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DOI码：10.1109/JPHOT.2019.2929210

发表刊物：IEEE PHOTONICS JOURNAL

摘要：We propose and demonstrate a photonics-based coherent dual-band radar for super-resolution range profile in this paper. This radar cannot only generate coherent dual-band linear frequency modulated signals with large bandwidths, but also realize a paralleled coherent de-chirping processing to the dual-band echoes simultaneously based on a single compact photonics-assisted transceiver. The sharing of a single transceiver for signals with different bands ensures perfect stability and coherence among the waveforms, which makes it possible to realize a super-resolution range profile by fusion of dual-band signals without heavy computation on phase compensation. In the experiment, the radar operates in S-band with a bandwidth of 1.5 GHz and X-band with a bandwidth of 3 GHz, and results show its range resolution is up to 1.6 cm by coherent fusion processing, which is nearly corresponding to the resolution gotten by a linear frequency modulated wave with a bandwidth of 9.5 GHz ranging from 2 GHz to 11.5 GHz, much higher than the scenario when the radar is operated in the single-band mode. This technology would improve the accuracy of classification and recognition of the targets.

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

论文类型：J

文献类型：Article

卷号：11

期号：4

ISSN号：1943-0655

是否译文：否