FM-CW SAR距离-多普勒成像算法研究

耿淑敏; 江志红; 程翥; 皇甫堪

doi:10.3724/SP.J.1146.2006.00415

FM-CW SAR距离-多普勒成像算法研究

doi: 10.3724/SP.J.1146.2006.00415

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出版历程
- 收稿日期: 2006-04-03
- 修回日期: 2006-09-28
- 刊出日期: 2007-10-19

Study on Imaging Algorithm of FM-CW SAR

摘要

摘要: 调频连续波(FM-CW)合成孔径雷达因其体积小、重量轻、低成本及分辨率高等特点越来越受到关注。该文详细推导了调频连续波(FM-CW)体制下去调频FM-CW SAR信号模型，对FM-CW SAR 的特有问题如RVP，斜置，距离走动现象进行了深入研究，提出了改进的去调频FM-CW SAR的距离-多普勒成像算法。通过理论推导及仿真实验，验证了模型和算法的可行性与正确性。
- SAR;FM-CW;距离-多普勒成像算法;RVP;斜置
Abstract: There is a growing interest in the Frequency Modulated Continuous Wave (FM-CW) SAR for its small cubage, light weight, cost-effective and high resolution. In this paper, the principle of the de-chirped FM-CW SAR is analyzed in detail, the phenomena, for example, Residual Visual Phase (RVP), Slope, range walk are discussed deeply, and the improved range Doppler imaging algorithm for the de-chirped FM-CW SAR is presented. The deduction and the simulation prove the algorithm is feasible and correct.

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参考文献(1)

Griffiths H D. Synthetic aperture processing for full-deramp radar altimters[J].Electronics Letters.1988, 24(7):371-373[2]Connan G, Griffiths H D, and Brennan P V. FMCW-SAR development for internal wave imaging[C]. in MTS/IEEE OCEANS '97 Conference, Halifax 1997: 73-78.[3]Yamaguchi Y, Mitsumoto M, and Kawakami A, et al.. Detection of objects by synthetic aperture FM-CW radar[J]. Trans IEICE of Japan, 1991, J74-B-II: 413-420.[4]Yamaguchi Y, Mitsumoto M, and Sengoku M, et al..Synthetic aperture FM-CW radar applied to the detection of objects buried in snowpack[A]. In: eds. Proc.of IEEE Antennas and Propagation Society International Symposium, CRSI Radio Science and Nuclear EMP Meeting, Chicago[C]. 1992: 1122-1125.[5]Meta A and Hoogeboom P. High resolution airborne FM-CW SAR:digital signal processing Aspects[A]. In: eds. in Proc. IGARSS 03, Toulouse, France[C]. 2003: 4074-4076.[6]Duersch M I. BYU Micro-SAR: A very small low-power LFM-CW synthetic aperture radar[T]. in Brigham Young University [Master's Thesis] 2004.[7]Soumekh M. FM-CW SAR and phased array spatial-velocity imaging[J]. Proc ICIP-94, 1994: 471-475.[8]Edrich M. Design overview and flight test results of the miniaturised SAR sensor MISAR[C][A]. In: eds. Radar Conference, 2004. EURAD. First European,Amsterdam[C]. 2004: 205-208.[9]张军, 毛二可. 线形调频连续波SAR成像处理研究[J]. 现代雷达, 2005, 27(4): 42-45. Zhang Jun and Mao Er-ke. A study on LFMCW SAR signal processing. Modern Radar, 2005, 27(4): 42-45.[10]耿淑敏, 皇甫堪. 去调频FM-CW SAR距离维成像研究[J]. 国防科技大学学报, 2007, 29(1): 49-53. Geng Shu-min and Huangfu Kan. Study on range imaging of de-chirped FM-CW SAR[J]. Journal of Nat. Univ. of Defense Tech, 2007, 29(1): 49-53.[11]Smith R L. Micro synthetic aperture radar using FM-CW technology. in Department of ELectrical and Computer Engineering Brigham Young University [Master thesis], 2002.[12]禹卫东. 距离-多普勒方法中的几种插值算法比较[J].电子与信息学报.2001, 23(3):308-312浏览[13]李素芝, 万建伟. 时域离散信号处理[M]. 国防科技大学出版社, 1992: 185-188. Li Su-zhi and Wan Jian-wei. Discrete-time signal processing[M]. National University of Defense Technology Publisher, 1992: 185-188.

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