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A new motion compensation method for ISAR based on time-frequency analysis and image processing
Wu Jie; Zhang Yun-hua; 北京8701信箱
Department国家863计划微波遥感技术实验室
Source Publication2005 asia-pacific microwave conference proceedings, vols 1-5
2005
Pages119-122
Language英语
ISBN0-7803-9433-X
AbstractIn this paper, a new motion compensation approach for inverse synthetic aperture radar (ISAR) is proposed based on time-frequency analysis and image processing to the time-frequency image. In the approach, the velocity estimation is obtained by traditional curve-fitting technique, but the acceleration estimation is obtained by image-processing technique and curve-fitting technique together. Image-processing technique is used to get the time-frequency distribution of a chosen range cell after initial velocity compensation, and curve-fitting technique is used again to get the slope, which is proportional to acceleration. Computer simulation shows the accuracy of the estimated motion parameters by the new approach is satisfied for ISAR imaging, although the simplest time-frequency analysis method, i.e. short time frequency transform (STFT) is used. At the same time, the method is very competitive in speed with others for real-time processing of ISAR data.
KeywordIsar Motion Compensation Time-frequency Analysis Image Processing
Conference NameAsia-Pacific Microwave Conference
Conference Date2005
Conference PlaceSuzhou, PEOPLES R CHINA
Indexed ByCPCI
Document Type会议论文
Identifierhttp://ir.nssc.ac.cn/handle/122/1779
Collection微波遥感部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
Wu Jie,Zhang Yun-hua,北京8701信箱. A new motion compensation method for ISAR based on time-frequency analysis and image processing[C]. NEW YORK:IEEE,2005:119-122.
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