Guo Zhen-yong, Yuan Xin-zhe, Zhang Ping. An Algorithm of Multichannel SAR High-Resolution and Wide-Swath Imaging[J]. Journal of Electronics & Information Technology, 2008, 30(2): 310-313. doi: 10.3724/SP.J.1146.2006.00986
Citation:
Guo Zhen-yong, Yuan Xin-zhe, Zhang Ping. An Algorithm of Multichannel SAR High-Resolution and Wide-Swath Imaging[J]. Journal of Electronics & Information Technology, 2008, 30(2): 310-313. doi: 10.3724/SP.J.1146.2006.00986
Guo Zhen-yong, Yuan Xin-zhe, Zhang Ping. An Algorithm of Multichannel SAR High-Resolution and Wide-Swath Imaging[J]. Journal of Electronics & Information Technology, 2008, 30(2): 310-313. doi: 10.3724/SP.J.1146.2006.00986
Citation:
Guo Zhen-yong, Yuan Xin-zhe, Zhang Ping. An Algorithm of Multichannel SAR High-Resolution and Wide-Swath Imaging[J]. Journal of Electronics & Information Technology, 2008, 30(2): 310-313. doi: 10.3724/SP.J.1146.2006.00986
Synthetic Aperture Radar (SAR) with multiple antennas can realize High-Resolution Wide-Swath (HRWS) imaging,improve Signal to Noise Ratio (SNR) and improve ambiguity suppression for Moving Target Indication (MTI). This paper proposes an algorithm can realize HRWS imaging based on conversion bi-static data into mono-static data. The algorithm can correct phase according to velocity fluctuation of platform change. Furthermore the algorithm has high efficiency, for azimuth data need only one time FFT operation. Performance analysis and computer simulation are presented to illustrate the validity of the algorithm.
Cantofio L J. Space-Based Radar Handbook. Boston, MA:Artech House, 1989: 127-132.[2]Griffiths H D and Mancini P. Ambiguity suppression in SARSusing adaptive array techniques in proc. IGARSS, London,UK., 1991: 1010-1018.[3]Callaghan G D. and Longstaff I D. Wide-swath space-borneSAR and range ambiguity. Proceedings of Radar 97, October1997: 248-252.[4]Currie A and Brown M A. Wide-swath SAR. Proc. Inst. Elect.Eng. F., 1992, 139(2): 122-135.[5]Stiles J M and Goodman N A. Processing of multi-apertureSAR to produce fine-resolution images of arbitrarily largeextent. Radar Conference, 2001. Proceedings of the 2001,IEEE, 2001: 451-456.[6]Li Zhengfang, Wang Hongyang, Su Tao, and Bao Zheng.Generation of wide-swath and high-resolution SAR imagesfrom multichannel small spaceborne SAR systems[J].IEEEGeoscience and Remote Sensing Letters.2005, 2(1):82-86[7]Younis M and Wiesbeck W. Digital beamforming in SARsystems[J].IEEE Trans. on Geosicence and Remote Sensing.2003, 41(7):1735-1739[8]Soumekh M. Bistatic synthetic aperture radar inversion withapplication in dynamic object imaging[J].IEEE Trans. onSignal Processing.1991, 39(9):2044-2055[9]Franceschett G, Mazzeo A, and Mazzocca N. An efficientSAR parallel processor. IEEE Trans. on Aerospace andElectronic System, 1991, 27(2): 356-366.[10]Brenner N M. Fast Fourier transform of externally storeddata. IEEE Trans. on Audio and Electroacoustics, 2003, 41(7):128-132.