Title :
Motion compensation in post-PFA domain for high resolution spotlight SAR imagery
Author :
Yang, Lei ; Liao, Yi ; Zhang, Lei ; Xing, Meng-dao
Author_Institution :
Key Lab. for Radar Signal Process., Xidian Univ., Xi´´an, China
Abstract :
A novel motion compensation (MoCo) algorithm for high resolution (HR) spotlight SAR imagery is proposed. It is capable of correcting both phase error and range cell migration (RCM) in the post-PFA data domain. It is a robust way to estimate phase error by Map-drift (MD) method, including range-invariant and range-variant ones. What is more, the random characteristic of RCM is also taken into consideration to achieve a well aligned range profile data. Finally, series experimental results are listed to validate the proposal.
Keywords :
motion compensation; radar imaging; synthetic aperture radar; Map-drift method; PFA domain; high resolution spotlight SAR imagery; motion compensation algorithm; phase error; range cell migration; synthetic aperture radar; Apertures; Azimuth; Equations; Mathematical model; Radar imaging; Synthetic aperture radar; Map-Drift (MD); motion compensation (MoCo); polar format algorithm (PFA); spotlight synthetic aperture radar (SAR);
Conference_Titel :
Radar (Radar), 2011 IEEE CIE International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-8444-7
DOI :
10.1109/CIE-Radar.2011.6159556
