A New Approach to Autofocus Considering Strip M ap SAR

Meng Da-di; Ding Chi-biao

Volume 27 Issue 9

Sep. 2005

Turn off MathJax

Article Contents

Article Navigation > Journal of Electronics & Information Technology > 2005 > 27(9): 1349-1352

Meng Da-di, Ding Chi-biao. A New Approach to Autofocus Considering Strip M ap SAR[J]. Journal of Electronics & Information Technology, 2005, 27(9): 1349-1352.

Citation:

Meng Da-di, Ding Chi-biao. A New Approach to Autofocus Considering Strip M ap SAR[J]. Journal of Electronics & Information Technology, 2005, 27(9): 1349-1352.

Meng Da-di, Ding Chi-biao. A New Approach to Autofocus Considering Strip M ap SAR[J]. Journal of Electronics & Information Technology, 2005, 27(9): 1349-1352.

Citation:

Meng Da-di, Ding Chi-biao. A New Approach to Autofocus Considering Strip M ap SAR[J]. Journal of Electronics & Information Technology, 2005, 27(9): 1349-1352.

PDF( 1148 KB)

A New Approach to Autofocus Considering Strip M ap SAR

Received Date: 2004-04-15
Rev Recd Date: 2004-07-15
Publish Date: 2005-09-19

Abstract

Abstract

Phase Gradient Algorithm （PGA） is accomodated to focus the StripMap SAR data in this article. A new approach to StripMap SAR autofocus, StripMap PGA（SPGA）, is developed based on the difference between the received signal of StripMap SAR and SpotLight SAR and the classic PGA is referenced. The focused SAR images from SPGAdoes not have the problem of the shift between the blocks which can be found in the images from the traditional StripMap autofocus method. SPGA can get well focused SAR images from more universal scene because of the employment of phase error surface.

FullText(HTML)

References(1)

References

Eichel P H, Ghiglia D C, Jakowatz Jr C V. Speckle processing method for synthetic-aperture-radar phase correction[J].Optics Letters.1989, 14 (1):1-3[2]WAHL D E, Jakowatz. Jr C V, Thompson P A. New approach to StripMap SAR autofocus. Proceedings of the 1994 6th IEEE Digital Signal Processing Workshop, Yosemite California, Oct.1994:53 - 56.[3]Thompson D G, Bates J S, Arnold D V, Long D G. Extending the phase gradient autofocus algorithm for low-altitude StripMap mode SAR. Proceedings of the 1999 IEEE Radar Conference,Boston, Apr. 1999:36- 40.[4]郭智.高分辨率机载SAR运动补偿研究与系统实现.[博士论文],中国科学院电子学研究所,2003年5月.[5]WAHL D E, Eichel P H, Ghiglia D C. Phase gradient autofocus- a robust tool for high resolution SAR phase correction[J].IEEE Trans. on Aerospace and Electronic Systems.1994, 30(3):827-835[6]张澄波.综合孔径雷达原理、系统分析与应用.北京:科学出版社,1989年11月,第3,4章.

Relative Articles

Supplements(0)

Cited By

Proportional views