DocumentCode :
3561064
Title :
Rotation Estimation for ISAR Targets With a Space–Time Analysis Technique
Author :
Yeh, Chun-mao ; Yang, Jian ; Peng, Ying-Ning ; Shan, Xiu-ming
Author_Institution :
Tsinghua Univ., Beijing, China
Volume :
8
Issue :
5
fYear :
2011
Firstpage :
899
Lastpage :
903
Abstract :
A new method for estimating the rotational motion of a noncooperative target is presented by exploiting the 2-D space-variant characteristic of inverse synthetic aperture radar imaging. With a space-time analysis technique, the position variation of every extracted scattering center in both the range and cross-range directions can be utilized for rotation estimation. This method differs substantially from conventional methods that exploit high-order terms of the Doppler frequency, i.e., only the position variation in the cross-range direction. An iterative processing scheme is proposed to extract as many scattering centers as possible from the phase history of returned echoes. Experimental results with some measured airplane data demonstrate the effectiveness of the proposed method.
Keywords :
Doppler radar; iterative methods; motion estimation; radar imaging; synthetic aperture radar; target tracking; Doppler frequency; ISAR targets; inverse synthetic aperture radar imaging; iterative processing; noncooperative target; rotation estimation; space-time analysis technique; Bandwidth; Data mining; Estimation; History; Imaging; Radar imaging; Scattering; Inverse synthetic aperture radar (ISAR); rotation estimation; space–time analysis (STA);
fLanguage :
English
Journal_Title :
Geoscience and Remote Sensing Letters, IEEE
Publisher :
ieee
Conference_Location :
5/5/2011 12:00:00 AM
ISSN :
1545-598X
Type :
jour
DOI :
10.1109/LGRS.2011.2132752
Filename :
5763760
Link To Document :
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