DocumentCode :
3677493
Title :
Complex trajectory millimeter-wave InSAR interferometry using maximum sharpness BP autofocusing algorithm
Author :
Shunjun Wei;Xiaoling Zhang;Jun Shi;Hu Kebin;Zhang Bojun
Author_Institution :
E.E Department, University of Electronic Science and Technology of China, Chengdu, Sichuan, P. R. China
fYear :
2015
Firstpage :
67
Lastpage :
71
Abstract :
Due to platform uncertain motion, the trajectory of airborne millimeter-wave interferometric synthetic aperture radar (MMW-InSAR) usually demonstrates highly non-linear associated with position errors. Hence, motion compensation must be considered for airborne MMW-InSAR high resolution imaging. In this paper, a back projection (BP) autofocusing algorithm via maximum sharpness is presented for MMW-InSAR interferometry in the case of complex trajectory with motion errors. In the scheme, the MMW-INSAR data is focusing by BP along the complex trajectory, and the azimuth phase errors is estimated from the dominant scatterering area using an iterative procedure, which aims to maximizing the InSAR image sharpness. The effectiveness of the proposed method is testified by the experiment data, the results demonstrate that it can improve MMW-InSAR imaging quality compared with conventional BP algorithm in the case of complex trajectory.
Keywords :
"Trajectory","Optimized production technology","Synthetic aperture radar","Focusing","Azimuth","Radar imaging"
Publisher :
ieee
Conference_Titel :
Synthetic Aperture Radar (APSAR), 2015 IEEE 5th Asia-Pacific Conference on
Type :
conf
DOI :
10.1109/APSAR.2015.7306156
Filename :
7306156
Link To Document :
بازگشت