Acta Optica Sinica, Volume. 37, Issue 11, 1111003(2017)
Imaging Method of Downward-Looking 3D Synthetic Aperture Radar Based on Multiple Measurement Vectors Model
The downward-looking three-dimensional synthetic aperture radar (DL 3D SAR) imaging method based on compressed sensing could complete the high-resolution imaging by using the sampling data below the Nyquist sampling rate. However, the existing DL 3D SAR imaging methods which used for cross-track profile reconstruction are based on the single measurement vectors (SMV) model and has defects of time-consuming and noise-affected. Based on the multiple measurement vectors (MMV) model, the order of cross-track and along-track in the DL 3D SAR imaging process are exchanged. By using the same sparse structure in cross-track domain for different along-track measurements, the DL 3D SAR imaging method based on MMV model is proposed. The proposed method is superior to the SMV-based method both on time-consuming, reconstruction accuracy and anti-noise performance, and the effectiveness is verified by the simulation experiments.
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Le Kang, Qun Zhang, Yichang Chen, Qiyong Liu. Imaging Method of Downward-Looking 3D Synthetic Aperture Radar Based on Multiple Measurement Vectors Model[J]. Acta Optica Sinica, 2017, 37(11): 1111003
Category: Imaging Systems
Received: May. 14, 2017
Accepted: --
Published Online: Sep. 7, 2018
The Author Email: Kang Le (18810495946@163.com)