Title :
ISAR imaging with stepped-frequency chirp signal by de-chirping processing
Author :
Zhang, Yunhua ; Wu, Jie
Author_Institution :
Chinese Acad. of Sci., Beijing
Abstract :
Inverse synthetic aperture radar (ISAR) imaging with stepped-frequency chirp signal (SFCS) is simulated by de-chirping processing. Time-frequency analysis and image processing techniques are applied together for motion compensation. Detailed algorithm steps and imaging simulation for high-speed moving target with an acceleration as large as 30m/s2 are presented. Results indicate that SFCS signal has an much better performance than stepped-frequency continuous wave signal for imaging of target with ultra-high speed.
Keywords :
motion compensation; radar imaging; synthetic aperture radar; time-frequency analysis; ISAR imaging; de-chirping processing; image processing; inverse synthetic aperture radar imaging; motion compensation; stepped-frequency chirp signal; time-frequency analysis; Bandwidth; Chirp; Doppler radar; Frequency; Inverse synthetic aperture radar; Mathematical model; Motion compensation; Radar scattering; Signal processing; Synthetic aperture radar;
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.2007.4418706
