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DOI码：10.1364/OE.390063

发表刊物：OPTICS EXPRESS

摘要：The distance and velocity measurement can be obtained by the round-trip time and Doppler effect on the down-chirp and the up-chirp of the linear frequency-modulated waveform (LFMW), but false targets will appear in a multi-target situation, resulting in erroneous detection. Here, we report a photonics-assisted approach to realize unambiguous simultaneous distance and velocity measurement in multi-target situations utilizing a dual-band symmetrical triangular LFMW. Dual-band observation invariance is proposed, to effectively resolve the false targets. The de-chirped signals can be obtained from parallel de-chirping processing to the dual-band echoes. By measuring and calculating the beat frequencies of the de-chirped signals in the two frequency bands, the actual parameter measurements can be acquired according to the authenticity criterion. In the experiments, detections to three targets are performed, and the distance and velocities are acquired without false targets. The absolute measurement errors of the distance and the velocity are less than 9 mm and 0.16 m/s, respectively. These results show the feasibility of the proposed approach. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

第一作者：Peng, Shaowen, Li, Shangyuan, Xue, Xiaoxiao, Xiao, Xuedi, Zheng, Xiaoping

论文类型：J

文献类型：Article

卷号：28

期号：11

页面范围：16270

ISSN号：1094-4087

是否译文：否