Geng Xu-pu, Yan Hong-hui, Yu Hui, Wang Yan-fei. Image Formation of Translational-Invariant Bistatic SAR Based on HQBA[J]. Journal of Electronics & Information Technology, 2009, 31(6): 1288-1291. doi: 10.3724/SP.J.1146.2008.00777
Citation:
Geng Xu-pu, Yan Hong-hui, Yu Hui, Wang Yan-fei. Image Formation of Translational-Invariant Bistatic SAR Based on HQBA[J]. Journal of Electronics & Information Technology, 2009, 31(6): 1288-1291. doi: 10.3724/SP.J.1146.2008.00777
Geng Xu-pu, Yan Hong-hui, Yu Hui, Wang Yan-fei. Image Formation of Translational-Invariant Bistatic SAR Based on HQBA[J]. Journal of Electronics & Information Technology, 2009, 31(6): 1288-1291. doi: 10.3724/SP.J.1146.2008.00777
Citation:
Geng Xu-pu, Yan Hong-hui, Yu Hui, Wang Yan-fei. Image Formation of Translational-Invariant Bistatic SAR Based on HQBA[J]. Journal of Electronics & Information Technology, 2009, 31(6): 1288-1291. doi: 10.3724/SP.J.1146.2008.00777
By the method of stationary phase and the concept of HQBA (Half Quasi-Bistatic Angle), an exact two-dimensional spectrum of translational-invariant bistatic SAR is derived in this paper. Based on the analysis of every exponential term in the expanded spectrum, a flow chart of Range-Doppler algorithm with the computation of HQBA is proposed. Simulation results of HQBA, RCM and focused points are also provided. As they show, the proposed method can correct the RCM accurately, and improve the imaging quality.
Krieger G and Moreira A. Spaceborne bi- and multistaticSAR: potentials and challenges[J].IEE Proc.-Radar SonarNavig.2006, 153(3):184-198[2]Geng Xupu, Yan Honghui, and Wang Yanfei. Atwo-dimensional spectrum model for general bistatic SAR[J].IEEE Trans. on Geosci. Remote Sens.2008, 46(8):2216-2223[3]闫鸿慧, 王岩飞, 于海锋等. 一种基于距离补偿的分布式小卫星双基SAR 成像方法[J].电子与信息学报.2005, 27(5):771-774浏览[4]Loffeld O, Nies H, and Peters V, et al.. Models and usefulrelations for bistatic SAR processing[J].IEEE Trans. on Geosci.Remote Sens.2004, 42(10):2031-2038[5]Neo Y L, Wong F, and Cumming I G. A two-dimensionalspectrum for bistatic SAR processing using series reversion[J].IEEE Letters Geosci. Remote Sens.2007, 4(1):93-96[6]Zhang Zhenhua, Xing Mendao, and Ding Jinshan, et al..Focusing parallel bistatic SAR data using the analytictransfer function in Wavenumber domain[J].IEEE Trans. onGeosci. Remote Sens.2007, 45(11):3633-3645[7]Abell M L and Braselton J P. The Mathematic Handbook.Academic Press, 1993.[8]Bamler R. A comparison of range-Doppler and wavenumberdomain SAR focusing algorithm[J].IEEE Trans. on Geosci.Remote Sens.1992, 30(4):706-716[9]Raney R K, Runge H, and Bamler R, et al.. Precision SARprocessing using chirp scaling[J].IEEE Trans. on Geosci.Remote Sens.1994, 32(4):786-799[10]Cafforio C, Pratic C, and Rocca F. SAR data focusing usingseismic migration techniques[J].IEEE Trans. on Aerosp.Electron. System.1991, 27(2):194-207