Spatial Target Detection Based on th

Spatial Target Detection Based on the Measurement of Equivalent Blackbody Temperature

At low SNR cases, the distinction between spatial point-target and interferences as decoys is still a very difficult problem. Based on the characteristics that target and interferences as decoys and noise had different radiation intensity and radiation changing frequency, the concept of the equivalent blackbody temperature (EBT) was built and the calculation model of EBT was designed. The model could effectively reduce the interference of the space environment and fully show the radiation differences between point-target and interferences as decoys. It would be very effective in the detection of the target. In order to detect the target, the effective estimator of EBT was designed according to the observed data, and the system error and the variation range of the estimator of EBT were estimated. Finally the multi-frame estimator was designed to improve the estimation stability of EBT, and the use of this estimator would identify the point-target more effectively.

作 者： ZHOU Yan-ping SHU Rui LU Chun-lian   作者单位： School of Astronautics, Harbin Institute of Technology, Harbin 150001,China  刊 名： 北京理工大学学报（英文版）  EI 英文刊名： JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY  年，卷(期)： 2010 19(2)  分类号： V557.4  关键词： spatial point-target   decoy   noises   equivalent blackbody temperature (EBT)  

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