Title :
A new approach of Wigner-Ville distribution in moving targets parameters estimation of SAR
Author :
Zhiqin, Zhao ; Weiqiang, Zheng ; Shengli, Dai ; Shunji, Huang
Author_Institution :
Dept. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
Moving targets imaging is a very difficult problem in synthetic aperture radar (SAR). In this paper, the authors use the Wigner-Ville distribution (WVD) to estimate the parameters of moving targets. But because of the bilinearity of the WVD, cross-terms occur if the WVD is used in multitarget processing. In order to decrease the influence of cross terms and not increase computation loads, we preprocess the information of moving targets before using the WVD. Simulation results show the availability of this method
Keywords :
Wigner distribution; parameter estimation; radar imaging; radar signal processing; radar theory; synthetic aperture radar; time-frequency analysis; Wigner-Ville distribution; bilinearity; moving targets imaging; multitarget processing; parameter estimation; synthetic aperture radar; Availability; Azimuth; Computational modeling; Mathematical model; Mathematics; Object detection; Parameter estimation; Synthetic aperture radar; Time frequency analysis; Weather forecasting;
Conference_Titel :
Radar, 1996. Proceedings., CIE International Conference of
Conference_Location :
Beijing
Print_ISBN :
0-7803-2914-7
DOI :
10.1109/ICR.1996.574500
