Application of real-time signal processing in chirp scaling SAR imaging

Author

Ge Shiqi ; Long Teng ; Chen Liang

Author_Institution

Sch. of Inf. & Electron., Beijing Inst. of Technol., Beijing

fYear

2009

fDate

20-22 April 2009

Firstpage

1

Lastpage

4

Abstract

In order to meet the challenges of space-borne SAR real-time imaging, a two-processor chirp scaling SAR processing cluster is currently under research and development. First, this paper focuses on the optimizing of real-time imaging processing method based on deep analysis of CSA and Doppler parameter estimation algorithm. And then, different levels of parallel processing technique on hardware are discussed. The experiment is performed on real space-borne SAR echo data block (16384*16384) and the whole progress is completed within 41s. The design and implementation concept of this highly flexible SAR processing cluster can be extended to other platform.

Keywords

Doppler radar; digital signal processing chips; parallel processing; radar computing; radar imaging; spaceborne radar; synthetic aperture radar; Doppler parameter estimation algorithm; SAR echo data block; flexible SAR processing cluster; parallel processing technique; real-time signal processing; space-borne SAR imaging; two-processor chirp scaling; Chirp Scaling algorithm; real-time processing; space-borne SAR;

fLanguage

English

Publisher

iet

Conference_Titel

Radar Conference, 2009 IET International

Conference_Location

Guilin

ISSN

0537-9989

Print_ISBN

978-1-84919-010-7

Type

conf

Filename

5367444