窄带雷达高速多目标检测研究

Abstract

Abstract:

A serious range walk will result from the high speed of a target; and the low pulse repetition frequency will also result in cross-range undersampling, so the conventional Keystone transform will not be valid, these are disadvantageous for effective target energy accumulation. And it is also disadvantageous for multi-target detection due to their different range walk ratios. A method for narrowband radar detection for a high speed multi-target based on the clean technique is presented in case of the problems above. First, a Keystone transform will be applied to range compressed data and then we compensate the range walk function for which the target has the maximal energy. After that the quadratic phase term is searched for and subsequently compensated. Then a cross-range FFT is performed for detection, and finally the strongest target is filtered and the next potential target detected. Simulation results show that the proposed method is effective and applicable.

Key words: radar, narrowband detection, Keystone transform, targets

CLC Number:

TN957.51

SU Jun-hai;LI Ya-chao;XING Meng-dao. Research on narrowband radar detection for thehigh-speed multi-target[J].J4, 2009, 36(6): 1003-1009.

References

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Research on narrowband radar detection for thehigh-speed multi-target

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