Results 21 to 30 of about 5,323,059 (392)
Sensors, 2020 This paper is about designing a 3D no n-stationary wideband indoor channel model for radio-frequency sensing. The proposed channel model allows for simulating the time-variant (TV) characteristics of the received signal of indoor channel in the presence ...
Ahmed Abdelgawwad +2 more
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Spectral and temporal gating mechanisms enhance the clutter rejection in the echolocating bat, Rhinolophus rouxi [PDF]
, 1991 Doppler shift compensation behaviour in horseshoe bats, Rhinolophus rouxi, was used to test the interference of pure tones and narrow band noise with compensation performance.
Neumann, Ingrid, Schuller, Gerd
core +1 more source
Moving Target Simulation of Multi-Band Radar Based on Doppler Frequency Signal Generation Technology [PDF]
Radioengineering, 2023 This paper proposes a corner reflector and Luneburg ball reflector group. The omnidirectional radar cross-sectional (RCS) distribution characteristics of a fighter are simulated using the sharp and smooth RCS distribution features of the corner and the ...
J. Hao, X. Wang, X. Sun, H.n Gao, L. Zou
doaj
IET Radar, Sonar & Navigation, 2022 Synthetic Impulse and Aperture Radar (SIAR) is a kind of Multiple Input Multiple Output (MIMO) radar. It is a four‐dimensional radar that has advantages against stealth targets, multi targets, anti‐radiated missile, reconnaissance and interference, as ...
Pourya Yaghoubi Aliabad +2 more
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Analysis of phase noise influence on micro-Doppler feature extraction of vibrating target
The Journal of Engineering, 2019 It is generally considered that increasing the carrier frequency of radar is an important way to improve the precision of micro-motion measurement. However, the increase of the radar frequency may raise the phase noise intensity of the radar transmitting
Zihao Liu, Bo Peng, Xiang Li
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Joint Carrier Synchronization Algorithm by Open-Loop Acquisition and Closed-Loop Tracking in High-Dynamic Environments [PDF]
Xibei Gongye Daxue Xuebao, 2018 Considering the difficulty of carrier synchronization and the low tracking accuracy in high-dynamic environments, the joint open-loop acquisition and closed-loop tracking carrier synchronization algorithm is presented.
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Frequency-comb-calibrated Doppler broadening thermometry [PDF]
Physical Review A, 2013 We describe an implementation of Doppler broadening thermometry based upon a room-temperature continuous-wave quantum cascade laser at 9.07 $\ensuremath{\mu}$m, coherently phase locked to a thulium optical frequency comb centered at 2 $\ensuremath{\mu}$m.
GATTI, DAVIDE +7 more
openaire +5 more sources
Lateral velocity measurement and error analysis
The Journal of Engineering, 2019 Most existing velocity measurement methods can only calculate the radial velocity by Doppler effect. Here, the authors study the method of measuring the lateral velocity.
Mengye Qiang, Yechao Bai, Xinggan Zhang
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Micro-Doppler Parameters Extraction of Precession Cone-Shaped Targets Based on Rotating Antenna
Remote Sensing, 2022 Micro-Doppler is regarded as a unique signature of a target with micro-motions. The sophisticated recognition of the cone-shaped targets can be realized through the micro-Doppler effect.
Zhihao Wang +4 more
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Multi-Frequency Doppler Velocimetry Based on a Mode-Locked Distributed Bragg Reflector Laser
Photonics, 2023 A differential multi-frequency laser Doppler velocimetry is demonstrated, utilizing the synchronized multimode of a mode-locked distributed Bragg reflector laser.
Hao Song +5 more
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