Multi-Static ISAR Multiple Moving Target Imaging and Cross-Range Scaling

doi:10.3873/j.issn.1000-1328.2012.01.015

Journal of Astronautics ›› 2012, Vol. 33 ›› Issue (1): 107-112.doi: 10.3873/j.issn.1000-1328.2012.01.015

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Multi-Static ISAR Multiple Moving Target Imaging and Cross-Range Scaling

YUN Ri-sheng

(Center for Space Science and Applied Research，Chinese Academy of Sciences，
Beijing 100190, China)

Received:2011-01-06 Revised:2011-03-18 Online:2012-01-15 Published:2012-01-05

Abstract

Abstract: Based on echo model of multi-static ISAR multiple moving targets, the signal parameters of multiple moving targets are estimated and separated by employing time-frequency rate distribution analysis and CLEAN method. After the signal parameters and ISAR images correspond to multiple radars are obtained, the moving parameters of each target are estimated iteratively and then the cross-range scaling of each target is implemented. Furthermore, the constraints of multi-static ISAR multiple target imaging are analyzed. The multiple-static ISAR multiple moving target imaging and cross-range scaling algorithm are verified by simulation experiments.

Key words: ISAR, Multi-static, Multiple moving targets, Time-frequency rate distribution, ImaGing, Cross-range scaling

CLC Number:

TN958

YUN Ri-sheng. Multi-Static ISAR Multiple Moving Target Imaging and Cross-Range Scaling[J]. Journal of Astronautics, 2012, 33(1): 107-112.

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Multi-Static ISAR Multiple Moving Target Imaging and Cross-Range Scaling

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