Title :
Target radial velocity estimation based on data reconstruction and signal fitting
Author :
Shu, Yuxiang ; Liao, Guisheng ; Yang, Zhiwei
Author_Institution :
Nat. Lab. of Radar Signal Process., Xidian Univ., Xi´´an, China
Abstract :
Due to many nonideal conditions such as the channel gain/phase response error and multi-channel range-doppler images coregistration error, the performance of radial velocity estimation of moving targets with the traditional adaptive match filtering algorithm will degrade. For the purpose of overcoming this influence, a new radial velocity estimation algorithm based on data reconstruction and signal fitting is proposed. The validity and superiority of this method are experimentally verified by the simulated and real synthetic aperture radar (SAR) data. The results illustrate this method has a good robustness to image coregistration error and channel response error.
Keywords :
adaptive filters; image reconstruction; image registration; matched filters; radar imaging; synthetic aperture radar; adaptive match filtering algorithm; channel gain-phase response error; data reconstruction; multichannel range-Doppler image coregistration error; real SAR data; signal fitting; simulated synthetic aperture radar data; target radial velocity estimation; Channel estimation; Clutter; Estimation; Image reconstruction; Spaceborne radar; Vectors; clutter rejection; ground moving target indication; target parameter estimation;
Conference_Titel :
Synthetic Aperture Radar (APSAR), 2011 3rd International Asia-Pacific Conference on
Conference_Location :
Seoul
Print_ISBN :
978-1-4577-1351-4
