Title :
A new channel equalization method for airborne multi-channel SAR-GMTI system
Author :
Yang Lei ; Wang Tong Xing ; Mengdao Bao Zheng
Author_Institution :
Xidian Univ., Xian
Abstract :
This paper investigates the channel equalization problem of airborne multi-channel SAR-GMTI system. A key problem for ground moving target indication is clutter suppression, which is sensitive to the correlation of channels. For the multi-channel system, there are differences among the characteristic of two channels and also the antenna amplitude patterns (phase as well as gain), which worsen the correlation of channels. This paper proposes a channel equalization method to improve the clutter suppression ratio. Theoretical analysis is illustrated with experimental airborne SAR data.
Keywords :
airborne radar; correlation methods; equalisers; interference suppression; radar clutter; synthetic aperture radar; airborne multichannel SAR-GMTI system; antenna amplitude patterns; channel correlation; channel equalization; clutter suppression; ground moving target indication; Clutter; Hardware; Image analysis; Pattern analysis; Radar antennas; Radar imaging; Radar signal processing; Sensor phenomena and characterization; Synthetic aperture radar; Transmitters;
Conference_Titel :
Synthetic Aperture Radar, 2007. APSAR 2007. 1st Asian and Pacific Conference on
Conference_Location :
Huangshan
Print_ISBN :
978-1-4244-1188-7
Electronic_ISBN :
978-1-4244-1188-7
DOI :
10.1109/APSAR.2007.4418606
