Title :
Two-dimensional radar imaging based on instant range profile
Author :
Yi´an, Zhang ; Zhiping, Yin ; Weidong, Chen ; Dongjin, Wang
Author_Institution :
Univ. of Sci. & Technol. of China, Hefei
Abstract :
To solve the problem of range dispersion of the dechirped echo caused by high-velocity radial motion, an improved method based on instant range-Doppler (IRD) is proposed. Firstly, a target echo model illuminated by wideband linear frequency modulated radar signal is built. Then the effect of high velocity on the target echoes is analyzed. On the feature of the orbit target with high radial velocity, a method based on instant range profile using the short-time Fourier transform (STFT) is presented. It is proved effective by computer simulation results.
Keywords :
Doppler radar; Fourier transforms; radar cross-sections; radar imaging; Fourier transform; high-velocity radial motion; instant range profile; instant range-Doppler method; target echo model; two-dimensional radar imaging; wideband linear frequency modulated radar signal; Chirp modulation; Distortion; Fourier transforms; Motion compensation; Radar imaging; Signal resolution; Spaceborne radar; Time frequency analysis; Two dimensional displays; Wideband; ISAR; Imaging of high velocity target; Instant Range-Doppler; STFT;
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.2007.4418598
