Title :
Inverse Synthetic Aperture Radar Imaging at Low Signal-to-noise Ratio
Author :
Ju, Yanwei ; Yu, Li ; Wang, Yang ; Chu, Xiaobin
Author_Institution :
Nanjing Res. Inst. of Electron. Technol., Nanjing, China
Abstract :
Inverse synthetic aperture radar (ISAR) imaging at low SNR ratio is not resolved completely. The SNR increases in time-frequency domain over the one in the time or the frequency domain alone both theoretically and numerically. This shows advantage of time-frequency analysis technique for ISAR imaging at low SNR. The reassigned Gabor spectrogram time-frequency distribution is proposed for ISAR imaging at low SNR. Finally, the real data demonstrated the validity of the method proposed.
Keywords :
radar imaging; synthetic aperture radar; time-frequency analysis; inverse synthetic aperture radar imaging; reassigned Gabor spectrogram; signal-to-noise ratio; time-frequency domain; Imaging; Radar imaging; Signal resolution; Signal to noise ratio; Time frequency analysis; Transforms; ISAR imaging; Low Signal-to-noise Ratio; Reassigned Gabor spectrogram time-frequency distribution;
Conference_Titel :
Artificial Intelligence and Computational Intelligence (AICI), 2010 International Conference on
Conference_Location :
Sanya
Print_ISBN :
978-1-4244-8432-4
DOI :
10.1109/AICI.2010.145
