Title :
ISAR Ship Imaging Based on Reassigned Smoothed Pseudo Wigner-Ville Distribution
Author :
Wang Ran ; Jiang Yi-Cheng
Author_Institution :
Res. Inst. of Electron. Eng. Technol., Harbin Inst. of Technol., Harbin, China
Abstract :
According to the difference of motion characteristics between ship targets and the targets that move stationary, the application of a time-frequency distribution-Reassigned Smoothed Pseudo Wigner-Ville Distribution (RSPWVD) in ISAR imaging spectrum at ship target is studied. The high resolution instantaneous Doppler frequency spectra at a certain time instant is obtained by processing the radar echo data with RSPWVD, then the instantaneous ISAR image from that time instant is obtained. Results of real data show the validity of the method.
Keywords :
Doppler radar; Wigner distribution; radar imaging; radar resolution; synthetic aperture radar; ISAR ship imaging; instantaneous Doppler frequency spectra; inverse synthetic aperture radar; radar echo data; reassigned smoothed pseudo Wigner-Ville distribution; ship targets; Doppler effect; Doppler radar; Imaging; Marine vehicles; Radar imaging; Time frequency analysis;
Conference_Titel :
Multimedia Technology (ICMT), 2010 International Conference on
Conference_Location :
Ningbo
Print_ISBN :
978-1-4244-7871-2
DOI :
10.1109/ICMULT.2010.5631035
