在海域红外杂波背景中小目标探测的空间匹配滤波技术

MATCHED SPATIAL FILTERING TECHNIQUE FOR SMALL TARCET DETECTION IN IR CLUTTER BACKGROUND CONTAINING SEA AREA

利用空间匹配滤波技术，针对海域复杂的红外杂波背景进行了小目标探测．由计算机模拟获得了滤波器设计参数，结果表明滤波后信杂比增益有显著提高，虚警率随之下降，滤波算法硬件易于实现，证明这是一种抑制红外背景杂波的有效技术．

By using matched spatial filtering technique, small targets are detected against the complicated IR clutter background containing sea area. By means of computer simulation, the filter design parameters are obtained. After filtering, the signalto-clutter ratio gain is boosted markedly and the false alarm probability is decreased accordingly; the filter's hardware can be realized easily. This proves to be an effective technique to reject IR background clutter.