Title :
A novel method of ISAR imaging for high speed targets using stepped-frequency chirp waveform
Author :
Zhao, Lizhi ; Mu, Jianchao ; Fu, Xiong Jun ; Gao, Meiguo
Author_Institution :
Sch. of Inf. & Electron., Beijing Inst. of Technol., Beijing, China
Abstract :
In this work, a method of ISAR imaging is proposed for high speed targets using stepped-frequency chirp signal. Keystone formatting is applied among pulses which have identical carrier frequency to eliminate range migration. The range-Doppler coupling and range-profile broadening is compensated by means of processing via Doppler channel division. Simulation results demonstrate the effectivity and adaptability in low SNR condition.
Keywords :
Doppler radar; radar imaging; synthetic aperture radar; Doppler channel division; ISAR imaging; high speed targets; keystone formatting; range migration elimination; range-Doppler coupling; range-profile broadening; stepped-frequency chirp waveform; synthetic aperture radar; Chirp; Doppler effect; Image resolution; Imaging; Radar imaging; Signal to noise ratio; ISAR; Keystone formatting; stepped-frequency;
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.2011.6159871
