| 一种深度欠采样的快速SAR成像算法 |
| |
| 引用本文： | 王健,宗竹林.一种深度欠采样的快速SAR成像算法[J].火控雷达技术,2011(4):19-24. |
| |
| 作者姓名： | 王健 宗竹林 |
| |
| 作者单位： | 电子科技大学,成都,611731 |
| |
| 摘 要： | 以减少SAR成像所需数据量，缩短成像时间为目的，本文构建了深度欠采样回波信号的模型，提出了一种二维脉冲压缩算法，该算法利用OMP和BCS算法对欠采样回波做距离向和方位向压缩，实现了二维SAR快速成像。通过对点目标模型SAR回波的仿真验证了方案的有效性。
|
| 关 键 词： | 压缩感知(CS) SAR 正交匹配追踪(OMP) 贝叶斯压缩感知(BCS) |
A Fast SAR Imaging Algorithm Based on Deep Under-sampling |
| |
| Wang Jian,Zong Zhulin.A Fast SAR Imaging Algorithm Based on Deep Under-sampling[J].Fire Control Radar Technology,2011(4):19-24. |
| |
| Authors: | Wang Jian Zong Zhulin |
| |
| Affiliation: | (University of Electronic Science and Technology of China,Chengdu 611731) |
| |
| Abstract: | Abst For the purpose of reducing the amount of data required by synthetic aperture radar （SAR） imaging and shortening imaging time, a 2-D pulse compression algorithm is proposed based on constructing of deep under-sampled echo signal model. In this algorithm, orthogonal matching pursuit （OMP） and Bayesian compressive sensing （BCS） algorithms are applied for range profile and azimuth profiles compression, so as to obtain 2-D fast SAR imaging. The effectiveness of the scheme is verified via simulation by using SAR echoes of point target model. |
| |
| Keywords: | compressive sensing （CS） SAR orthogonal matching pursuit （OMP） Bayesian compressive sensing （BCS） |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
