Results 191 to 200 of about 22,466 (253)
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A Sparse Uniform Linear Array DOA Estimation Algorithm for FMCW Radar
IEEE Signal Processing Letters, 2023Sparse arrays offer evident advantages over their uniform linear counterparts, including larger aperture and higher angular resolution. Despite their benefits, typical sparse arrays, such as nested and coprime arrays, exhibit increased complexity, and ...
Zheng Xu, Yaling Chen, Peng Zhang
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A Coherent CZT-Based Algorithm for High-Accuracy Ranging With FMCW Radar
IEEE Transactions on Instrumentation and Measurement, 2023The essence of frequency-modulated continuous wave (FMCW) radar-ranging is to estimate the frequency of the beat signal, and the frequency’s accuracy determines the range accuracy.
Zheng-guang Xu, Si Qi, Peng Zhang
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Signal Processing for FMCW SAR
IEEE Transactions on Geoscience and Remote Sensing, 2007The combination of frequency-modulated continuous-wave (FMCW) technology and synthetic aperture radar (SAR) techniques leads to lightweight cost-effective imaging sensors of high resolution. One limiting factor to the use of FMCW sensors is the well-known presence of nonlinearities in the transmitted signal.
Meta, A., Hoogeboom, P., Ligthart, L.P.
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Polarimetric FMCW weather radar
2015 23nd Signal Processing and Communications Applications Conference (SIU), 2015This study which was conducted as a Master's thesis, is a radar system working at X band. In this system, a 2 Watt continuous electromagnetic wave which is modulated with frequency ramp of 30 MHz bandwidth is generated and radiated through TX antenna. The scattered signal from the hydrometeors is multiplied with the transmitted one and beat signal is ...
Salih Coskun +3 more
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2012 20th Signal Processing and Communications Applications Conference (SIU), 2012
This paper reports some of our studies concerning the countermeasures against FMCW radars. Generation and the effects of noise jamming and deceptive jamming signals on FMCW radars are studied via detailed simulation models.
Kadir Eraltay, Yakup Ozkazanc
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This paper reports some of our studies concerning the countermeasures against FMCW radars. Generation and the effects of noise jamming and deceptive jamming signals on FMCW radars are studied via detailed simulation models.
Kadir Eraltay, Yakup Ozkazanc
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2009 9th International Conference on Intelligent Transport Systems Telecommunications, (ITST), 2009
In this paper, we present a comparison of two strategies for FMCW radars. The potential presence of multiple targets implies using specific waveforms for beat frequencies association. Here, we compare performance of two such waveforms in terms of targets distance and velocity estimation.
Ali Bazzi +4 more
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In this paper, we present a comparison of two strategies for FMCW radars. The potential presence of multiple targets implies using specific waveforms for beat frequencies association. Here, we compare performance of two such waveforms in terms of targets distance and velocity estimation.
Ali Bazzi +4 more
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Emulation and Malicious Attacks to Doppler and FMCW Radars for Human Sensing Applications
IEEE transactions on microwave theory and techniques, 2023This article presents emulation and adverse attack scenarios for Doppler radar-based motion sensors and frequency-modulated continuous-wave (FMCW) radars employed for noninvasive vital signs measurement and human presence sensing. In contrast to existing
Prateek Nallabolu +2 more
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2008 38th European Microwave Conference, 2008
This paper describes a method where a SAR system can be used with a single antenna both for transmitting and receiving. The system is using an antenna switch combined with a delayed version of the transmitted signal applied to the local oscillator of the detector.
Svein-Erik Hamran +3 more
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This paper describes a method where a SAR system can be used with a single antenna both for transmitting and receiving. The system is using an antenna switch combined with a delayed version of the transmitted signal applied to the local oscillator of the detector.
Svein-Erik Hamran +3 more
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Human Activity Recognition With FMCW Radar Using Few-Shot Learning
IEEE Sensors Journal, 2023Frequency-modulated continuous-wave (FMCW) radar-based human activity recognition algorithms often require a large amount of sample data and have a high computational complexity.
Shufeng Gong +6 more
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Low-pixel-count imaging FMCW lidar
Applied Optics, 2022We demonstrate the imaging capability of a frequency modulated continuous wave (FMCW) lidar based on a fiber bundle. The lidar constructs velocity and range images for hard targets at a rate of 60 Hz. The sensing range is up to 30 m with 20 mW output power. The instrument employs custom electronics with seven parallel heterodyne receivers.
Iskander Gazizov +2 more
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