分布式卫星InSAR系统的成像算法研究
The Study of Imaging Algorithm of Distributed Satellites InSAR System
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摘要: 该文研究了分布式卫星干涉合成孔径雷达(InSAR)系统中双基斜视雷达的CS成像算法，给出了算法的具体实现过程，并在算法实现中对分布式卫星InSAR系统的基线不稳定进行了补偿，消除了基线不稳定对SAR图像和干涉测量的影响。通过模拟仿真，验证了双基斜视CS算法的保相性以及基线不稳定补偿方法的有效性。Abstract: Chirp Scaling (CS) imaging algorithm is derived and implemented in this paper, which is adapted to bistatic and squinted radar in distributed satellites Interferometric Synthetic Aperture Radar (InSAR) system. Considering the characteristic of baseline instability in this system, an effective method is proposed to eliminate the effect of baseline instability on SAR image and interferometric measure. The simulation results validate the property of phase preserving of bistatic and squinted CS algorithm and the effectiveness of compensated method of baseline instability.
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Raney R K, Runge H, Bamler R, et al.. Precision SAR processing using chirp scaling[J].IEEE Trans. on Geosci. Remote Sensing.1994, 32(4):786-799[2]Loffeld O, Nies H, Perters V, et al.. Models and useful relations for bistatic SAR processing[J].IEEE Trans. on Geosci. Remote Sensing.2004, 42(10):2031-2038[3]Massonnet D. Capabilities and limitations of the interferometric cartwheel[J].IEEE Trans. on Geosci. Remote Sensing.2001, 39(3):506-520[4]林来兴. 微小卫星编队飞行组成虚拟卫星研究. 微小卫星编队飞行及应用论文集. 北京: 国家高技术航天领域专家委员会微小卫星技术组, 2000: 1-35.[5]魏钟. 合成孔径雷达卫星. 北京: 科学出版社, 2001: 160-172. -
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