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W1706651743 abstract "When using a long range radar (LRR) to track a target with micromotion, the micro-Doppler embodied in the radar echoes may suffer from ambiguity problem. In this paper, we propose a novel method based on compressed sensing (CS) to solve micro-Doppler ambiguity. According to the RIP requirement, a sparse probing pulse train with its transmitting time random is designed. After matched filtering, the slow-time echo signals of the micromotion target can be viewed as randomly sparse sampling of Doppler spectrum. Select several successive pulses to form a short-time window and the CS sensing matrix can be built according to the time stamps of these pulses. Then performing Orthogonal Matching Pursuit (OMP), the unambiguous micro-Doppler spectrum can be obtained. The proposed algorithm is verified using the echo signals generated according to the theoretical model and the signals with micro-Doppler signature produced using the commercial electromagnetic simulation software FEKO." @default.
W1706651743 created "2016-06-24" @default.
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W1706651743 date "2015-01-01" @default.
W1706651743 modified "2023-09-27" @default.
W1706651743 title "Micro-Doppler Ambiguity Resolution Based on Short-Time Compressed Sensing" @default.
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W1706651743 doi "https://doi.org/10.1155/2015/864508" @default.
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