多雷达融合检测中的分辨率匹配处理技术

利用多站雷达信号进行融合检测是提高对海监视能力的有效手段。针对不同分辨率雷达信号的融合检测问题,本文推导了低分辨雷达回波的过采样信号与高分辨率回波信号之间的相互关系,提出了由过采样回波重构高分辨信号的超分辨算法。由此将多分辨的雷达回波统一到相同的分辨率水平上,避免了因分辨率不匹配引起的融合检测性能的下降。仿真结果表明了该算法的有效性。

Technique of resolution matching processing for the fusion detection with narrow-band radars

Fusion detection for multi-static radar signal is an effective technique to improve the sea-surveillance ability.Aiming to the problem of fusion detection by multi-resolution radars,the relation between the over-sampled echoes of LRR( Low Range Resolution) radar and the critical samples of higher resolution signal is derived,and a super-resolution algorithm is presented to reconstruct the high- er resolution signal from the over-sampled echoes.Based on that,the multi-resolution echoes can be transformed into corresponding ones which hold the same resolution,and avoid the deterioration of fusion detection performance caused by the dismatching of range resolu- tion.The numerical results show that the algorithm is effective.