Moving Target Indication for Multichannel FMCW SAR via Iterative Adaptive Approach

Konferenz: EUSAR 2016 - 11th European Conference on Synthetic Aperture Radar
06.06.2016 - 09.06.2016 in Hamburg, Germany

Tagungsband: EUSAR 2016

Seiten: 4Sprache: EnglischTyp: PDF

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Lou, Shengqiang; Cheng, Pu; Wang, Zhan; Wan, Jianwei; Xu, Ke (National University of Defense Technology, China)

Frequency-Modulated Continuous-Wave Synthetic Aperture Radar (FMCW SAR) is a compact promising remote imaging sensor. It has an intrinsic advantage of multichannel processing, which allows for effective clutter suppression and high resolution slow moving target indication. To obviate the need of secondary data and to obtain high resolution spectrum estimation, a weighted least squares based iterative adaptive approach (IAA) is introduced to FMCW SAR. Via modified two-dimensional IAA, the targets can be clearly and accurately indicated in the angle-Doppler image.