干扰和多径对低空目标检测概率的复合影响分析

摘要

基于多径和SwerlingⅡ目标模型，针对雷达探测低空目标受多径和干扰复合影响问题，研究了不同反射系数下和不同干扰程度下的检测性能，得出了多径条件下雷达受干扰检测概率计算式。仿真结果表明，雷达检测概率随着干扰有效辐射功率和干扰距离的增加而降低，多径在一定干扰功率和干扰距离内可提高检测概率的结论。%Due to the compound affect of muitipath and jamming while detecting low altitude target , the detec-tion performance with the different reflection coefficient and jamming level are studied and the detection probability computation formula with the jamming is given based on the the multipath model and Swerling Ⅱtarget model .The simulaiton rusults shows that the radar detection probability is lower with the increase of effective jamming power and jamming distance and multipath can enhance the etection probability at certain jamming power and jamming distance.