Results 11 to 20 of about 314 (136)
Experimental Verification of Dual-Mode X-band FMCW Harmonic Radar [PDF]
2024 IEEE Asia-Pacific Microwave Conference (APMC)Harmonic radars that use passive nonlinear tags as targets are disadvantaged by the low power of the return signal, which significantly reduces their maximum operating range. To address this limitation, a novel dual-mode X-band FMCW harmonic radar capable of receiving both harmonic and intermodulation signal returns was developed.
Anastasia Lavrenko, Graeme Woodward
exaly +4 more sources
Metasurface Doppler Cloak for Broadband Radar Stealth
Advanced Physics ResearchConcealing an aircraft is a multi‐faceted endeavor, notably involving radio and infrared frequencies. In a radar stealth context, it often translates to the reduction of the radar cross‐section (RCS).
Tanguy Lopez +3 more
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A Review of Insect Monitoring Approaches with Special Reference to Radar Techniques
Sensors, 2021 Drastic declines in insect populations are a vital concern worldwide. Despite widespread insect monitoring, the significant gaps in the literature must be addressed. Future monitoring techniques must be systematic and global.
Alexey Noskov +2 more
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Remote Monitoring of Human Vital Signs Based on 77-GHz mm-Wave FMCW Radar
Sensors, 2020 In recent years, non-contact radar detection technology has been able to achieve long-term and long-range detection for the breathing and heartbeat signals.
Yong Wang +4 more
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A Coherent Dual-Band FMCW Photonic Radar Based on a Synchronized FMCW Optoelectronic Oscillator
IEEE AccessThis paper proposes and experimentally demonstrates a novel coherent radar architecture based on a synchronized frequency-modulated continuous-wave optoelectronic oscillator.
Youngseok Bae, Minji Hyun, Joonyong Park
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Non-Contact Heart Rate Monitoring Based on Millimeter Wave Radar
IEEE Access, 2022 Millimeter Wave(mmWave) radar has been widely used in vital sign monitoring with non-contact and privacy protection. To reduce the effect of random body motion, respiration, and its harmonics on heart rate estimation, the heart rate monitoring based on ...
Zongquan Ling +4 more
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ESSCIRC 2019 - IEEE 45th European Solid State Circuits Conference (ESSCIRC), 2019 This paper presents a digitally controlled frequency generator for dual frequency-band radar system that is optimized for 16 nm FinFET CMOS. It is based on a 21% wide tuning range, fine-resolution DCO with only switchable metal capacitors. A third-harmonic boosting DCO simultaneously generates 22.5–28 GHz and sufficiently strong 68–84 GHz signals to ...
Feng-Wei Kuo +6 more
openaire +4 more sources
Remote SensingWhen frequency-modulated continuous-wave (FMCW) laser radar (Ladar) is employed for three-dimensional imaging, the echo signal is susceptible to modulation nonlinearity and platform vibration due to modulation and the short wavelength.
Wei Li +5 more
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Intermediate frequency variation in long‐range FMCW radar for harmonics cancellation [PDF]
IET Radar, Sonar & Navigation, 2020 This study presents a technique for removing the inevitable harmonic distortions and intermodulation products that primary frequency‐modulated continuous wave (FMCW) radars inherently generate in the baseband. The required mixers and baseband amplifiers are non‐linear devices that introduce signal distortions, depending on the positions of targets in ...
Adrian Figueroa +2 more
openaire +1 more source
A 90-98 GHz CMOS Transmitter Frontend for Concurrent Phase-Coded FMCW Radar Applications
IEEE Journal of Microwaves, 2022 A 90-98 GHz transmitter frontend fabricated in TSMC 65-nm bulk CMOS, capable of concurrent radar-communications applications is presented. A transmitter is proposed that can be used for phase-coded frequency-modulated continuous wave (PC-FMCW) radar as ...
Tal Elazar, Eran Socher
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