Study On Image Registration In Multibaseline SAR-GMTI

Based on the project"Three-Channel Synthesize Array Radar GMTI(Ground Moving Target Indication)",This paper collected and analyzed the Information on SAR-GMTI,introduced the domestic and overseas SAR GMTI technology. Secondly, based on the Clutter Suppression Interferometry Isometric Three-Channel Synthesize Array Radar GMTI methods, this paper modeled the Raleigh distributed moving targets? clutters? and thermal noise in the SAR GMTI system, analyzed the performance of GMTI affected by the SCNR? image registration precision theoretically. And get their relation of expressions. Thirdly, this paper proposed a frequency domain phase correlation based SAR image registration method, which used the correlation of complex image's pixels, analyzed the correlation stripe of two images in frequency domain, and gave the precise offsets estimation of the two images. This method advantaged in auto, robust and high precision. At last this paper educes the prospects of SAR-GMTI and image registration.