Title :
Reconstruction of ISAR imaging using time-frequency distribution series method
Author :
Jun, Peng ; Dan, Liu ; Guang-ming, Wang ; Haotian, Yuan
Author_Institution :
Air Force Eng. Univ., Sanyuan
Abstract :
The Fourier transform to retrieve Doppler information is used in conventional ISAR imaging. Due to the complex motion of a target, the image is usually blurred. In this paper the application of time-frequency distribution series (TFDS) in ISAR temporal imaging spectrum at maneuvering target is studied. The proposed TFDS is much better than STFT and WVD, which not only keeps good time-frequency concentration but also reduces the interference terms. Simulation data and real data prove this method can obtain clear radar instantaneous image for maneuvering target.
Keywords :
Doppler radar; Fourier transforms; image reconstruction; radar imaging; synthetic aperture radar; Doppler information; Fourier transform; ISAR imaging; time-frequency distribution series method; Density functional theory; Doppler radar; Fourier transforms; Geometry; Image reconstruction; Interference; Radar applications; Radar imaging; Reflectivity; Time frequency analysis;
Conference_Titel :
Synthetic Aperture Radar, 2007. APSAR 2007. 1st Asian and Pacific Conference on
Conference_Location :
Huangshan
Print_ISBN :
978-1-4244-1188-7
Electronic_ISBN :
978-1-4244-1188-7
DOI :
10.1109/APSAR.2007.4418624
