Dilation dependent matched filtering for SAR signal processing

Author

Zeng, Yonghong ; Lin, Zhiping ; Bi, Guoan ; Yeo, Jocelyn ; Lu, Shanguo

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore

Volume

41

Issue

2

fYear

2005

fDate

4/1/2005 12:00:00 AM

Firstpage

729

Lastpage

736

Abstract

The relative motion between radar and targets in large time-bandwidth product synthetic aperture radar (SAR) induces serious dilation in the received signal. To process the received signal with serious dilation, a new technique called dilation dependent matched filtering (DDMF) is proposed to combine with the two-dimensional space frequency interpolation wavefront reconstruction (SFIWR) method. The DDMF-SFIWR method can effectively eliminate the impact of dilation when the illuminated area is relatively small, as verified by simulations and acoustic experiments.

Keywords

filtering theory; matched filters; radar signal processing; synthetic aperture radar; 2D space frequency interpolation wavefront reconstruction method; DDMF-SFIWR method; SAR signal processing; dilation dependent matched filtering; synthetic aperture radar; Acoustic pulses; Aircraft; Bandwidth; Filtering; Image reconstruction; Matched filters; Radar signal processing; Signal processing; Spaceborne radar; Synthetic aperture radar;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/TAES.2005.1468763

Filename

1468763