一种求解任意构型双基SAR频谱的新方法

doi:10.3969/j.issn.1001-2400.2012.03.011

J4 ›› 2012, Vol. 39 ›› Issue (3): 72-79.doi: 10.3969/j.issn.1001-2400.2012.03.011

一种求解任意构型双基SAR频谱的新方法

刘玉春;王俊;李红伟

(西安电子科技大学雷达信号处理国家重点实验室，陕西西安 710071)

收稿日期:2011-08-30 出版日期:2012-06-20 发布日期:2012-07-03
作者简介:刘玉春(1979-)，男，西安电子科技大学博士研究生，E-mail: lycdgp@163.com．
基金资助:
国家部委预研基金资助项目(9140C010507100C01);863基金资助项目(2010AAJ144)

New method of deriving the spectrum for general bistatic SAR processing

LIU Yuchun;WANG Jun;LI Hongwei

(National Key Lab. of Radar Signal Processing, Xidian Univ., Xi'an 710071， China)

Received:2011-08-30 Online:2012-06-20 Published:2012-07-03

摘要/Abstract

摘要：

为了提高点目标参考频谱精度，提出一种求解任意构型双基SAR点目标参考频谱的新方法．该方法使用最佳平方逼近来展开收发斜距历程，通过直接求解代数方程得到驻相点，进而得到双基SAR点目标参考频谱．通过这两步处理，提高了二维频谱精度．仿真实验表明，该方法所得点目标参考频谱具有良好的聚焦性能．

关键词: 双基SAR, 参考频谱, 最佳平方逼近, 驻相原理

Abstract:

To improve the accuracy of the bistatic point target reference spectrum(BPTRS), a new method of deriving the spectrum is poposed.An optimal square approach technique is employed to handle the double square root of two range histories. The point of stationary phase is derived by solving the polynomial equation. Finally an accurate BPTRS is consequently formulated. Simulation results show that the spectrum estimation of the proposed method has a better focusing performance.

Key words: bistatic SAR, reference spectrum, optimal square approach, principle of stationary phase

中图分类号:

TN959.3

刘玉春;王俊;李红伟. 一种求解任意构型双基SAR频谱的新方法[J]. J4, 2012, 39(3): 72-79.

LIU Yuchun;WANG Jun;LI Hongwei. New method of deriving the spectrum for general bistatic SAR processing[J]. J4, 2012, 39(3): 72-79.

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一种求解任意构型双基SAR频谱的新方法

New method of deriving the spectrum for general bistatic SAR processing

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