial applications e.g., positioning of robots in a fully automated production process, level measurement of liquids in small containers. An FMCW radar sensor is suitable for this purpose, since many of these applications involve harsh environments. Due to the progress in the field of semiconductor technology, FMCW radar sensors operating in different millimeter-wave frequency bands are available today. An important question in this context, which has not been investigated so far is how does a millimeter-wave freq

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Stove, A. G. "Linear FMCW radar techniques." IEE Proceedings F Radar and Signal Processing 139, no. 5 (1992): 343. http://dx.doi.org/10.1049/ip-f-2.1992.0048.

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18

Chen, Zhe, Debin Hou, Ji-Xin Chen, et al. "A K-Band FMCW Frequency Synthesizer Using Q-Boosted Switched Inductor VCO in SiGe BiCMOS for 77 GHz Radar Applications." Electronics 9, no. 11 (2020): 1933. http://dx.doi.org/10.3390/electronics9111933.

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In this article, a fractional-N phase-locked loop (PLL) with integrated chirp generation circuit block for a 76~81 GHz frequency-modulated continuous-wave (FMCW) radar system is presented. Thanks to the switched inductor voltage-controlled oscillator (VCO) topology, the linearity, phase noise, chirp bandwidth, and chirp rate of the FMCW synthesizer can be optimized for the short-range radar (SRR) and long-range radar (LRR) applications, with switch at ON/OFF states, respectively, according to different requirements and concerns. In this way, the proposed FMCW synthesizer shows improved phase n

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19

Wang, Dingyang, Sungwon Yoo, and Sung Ho Cho. "Experimental Comparison of IR-UWB Radar and FMCW Radar for Vital Signs." Sensors 20, no. 22 (2020): 6695. http://dx.doi.org/10.3390/s20226695.

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In this paper, we compare the performances of impulse radio ultra-wideband (IR-UWB) and frequency modulation continuous wave (FMCW) radars in measuring noncontact vital signs such as respiration rate and heart rate. These two type radars have been widely used in various fields and have shown their applicability to extract vital signs in noncontact ways. IR-UWB radar can extract vital signs using distance information. On the other hand, FMCW radar requires phase information to estimate vital signs, and the result can be enhanced with Multi-input Multi-output (MIMO) antenna topologies. By using

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20

Li, Yingchun, Qi Long, Zhongjie Wu, and Zhiquan Zhou. "Low-Complexity Joint 3D Super-Resolution Estimation of Range Velocity and Angle of Multi-Targets Based on FMCW Radar." Sensors 22, no. 17 (2022): 6474. http://dx.doi.org/10.3390/s22176474.

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Multi-dimensional parameters joint estimation of multi-targets is introduced to implement super-resolution sensing in range, velocity, azimuth angle, and elevation angle for frequency-modulated continuous waveform (FMCW) radar systems. In this paper, a low complexity joint 3D super-resolution estimation of range, velocity, and angle of multi-targets is proposed for an FMCW radar with a uniform linear array. The proposed method firstly constructs the size-reduced 3D matrix in the frequency domain for the system model of an FMCW radar system. Secondly, the size-reduced 3D matrix is established,

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Pratiwi, Hana, Mujib R. Hidayat, A. A. Pramudita, and Fiky Y. Suratman. "Improved FMCW Radar System for Multi-Target Detection of Human Respiration Vital Sign." Jurnal Elektronika dan Telekomunikasi 19, no. 2 (2019): 38. http://dx.doi.org/10.14203/jet.v19.38-44.

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Frequency Modulated Continuous Wave (FMCW) radar system has been developed and applied for various needs. Based on the conventional FMCW radar concept, a large bandwidth is needed to detect small displacements in the chest wall or abdomen related with respiratory activity. To overcome the need for large bandwidths in detecting vital respiratory signs, several improvements to the FMCW system are proposed in this paper. The phase-detection concept has been elaborated in improving the capability of FMCW to detect the small displacement. In developing multi-target detection capability, range detec

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Park, Huijea, Seungsu Chung, Jaehyun Park, and Yang Huang. "High-Resolution Localization Using Distributed MIMO FMCW Radars." Sensors 25, no. 12 (2025): 3579. https://doi.org/10.3390/s25123579.

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Due to its fast processing time and robustness against harsh environmental conditions, the frequency modulated continuous waveform (FMCW) multiple-input multiple-output (MIMO) radar is widely used for target localization. For high-accuracy localization, the two-dimensional multiple signal classification (2D MUSIC) algorithm can be applied to signals received by a single FMCW MIMO radar, achieving high-resolution positioning performance. To further enhance estimation accuracy, received signals or MUSIC spectra from multiple FMCW MIMO radars are often collected at a data fusion center and proces

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Sun, Liang, Xinguang Zhou, Haohao Zhao, et al. "Broadband High-Linear FMCW Light Source Based on Spectral Stitching." Photonics 11, no. 5 (2024): 477. http://dx.doi.org/10.3390/photonics11050477.

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The key to realizing a high-performance frequency-modulated continuous wave (FMCW) laser frequency-sweeping light source is how to extend the frequency-swept bandwidth and eliminate the effect of nonlinearity. To solve these issues, this paper designs a broadband high-linear FMCW frequency-sweeping light source system based on the combination of fixed temperature control and digital optoelectronic phase-locked loop (PLL), which controls the temperatures of the two lasers separately and attempts to achieve the coarse spectral stitching based on a time-division multiplexing scheme. Furthermore,

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Lee, Theng Wei, and Wan Young Chung. "Interrogation Signal Generation for SAW Temperature Sensor." Advanced Materials Research 694-697 (May 2013): 1089–92. http://dx.doi.org/10.4028/www.scientific.net/amr.694-697.1089.

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This paper presents the method to generate frequency modulated continuous wave (FMCW) interrogation signal by using a phase lock loop (PLL) transmitter and NI ELVIS development board. The FMCW interrogation signal can be used for measuring temperature from a surface acoustic wave (SAW) sensor. The development of the PLL transmitter is discussed. The Arbitrary Waveform Generator of NI ELVIS is utilized for generating a linear frequency sweep reference signal, which will be used as a stable input signal for the transmitter. A MATLAB simulation using a pulse compression technique is performed to

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Cha, Kyuho, Sooyoung Oh, Hayoung Hong, Hongsoo Park, and Sun K. Hong. "Detection of Electronic Devices Using FMCW Nonlinear Radar." Sensors 22, no. 16 (2022): 6086. http://dx.doi.org/10.3390/s22166086.

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Nonlinear radars can be utilized to detect electronic devices, which are difficult to detect with conventional radars due to their small radar cross sections (RCS). Since the receiver in a nonlinear radar is designed to only receive harmonic or intermodulated echoes from electronic devices, it is able to separate electronic devices from non-electronic scatters (clutter) by rejecting their echoes at fundamental frequencies. This paper presents a harmonic-based nonlinear radar scheme utilizing frequency-modulated continuous-wave (FMCW) signals for the detection of various electronic devices at s

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Almeida, Filipe, Andreia Gameiro, Jorge Correia, and Fernando Ferreira. "Histone Deacetylase Inhibitors and Microtubule Inhibitors Induce Apoptosis in Feline Luminal Mammary Carcinoma Cells." Animals 11, no. 2 (2021): 502. http://dx.doi.org/10.3390/ani11020502.

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Feline mammary carcinoma (FMC) is the third most common type of neoplasia in cats, sharing similar epidemiological features with human breast cancer. In humans, histone deacetylases (HDACs) play an important role in the regulation of gene expression, with HDAC inhibitors (HDACis) disrupting gene expression and leading to cell death. In parallel, microtubules inhibitors (MTIs) interfere with the polymerization of microtubules, leading to cell cycle arrest and apoptosis. Although HDACis and MTIs are used in human cancer patients, in cats, data is scarce. In this study, we evaluated the antitumor

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Caffa, Mattia, Francesco Biletta, and Riccardo Maggiora. "Binary-Phase vs. Frequency Modulated Radar Measured Performances for Automotive Applications." Sensors 23, no. 11 (2023): 5271. http://dx.doi.org/10.3390/s23115271.

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Radars have been widely deployed in cars in recent years, for advanced driving assistance systems. The most popular and studied modulated waveform for automotive radar is the frequency-modulated continuous wave (FMCW), due to FMCW radar technology’s ease of implementation and low power consumption. However, FMCW radars have several limitations, such as low interference resilience, range-Doppler coupling, limited maximum velocity with time-division multiplexing (TDM), and high-range sidelobes that reduce high-contrast resolution (HCR). These issues can be tackled by adopting other modulated wav

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Zhao, Shuang, and Lei Chen. "Research on the Single Target Recognition of Car Collision Avoidance Radar Based on the FMCW Technology." Advanced Materials Research 1046 (October 2014): 293–96. http://dx.doi.org/10.4028/www.scientific.net/amr.1046.293.

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The signal processing algorithm mainly for the FMCW automotive collision avoidance radar is studied in this paper. Through discussing the FMCW signal processing works with two-dimensional FFT algorithm, we use CZT transform to refine the velocity spectrum so as to accurately extract the velocity of the target.

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Wang, Rongrong, Bingnan Wang, Yachao Wang, Wei Li, Zhongbin Wang, and Maosheng Xiang. "Time-Varying Vibration Compensation Based on Segmented Interference for Triangular FMCW LiDAR Signals." Remote Sensing 13, no. 19 (2021): 3803. http://dx.doi.org/10.3390/rs13193803.

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Frequency modulation continuous wave (FMCW) light detection and ranging (LiDAR) 3D imaging system may suffer from time-varying vibrations which will affect the accuracy of ranging and imaging of a target. The system uses only a single-period FMCW LiDAR signal to measure the range of each spot; however, traditional methods may not work well to compensate for the time-varying vibrations in a single period because they generally assume the vibration velocity is constant. To solve this problem, we propose a time-varying vibration compensation method based on segmented interference. We first derive

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Ma, Yue, Weimin Huang, and Eric W. Gill. "Bistatic High Frequency Radar Ocean Surface Cross Section for an FMCW Source with an Antenna on a Floating Platform." International Journal of Antennas and Propagation 2016 (2016): 1–9. http://dx.doi.org/10.1155/2016/8675964.

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The first- and second-order bistatic high frequency radar cross sections of the ocean surface with an antenna on a floating platform are derived for a frequency-modulated continuous wave (FMCW) source. Based on previous work, the derivation begins with the general bistatic electric field in the frequency domain for the case of a floating antenna. Demodulation and range transformation are used to obtain the range information, distinguishing the process from that used for a pulsed radar. After Fourier-transforming the autocorrelation and comparing the result with the radar range equation, the ra

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Yang, Lewei. "Real-time gesture-based control of UAVs using multimodal fusion of FMCW radar and vision." Journal of Physics: Conference Series 2664, no. 1 (2023): 012002. http://dx.doi.org/10.1088/1742-6596/2664/1/012002.

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Abstract Gesture-based control has gained prominence as an intuitive and natural means of interaction with unmanned aerial vehicles (UAVs). This paper presents a real-time gesture-based control system for UAVs that leverages the multimodal fusion of Frequency Modulated Continuous Wave (FMCW) radar and vision sensors, aiming to enhance user experience through precise and responsive UAV control via hand gestures. The research focuses on developing an effective fusion framework that combines the complementary advantages of FMCW radar and vision sensors. FMCW radar provides robust range and veloci

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PRATIWI, HANA, MUJIB RAMADAN HIDAYAT, AHMAD FATHAN MAARIF, ALOYSIUS ADYA PRAMUDITA, and FIKY YOSEP SURATMAN. "Radar FMCW dengan IQ Demodulator Jamak untuk Deteksi Pernafasan pada Pengaruh Clutter." ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika 8, no. 1 (2020): 125. http://dx.doi.org/10.26760/elkomika.v8i1.125.

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ABSTRAK  Pada pendeteksian pernafasan menggunakan sistem radar maka adanya pantulan dari sejumlah objek statis di sekitar target akan memberikan pengaruh pada hasil pendeteksian. Modifikasi pada sistem FMCW telah diusulkan untuk memberikan kemampuan dalam mendeteksi pernafasan multi target. Konsep deteksi fasa dilaborasi pada metode usulan untuk menghadirkan kemampuan deteksi pergeseran kecil. IQ demodulator jamak diusulkan sebagai konsep modifikasi pada sistem FMCW untuk permasalah tersebut. Pengujian kemampuan sistem usulan pada kondisi clutter dilakukan dengan melakukan ka

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Geng, Ziwei, Longfei Yin, Dasheng Qian, Guohua Wu, and Bin Luo. "Noise suppression of FMCW lidar." Journal of Physics: Conference Series 2480, no. 1 (2023): 012001. http://dx.doi.org/10.1088/1742-6596/2480/1/012001.

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Abstract Aiming at the problem that the ranging accuracy of the frequency-modulated continuous wave (FMCW) lidar decreases in the strong noise environment, experiments are carried out to verify the feasibility of the Faraday anomalous dispersion filter (FADOF) in the FMCW lidar system. The transmitter of the system uses the potassium atom vapor cell to stabilize the frequency and uses the field programmable gate array (FPGA) as the servo system. K-FADOF is used to suppress the additive noise at the receiving end of the lidar system. The results of this experiment show that the use of FADOF can

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Meta, Adriano, Peter Hoogeboom, and Leo P. Ligthart. "Signal Processing for FMCW SAR." IEEE Transactions on Geoscience and Remote Sensing 45, no. 11 (2007): 3519–32. http://dx.doi.org/10.1109/tgrs.2007.906140.

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35

SALOUS, S., and N. NIKANDROU. "Architecture for advanced FMCW sounding." International Journal of Electronics 84, no. 5 (1998): 429–36. http://dx.doi.org/10.1080/002072198134535.

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36

Marshall, Hans-Peter, and Gary Koh. "FMCW radars for snow research." Cold Regions Science and Technology 52, no. 2 (2008): 118–31. http://dx.doi.org/10.1016/j.coldregions.2007.04.008.

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Stove, A. G. "Erratum: Linear FMCW radar techniques." IEE Proceedings F Radar and Signal Processing 140, no. 2 (1993): 137. http://dx.doi.org/10.1049/ip-f-2.1993.0019.

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Gao, Jiaqi, Wuping Zhou, and Xiaozhi Wang. "DopplerPTNet: Object Detection Network with Doppler Velocity Information for FMCW LiDAR Point Cloud." Journal of Physics: Conference Series 2809, no. 1 (2024): 012006. http://dx.doi.org/10.1088/1742-6596/2809/1/012006.

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Abstract In the field of autonomous driving, LiDAR plays a crucial role in perception and detection. LiDAR based on Time-of-Flight (ToF) mode can only provide three-dimensional spatial coordinate information of point clouds. In point cloud object detection, the limited feature information of spatial coordinates to some extent restricts the further optimization and improvement of algorithm detection performance. However, LiDAR based on Frequency-Modulated Continuous-Wave (FMCW) mode can not only obtain the three-dimensional spatial coordinates of point clouds, but also directly measure the Dopp

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Liu, Jiangtao, Wenyuan Feng, Tao Su, Jianzhong Chen, and Shaohong Xue. "Millimeter-Wave OFDM-FMCW Radar-Communication Integration System Design." Remote Sensing 17, no. 6 (2025): 1062. https://doi.org/10.3390/rs17061062.

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Frequency-modulated continuous wave (FMCW) and orthogonal frequency-division multiplexing (OFDM) technologies play significant roles in millimeter-wave radar and communication. Their combinations, however, are understudied in the literature. This paper introduces a novel OFDM-FMCW dual-functional radar-communications (DFRC) system that takes advantage of the merits of both technologies. Specifically, we introduce a baseband modulation to the traditional FMCW radar system architecture. This integration combines the advantages of both waveforms, enhancing the diversity of radar transmission wave

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Kim, Sangdong, Bongseok Kim, Youngseok Jin, and Jonghun Lee. "Human Identification by Measuring Respiration Patterns Using Vital FMCW Radar." Journal of Electromagnetic Engineering and Science 20, no. 4 (2020): 302–6. http://dx.doi.org/10.26866/jees.2020.20.4.302.

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This letter proposes a method of human identification that measures respiration patterns using frequency-modulated continuous wave (FMCW) radar. We exploit the fact that respiration signal patterns are unique to each individual, and FMCW radar is employed to obtain the respiration information. Based on the strengths of FMCW radar, the proposed algorithm compensates for the inability to distinguish the respiration signals of multiple users, which are difficult for continuous wave radar to measure. The proposed algorithm also employs a deep neural network algorithm instead of the K-nearest neigh

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Hinz, J. O., and U. Zölzer. "A MIMO FMCW radar approach to HFSWR." Advances in Radio Science 9 (July 29, 2011): 159–63. http://dx.doi.org/10.5194/ars-9-159-2011.

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Abstract. In this paper we propose one possible approach how to apply the concept of multiple-input multiple-output (MIMO) to monostatic Frequency Modulated Continuous Wave (FMCW) High-Frequency Surface Wave Radar (HFSWR) in a maritime environment. Common tasks for a HFSWR are sea-state monitoring and ship detection, where our focus is on ship detection. A limiting factor in HFSWR is the available bandwidth, which is inversely proportional to the range resolution capability of the radar and typical below 100 kHz. The question is how to extend or combine a conventional single-input multiple-out

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Li, Meng, Mengpeng Hu, Hui Zhang, et al. "All-Fiber Photoacoustic Gas Sensing with Interferometric Location." Photonics 9, no. 8 (2022): 546. http://dx.doi.org/10.3390/photonics9080546.

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Photoacoustic spectroscopy (PAS) is a promising gas detection technique with high sensitivity, fast response, and good stability. Frequency-modulated continuous-wave (FMCW) interferometry offers precise distance detection with high spatial resolution. The combination of PAS and FMCW may lead to an optical technique for the simultaneous extraction of gas concentration and location information. Herein, we demonstrate this technique in an all-fiber sensing system by blending a fiber-pigtailed PAS sensor with an FMCW interferometer. As an example, we have measured the methane concentration and loc

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Jahn, Martin, and Andreas Stelzer. "A 120 GHz FMCW radar frontend demonstrator based on a SiGe chipset." International Journal of Microwave and Wireless Technologies 4, no. 3 (2012): 309–15. http://dx.doi.org/10.1017/s1759078712000323.

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This paper presents a frequency-modulated continuous-wave (FMCW) radar operating at 120 GHz, which features silicon–germanium (SiGe) chips that employ HBTs with 320 GHz fmax. The chipset comprises a fundamental-wave signal-generation chip with a voltage-controlled oscillator (VCO) that provides frequencies between 114 and 130 GHz and a corresponding dual–transceiver (TRX) chip that supports monostatic and quasi-monostatic radar configurations. The cascode amplifiers used in the TRX chip were characterized in separate test chips and yielded peak small-signal gains of approximately 15 dB. Finall

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Fauquet, Frédéric, Francesca Galluzzi, Rémy Chapoulie, Aurélie Mounier, Ayed Ben Amara, and Patrick Mounaix. "Terahertz Frequency-Modulated Continuous-Wave Inspection of an Ancient Enamel Plate." Sensors 25, no. 9 (2025): 2928. https://doi.org/10.3390/s25092928.

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This study investigates the application of terahertz frequency-modulated continuous-wave (FMCW) imaging for the non-destructive inspection of a historical enamel plate, using both reflection and transmission modes. A 300 GHz FMCW radar system was employed to capture high-resolution images of the plate’s internal and surface structures. Through optimized data acquisition and processing, the system successfully revealed subsurface features such as fractures, as well as surface-level textural variations linked to the decorative glazes. Although pigment differentiation remains a challenge, contras

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Sheng, Li Wen, Yan Ling Xiong, Wen Long Yang, Shuo Duo Li, Xue Ming Jin, and Li Wang. "Fiber Bragg Grating Sensor Multiplexing System Based on FMCW." Applied Mechanics and Materials 336-338 (July 2013): 232–38. http://dx.doi.org/10.4028/www.scientific.net/amm.336-338.232.

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The addressing principle of distributed optical fiber Bragg grating (FBG) sensor based on frequency modulation continuous wave (FMCW) multiplexing technology was studied. The effect of grating position information, scanning time and scanning frequency range on the spectrum signals was analyzed by simulation. The FMCW multiplexing system, which was composed of the arbitrary waveform generator, light intensity modulator and multiplier etc, was established and the certifications were delivered by the experimental system.

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Zhang, Yongqiang, Xiaopeng Li, Guilei Ma, Jinlong Ma, Menghua Man, and Shanghe Liu. "A New Model for Human Running Micro-Doppler FMCW Radar Features." Applied Sciences 13, no. 12 (2023): 7190. http://dx.doi.org/10.3390/app13127190.

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Human body detection is very important in the research of automotive safety technology. The extraction and analysis of human micro-motion based on frequency-modulated continuous wave (FMCW) radar is gradually receiving attention. Aimed at the modulation effect of human micro-motion on FMCW radar, a human running model is proposed to study human radar characteristics. According to the scattering characteristics of rigid bodies, the analytical expression of human running radar echoes is established. By using time–frequency analysis, the micro-Doppler features in the radar echoes are extracted du

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Choi, Ho-Ik, Woo-Jin Song, Heemang Song, and Hyun-Chool Shin. "Selecting Target Range with Accurate Vital Sign Using Spatial Phase Coherency of FMCW Radar." Applied Sciences 11, no. 10 (2021): 4514. http://dx.doi.org/10.3390/app11104514.

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Respiration and heartbeat are basic indicators of the physiological state of human beings. Frequency-modulated continuous wave (FMCW) radar can sense micro-displacement in the human body surface without contact, and is used for vital-sign (respiration and heartbeat) monitoring. For the extraction of vital-sign, it is essential to select the target range containing vital-sign information. In this paper, we exploit the coherency of phase in different range-bins of FMCW radar to effectively select the range-bins that contain accurate signals for remote monitoring of human respiration and heartbea

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Häfner, Stephan, and Reiner Thomä. "Identification of Linear Time Invariant Systems Using FMCW Signals and Stretch Processing Receivers." International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems 8, no. 2 (2019): 35. http://dx.doi.org/10.11601/ijates.v8i2.276.

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The paper deals with the identification of linear time invariant (LTI) systems by a special observer. An observer emitting an frequency modulated continuous wave (FMCW) signal and having a stretch processor as receiver will be considered for system identification. A thorough derivation of the gathered baseband signal for arbitrary LTI systems will be given. It is shown, that the received signal is approximately given by the transfer function of the LTI system over the frequency sweep of the FMCW signal. The proof relies on an infinite large time-bandwidth product of the transmit signal, such t

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Edwar, E., and Achmad Munir. "Prototype of Dual DDS FMCW Transmitter for L-Band Synthetic Aperture Radar." Journal of Measurements, Electronics, Communications, and Systems 4, no. 1 (2018): 8. http://dx.doi.org/10.25124/jmecs.v4i1.1694.

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One of the popular remote sensing technique is remote sensing using radar technology such as Synthetic Aperture Radar (SAR). In this paper, a compact SAR prototype transmitter was designed so it could be installed in small platform. This SAR transmitter was designed to generate a frequency modulated continuous wave (FMCW) using direct digital synthesizer (DDS) integrated with RF front end modules such as analog filter and power amplifier. The bandwidth of the radar spectrum is 10 MHz, and the carrier frequency used is 1.27 GHz. The L-Band has been chosen as the carrier signal in order to detec

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Kim, Bong-seok, Sangdong Kim, Youngseok Jin, and Jonghun Lee. "Low-Complexity Joint Range and Doppler FMCW Radar Algorithm Based on Number of Targets." Sensors 20, no. 1 (2019): 51. http://dx.doi.org/10.3390/s20010051.

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A low-complexity joint range and Doppler frequency-modulated continuous wave (FMCW) radar algorithm based on the number of targets is proposed in this paper. This paper introduces two low-complexity FMCW radar algorithms, that is, region of interest (ROI)-based and partial discrete Fourier transform (DFT)-based algorithms. We find the low-complexity condition of each algorithm by analyzing the complexity of these algorithms. From this analysis, it is found that the number of targets is an important factor in determining complexity. Based on this result, the proposed algorithm selects a low-com

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