Multi-channel Interferometric SAR/GMTI method for solving the radial velocity ambiguity of moving target

Yi Jiang; Fan Zhang

doi:10.1117/12.2521218

12 March 2019 Multi-channel Interferometric SAR/GMTI method for solving the radial velocity ambiguity of moving target

Yi Jiang, Fan Zhang

Proceedings Volume 11023, Fifth Symposium on Novel Optoelectronic Detection Technology and Application; 1102312 (2019) https://doi.org/10.1117/12.2521218
Event: Fifth Symposium on Novel Optoelectronic Detection Technology and Application, 2018, Xi'an, China

Abstract

To solve the problem of velocity ambiguity caused by over high azimuth velocity in the conventional SAR/GMTI system, a kind of multi-channel interferometric SAR/GMTI scheme solving the radial velocity ambiguity of moving target is presented in this paper. This method sets up four non-uniformly interval receiving channels and designs each channel spacing reasonably. Interferometric cancellation is carried out on the sub image of two echo signal, then it can get two velocity sets, and the intersection of the two sets is the correct estimation of the target velocity. Thus, the problem of velocity ambiguity is solved effectively and the radial velocity of the target is estimated correctly. Analysis and computer simulation demonstrates the validity of the method.

Citation Download Citation

Yi Jiang and Fan Zhang "Multi-channel Interferometric SAR/GMTI method for solving the radial velocity ambiguity of moving target", Proc. SPIE 11023, Fifth Symposium on Novel Optoelectronic Detection Technology and Application, 1102312 (12 March 2019); https://doi.org/10.1117/12.2521218

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