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Analysis of Target Identification Performances Using Bistatic ISAR Images

바이스태틱 ISAR 영상을 이용한 표적식별 성능 분석

  • Received : 2016.04.19
  • Accepted : 2016.06.22
  • Published : 2016.07.07

Abstract

Inverse synthetic aperture radar(ISAR) image generated from bistatic radar(Bi-ISAR) represents two-dimensional scattering distribution of a target, and the Bi-ISAR can be used for bistatic target identification. However, Bi-ISAR has large variability in scattering mechanisms depending on bistatic configurations and do not represent exact range-Doppler information of a target due to inherent distortion. Thus, an efficient training DB construction is the most important factor in target identification using Bi-ISARs. Recently, a database construction method based on realistic flight scenarios of a target, which provides a reliable identification performance for the monostatic target identification, was applied to target identification using high resolution range profiles(HRRPs) generated from bistatic radar(Bi-HRRPs), to construct efficient training DB under bistatic configurations. Consequently, high identification performance was achieved using only small amount of training Bi-HRRPs, when the target is a considerable distance away from the bistatic radar. Thus, flight scenarios based training DB construction is applied to target identification using Bi-ISARs. Then, the capability and efficiency of the method is analyzed.

Keywords

Bistatic Radar;Database Construction;ISAR Image;Target Identification

References

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Acknowledgement

Grant : 기초연구

Supported by : 포항공과대학교