Results 11 to 20 of about 14,460 (241)
Detection of Micro-Doppler Signals of Drones Using Radar Systems with Different Radar Dwell Times
Drones, 2022 Not any radar dwell time of a drone radar is suitable for detecting micro-Doppler (or jet engine modulation, JEM) produced by the rotating blades in radar signals of drones.
Jiangkun Gong +3 more
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Leida xuebao, 2023 Compared with traditional Electromagnetic (EM) wave radars, vortex EM wave radars can simultaneously observe the micro-motion components projected onto the radar’s radial and perpendicular planes, providing more information for target recognition.
Hang YUAN +4 more
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Chipless RFID Based on Micro-Doppler Effect
IEEE Transactions on Microwave Theory and Techniques, 2022 This paper demonstrates how motion effect can be exploited to read moving chipless RFID tags at larger distances compared to what has been reached without benifitly taking into account the movement. According to the Doppler effect, due to the time-variant behaviour of moving chipless tags, the tag back-scattered field contains frequency components ...
Ashkan Azarfar +2 more
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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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Decision Fusion and Micro‐Doppler Effects in Moving Sonar Target Recognition
International Journal of Intelligent Systems, 2023 This paper proposes a method for underwater target recognition based on micro‐Doppler effects (called STR_MD) using a majority voting ensemble classifier weighted with particle swarm optimization (PSO) (called MV‐PSO). The micro‐Doppler effect refers to amplitude/phase modulation of the received signal by rotating parts of a target such as propellers ...
Farhan A. Alenizi +4 more
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Research Advances on the Rotational Doppler Effect of Vortex Electromagnetic Waves
Leida xuebao, 2021 Traditional radars can detect moving targets using the Doppler effect. However, traditional radars have shadow areas in detecting the angular motion of the rotating targets.
Zhongyi GUO +3 more
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Photonics, 2022 The linear Doppler effect has been widely used to detect the translational motion of objects. However, it suffers difficulties in measuring the angular motion of a rotating target. In recent years, the rotational Doppler effect based on a vortex beam has
Tian-Yu Cheng +5 more
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Applied Sciences, 2019 Under the same principle, laser radar could be more sensitive to the micro-Doppler (m-D) effect due to its wave length, as the characteristic of multi-resolution, S transform could reduce the influence of the micro-Doppler component and enhance the ...
Bo Zang +4 more
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Micro-Doppler Clutter Removal Method Based on the Cancelation of Sliding STFT Spectrogram
Leida xuebao, 2022 Micro-motion clutter typically exhibits significant Doppler broadening, raises the noise floor, and annihilates weak targets, resulting in false alarms and missed detections.
Xianrong WAN +4 more
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Micro-Doppler Photoacoustic Effect and Sensing by Ultrasound Radar [PDF]
IEEE Journal of Selected Topics in Quantum Electronics, 2016 In recent years, photoacoustics have been studied for both anatomical and functional biomedical imaging. However, the physical interaction between photoacoustic-generated endogenous waves and an exogenously applied ultrasound wave is a largely unexplored area.
Gao, Fei, Feng, Xiaohua, Zheng, Yuanjin
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