A chirp signal parameter estimation algorithm and its application to SAR imaging of moving targets

被引：0

作者：

Zhang, LP ^{[1
]}

Peng, YN ^{[1
]}

Xu, J ^{[1
]}

Xia, XG ^{[1
]}

机构：

[1] Tsing Hua Univ, Dept Elect Engn, Beijing 100084, Peoples R China

来源：

PROCEEDINGS OF THE 2003 IEEE RADAR CONFERENCE | 2003年

关键词：

D O I：

10.1109/NRC.2003.1203406

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

This paper provides a novel method for estimating the parameters of linear frequency modulated(LFM) signals, or the so called chirp signals, based on a modification to the filter bank approach of the maximum likelihood estimation. This method reduces the computational complexity of ML method. By using numerical simulations, the performance of the new approach are verified. Also we apply the algorithm to the raw data of an X-band airborne SAR with 3mx3m resolution. Moving targets are successfully focused.

引用

页码：228 / 231

页数：4

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