基于交叉接收的空时频编码高分辨率SAR处理方法

陈龙永; 梁兴东; 丁赤飚

doi:10.3724/SP.J.1146.2008.01541

基于交叉接收的空时频编码高分辨率SAR处理方法

doi: 10.3724/SP.J.1146.2008.01541

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出版历程
- 收稿日期: 2008-11-24
- 修回日期: 2010-05-06
- 刊出日期: 2010-07-19

A High Resolution SAR Processing Method Based on Crossed Receiving Space-Time-Frequency Coding

摘要

摘要: 为了实现高分辨率宽测绘带SAR系统，需要在相对较小的天线孔径的约束下，提高系统的功率孔径积，并同时实现宽带信号的收发。针对上述问题，该文提出了一种基于交叉接收的空时频编码高分辨率SAR成像系统方案和处理方法，通过多子阵发射不同子带，不同波形的信号增大相控阵发射子阵的面积，提高了峰值功率，突破了传统SAR系统中功率孔径积的约束。采用交叉接收的频分方式实现大带宽信号合成，避免了复杂的后处理算法。理论和仿真验证了空时频编码的高分辨率SAR处理方法的有效性和可行性。
- SAR; 高分辨率; 宽测绘带; 空时频编码; 交叉接收
Abstract: High resolution wide swath SAR requires high power aperture product under the limit of small antenna. It also needs generating and receiving wideband signal. According to these problems, a space-time-frequency coding method based on crossed receiving is presented in this paper. This method increases power by transmitting multiple sub-bands and multiple waveforms and overcomes the limits of power aperture product. It synthesizes wideband signal by the method of crossed receiving without complicated imaging algorithm. Finally simulations show its feasibility and validity.

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魏钟铨等. 合成孔径雷达卫星[M]. 第一版，北京：科学出版社，2001: 1-2.[2] Currie A and Brown M A. Wide-swath SAR[J]. IEEProceedings-Radar, Sonar and Navigation, 1992, 139(2):122-135.[3] Ender J H G and Brenner A R. PAMIRA wdeband phasearray SAR / MTI system[C]. European Conference onSynthetic Aperture Radar, Cologne, Germany, June 4-6,2002: 165-172.[4] Brenner A R and Ender J H G. Very wideband radar imagingwith the airborne SAR sensor PAMIR[C]. InternationalGeoscience and Remote Sensing Symposium, Toulouse,France, July 21-25, 2003: 533-535.[5] Fishler E and Haimovich A, et al.. MIMO Radar: An ideawhose time has come[C]. Radar Conference, Proceedings ofthe IEEE, Philadelphia, USA, April 26-29, 2004: 71-78.[6] Ender Joachim H G. Along-track array processing forMIMO-SAR/MTI[C]. European Conference on SyntheticAperture Radar, Friedrichshafen, Germany, June 2-5, 2008:67-69.[7] Krieger Gerhard, Gebert Nicolas, and Moreira Alberto.Multidimensional waveform encoding: A new digitalbeamforming technique for synthetic aperture radar remotesensing[J]. IEEE Transactions on Geoscience and RemoteSensing. 2008, 46(1): 31-46.[8] Kim Jung-Hyo and Ossowska Alicja. Investigation of MIMOSAR for interferometry[C]. Proceedings of the 4th EuropeanRadar Conference. Munich, Germany, Oct. 10-12, 2007:51-54.[9] 井伟，武其松，邢孟道，保铮. 多子带并发的MIMO-SAR 高分辨率大测绘带成像[J]. 系统仿真学报, 2008, 20(16):4373-4378.Jing Wei, Wu Qi-song, Xing Meng-dao, and Bao Zheng.Image formation of wide-swath high resolution MIMO-SAR[J].Journal of System Simulation, 2008, 20(16): 4373-4378.[10] 宋岳鹏，杨汝良. 应用多收发孔径实现高分辨率宽测绘带的合成孔径雷达研究[J]. 电子与信息学报, 2007, 29(9): 2110-2113.Song Yue-peng and Yang Ru-liang. Study on high resolution,wide swath synthetic aperture radar using multipletransmit-receive apertures[J]. Journal of Electronics Information Technology, 2007, 29(9): 2110-2113.[11] Dai Xi-zeng, Xu Jia, and Peng Ying-ning, High resolutionfrequency MIMO radar[C]. IEEE Radar Conference, Boston,USA, May 9, 2007: 693-698.[12] Bizzarri E and Gallo A S. Adaptive space-tme-frequencycoding schemes for MIMO OFDM[C]. GlobalTelecommunications Conference. Dallas, Texas, USA, Nov.29-Dec.3, 2004, 2: 933-937.[13] Li Zhen-fang, et al.. Performance improvement forconstellation SAR using signal processing techniques[J].IEEE Transactions on Aerospace and Electronic Systems,2006, 42(2): 436-452.

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