An imaging algorithm for missile-borne spotlight SAR based on subband compensation

Jiang Huai; Han Min; Zhao Hui-Chang; Zhang Shu-Ning

doi:10.7498/aps.63.198404

Abstract

The missile-borne synthetic aperture radar (SAR) often use nonlinear scaling algorithm to improve the focusing effect. However, the nonlinear scaling algorithm cannot be used in missile-borne spotlight SAR because of its own limitations. Aiming at this problem, this paper first puts forward a new method named “sub-band compensation” and combineds it to the missile-borne SAR spotlight imaging algorithm. This new algorithm does not introduce the three phases of operation, so the Doppler frequency rate can be effectively compensated under low PRF. Simulation results and analysis show that compared with the nonlinear chirp scaling algorithm, the proposed one has advantages in computation, results obtained, and applicability.

Keywords:

Authors and contacts

1.
School of Electronic & Optical, Nanjing University of Science & Technology, Nanjing 210094, China;
2.
State key Laboratory of Milimeter Wave, South East University, Nanjing 210094, China

References

[1]	Yi Y S 2009Ph. D. Dissertation (Xi'an:XiDian University) (in Chinese) [易予生 2009 博士论文(西安: 电子科技大学)]
[2]	ZhouS, Bao M, ZhouP, Xing M D, BaoZ 2011 J. Electron. Inf. Tech. 33 1421 (in Chinses) [周松, 包敏, 周鹏, 邢孟道, 保铮 2011 电子与信息学报 33 1421]
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[4]	Jiang H, Zhao H C, Han M, Zhang S N 2014 Acta Phys. Sin. 63 078403(in Chinese) [江淮, 赵惠昌, 汉敏, 张淑宁 2014 63 078403]
[5]	Milman A S 1993 Int. J. Remote Sens. 14 1965
[6]	DavidsonGW, Cumming I G 1996 IEEE Trans. Aerosp. Electro. Syst. 32 121

Cited By

[1]	Yi Y S 2009Ph. D. Dissertation (Xi'an:XiDian University) (in Chinese) [易予生 2009 博士论文(西安: 电子科技大学)]
[2]	ZhouS, Bao M, ZhouP, Xing M D, BaoZ 2011 J. Electron. Inf. Tech. 33 1421 (in Chinses) [周松, 包敏, 周鹏, 邢孟道, 保铮 2011 电子与信息学报 33 1421]
[3]	Xiao Z Y, Xu H P, Li C S 2013 J. Electron. Inf. Tech. 35 1090 (in Chinse) [肖忠源, 徐华平, 李春升 2013 电子与信息学报 35 1090]
[4]	Jiang H, Zhao H C, Han M, Zhang S N 2014 Acta Phys. Sin. 63 078403(in Chinese) [江淮, 赵惠昌, 汉敏, 张淑宁 2014 63 078403]
[5]	Milman A S 1993 Int. J. Remote Sens. 14 1965
[6]	DavidsonGW, Cumming I G 1996 IEEE Trans. Aerosp. Electro. Syst. 32 121

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Catalog

Vol. 63, Issue 19 - 2014-10-05

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