Title :
Imaging Simulation of Spacecraft by Ground Based High-Resolution ISAR
Author :
Zhang, Yunhua ; Jiang, Bitao ; Zhang, Xiangkun ; Jiang, Jingshan
Author_Institution :
Center for Space Sci. & Appl. Res., Chinese Acad. of Sci., Beijing
Abstract :
A novel method based on de-chirping technique for compressing stepped-frequency chirp signal (SFCS) was firstly introduced, and then applied to imaging simulation for a spacecraft by a ground based ISAR using SFCS. The echo signal model for an orbiting spacecraft (the Chinese Shenzhou Spacecraft) was analyzed by deriving the equivalent translational and rotational movement. Result showed that the spacecraft was clearly imaged with resolution as high as about 0.20 m
Keywords :
echo; image resolution; radar imaging; radar resolution; space vehicles; spaceborne radar; synthetic aperture radar; ISAR; SFCS; de-chirping technique; echo signal model; ground based high-resolution radar; imaging simulation; inverse synthetic aperture radar; orbiting spacecraft; stepped-frequency chirp signal compression; Chirp; Frequency; High-resolution imaging; Low earth orbit satellites; Optical imaging; Radar imaging; Radar tracking; Signal processing; Space vehicles; Spaceborne radar; Inverse synthetic aperture radar; de-chirping technique; radar imaging; spacecraft; stepped-frequency chirp signal;
Conference_Titel :
Radar Conference, 2006. EuRAD 2006. 3rd European
Conference_Location :
Manchester
Print_ISBN :
2-9600551-7-9
DOI :
10.1109/EURAD.2006.280316
