HOS based algorithm for autofocusing of spotlight SAR images

被引：2
|
作者：
Berizzi, F
Corsini, G
Gini, F
机构：
[1] Dipto. Ingegneria della Informazione, Università di Pisa, Via Diotisalvi 2
来源：
ELECTRONICS LETTERS | 1997年 / 33卷 / 07期
关键词：
radar imaging; synthetic aperture radar; higher order statistics;
D O I：
10.1049/el:19970395
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The authors propose a novel SAR (synthetic aperture radar) image autofocusing technique based on higher order statistics (HOS) analysis, The SAR imaging system has hen modelled as a bandlimited complex linear time invariant (LTI) filter, so thr autofocusing problem is equivalent to the problem of reconstructing the phase of a bandlimited complex LTI system. The complex transfer function of the imaging system is recovered from th estimated bispectrum of the received data by means of an ad-hoc algorithm.
引用
收藏
页码：628 / 630
页数：3
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