Title :
A New Doppler Parameters Estimation Algorithm for SAR Processing
Author :
Huili, Xu ; Xiaoling, Zhang ; JunXian, Li
Author_Institution :
Coll. of Electromech. Eng., HeNan Univ. of Sci. & Technol.
Abstract :
This paper presents a modified algorithm for the estimation of linear frequency modulated signal of synthetic aperture radar (SAR) raw data, which is based on phase unwrapping and polynomial fitting. On the mathematical model of SAR raw data, the paper analyzes the Doppler parameters estimation of the key problem to generate high quality SAR images, considering the raw signal is embedded in additive noise. The results of simulation show that the new method is reasonable and can make blind processing SAR raw data, and improve images quality
Keywords :
Doppler radar; parameter estimation; polynomials; radar imaging; synthetic aperture radar; Doppler parameters estimation algorithm; SAR images; additive noise; blind SAR data processing; linear frequency modulated signal estimation; phase unwrapping; polynomial fitting; synthetic aperture radar; Chirp modulation; Data analysis; Frequency estimation; Frequency modulation; Mathematical model; Parameter estimation; Phase estimation; Phase modulation; Polynomials; Synthetic aperture radar; Doppler parameters; phase unwrapping; polynomial fitting; radar image;
Conference_Titel :
Mechatronics and Automation, Proceedings of the 2006 IEEE International Conference on
Conference_Location :
Luoyang, Henan
Print_ISBN :
1-4244-0465-7
Electronic_ISBN :
1-4244-0466-5
DOI :
10.1109/ICMA.2006.257638
