DocumentCode :
2980483
Title :
A novel quadrature demodulation based on shifted matched filter in SAR imaging processing
Author :
Guoqing, Wang ; Huanzhang, Lu ; Xiang, Li
Author_Institution :
Res. Inst. of Space Electron., Nat. Univ. of Defense Technol., Changsha, China
fYear :
2009
fDate :
26-30 Oct. 2009
Firstpage :
1092
Lastpage :
1096
Abstract :
There is an increasing performance demand in receiving system of synthetic aperture radar (SAR) in recent days. Different kinds of digital quadrature demodulation (DQD) algorithms have come down to the filter design. A novel DQD filter based on the shifted matched filter is introduced in this paper. The performance of different filters is evaluated based on simulated echo data of one point target. Simulation shows that proposed filter can make the DQD meet precision demand and reduce computation greatly. The work in this paper provides a guide to design digital receiver in SAR.
Keywords :
demodulation; matched filters; radar imaging; synthetic aperture radar; SAR imaging processing; digital quadrature demodulation algorithms; echo data; shifted matched filter; synthetic aperture radar; Demodulation; Digital filters; Frequency; Information filtering; Information filters; Matched filters; Radar polarimetry; Sampling methods; Space technology; Synthetic aperture radar; Synthetic aperture radar (SAR); quadrature demodulation; the shifted matched filter;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Synthetic Aperture Radar, 2009. APSAR 2009. 2nd Asian-Pacific Conference on
Conference_Location :
Xian, Shanxi
Print_ISBN :
978-1-4244-2731-4
Electronic_ISBN :
978-1-4244-2732-1
Type :
conf
DOI :
10.1109/APSAR.2009.5374148
Filename :
5374148
Link To Document :
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