Title :
Analysis and extraction of micro-doppler features in FMCW-ISAR using a Modified Extended Hough Transform
Author :
Liang, Ying ; Bai, Peng ; Zhang, Qun ; Zhu, Xiao-peng ; Wang, Min
Author_Institution :
Inst. of Telecommun. Eng., Air Force Eng. Univ., Xi´´an, China
Abstract :
The micro-Doppler (m-D) features of targets based on the FMCW-ISAR is analysed in this paper. The influence of the Doppler frequency shift induced by the target´s continuous moving in pulse repetition interval (PRI) is discussed, and then a method named Modified Extended Hough Transform is proposed to extract the parameters of m-D features from the spectrogram. The simulation experiment validates the theoretical conclusions in m-D features analysing, and m-D features extraction.
Keywords :
CW radar; Doppler shift; FM radar; Hough transforms; synthetic aperture radar; Doppler frequency shift; FMCW-ISAR; frequency modulated continuous wave synthetic aperture radar; micro-Doppler feature extraction; modified extended Hough transform; pulse repetition interval; spectrogram; Feature extraction; Mathematical model; Polynomials; Radar; Spectrogram; Transforms; Doppler frequency shift; FMCW-ISAR; Modified Extended Hough Transform; micro Doppler features;
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.2011.6159883
