Title :
Comparison of geometry-based Doppler ambiguity resolver in squint SAR
Author :
Li, Wenchao ; Huang, Yulin ; Yang, Jianyu ; Wu, Junjie
Author_Institution :
Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
Doppler centroid is an important parameter for high quality synthetic aperture radar (SAR) imaging. In this paper, several geometry-based Doppler ambiguity resolvers are discussed and compared. The result show that these methods can give accurate estimation of Doppler ambiguity number, and the speed of the iterative scheme and improved Radon transform scheme is much faster than conventional Radon transform method.
Keywords :
Doppler radar; Radon transforms; geophysical image processing; remote sensing by radar; synthetic aperture radar; Doppler ambiguity number; Doppler centroid; geometry based Doppler ambiguity resolver; improved Radon transform scheme; iterative scheme; squint SAR; synthetic aperture radar imaging; Doppler effect; Estimation; Flowcharts; Image resolution; Synthetic aperture radar; Time frequency analysis; Transforms; Doppler centroid estimation; Geometry-based estimator; Squint SAR;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2011 IEEE International
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4577-1003-2
DOI :
10.1109/IGARSS.2011.6050218
