Title :
Modified motion compensation approach for high-squint airborne SAR
Author :
Zeng, Tao ; Liu, L. ; Ding, Zhenyang
Author_Institution :
Radar Research Laboratory, Department of Electronic Engineering, Beijing Institute of Technology, 100081, China
Abstract :
Azimuth-subaperture processing is a widely used motion compensation (MOCO) approach which reduces the influence of variable aircraft parameters. However, in high-squint SAR mode, azimuth-signal aliasing of each subaperture becomes serious and drops the quality of the final image considerably. In this paper, through the study of azimuth-subaperture spectrum extension, a modified MOCO approach is proposed to eliminate azimuth-signal aliasing. Simulations and experimental results are provided to demonstrate our proposed approach.
Keywords :
azimuth subaperture; high-squint SAR; motion compensation (MOCO); spectrum extension;
Conference_Titel :
Radar Systems (Radar 2012), IET International Conference on
Conference_Location :
Glasgow, UK
Electronic_ISBN :
978-1-84919-676
DOI :
10.1049/cp.2012.1719
