在奈曼-皮尔逊检测准则下,以目标截面积的统计模型服从χ2分布为基础,着重研究了有源MIMO模式网络雷达对抗系统在多脉冲条件下的检测性能,给出了慢起伏和快起伏χ2分布目标模型下虚警概率和检测概率表达式,并对不同条件下的检测性能进行了仿真分析。理论与仿真分析表明,有源MIMO模式网络雷达对抗系统对慢起伏χ2分布目标的检测性能优于快起伏χ2分布目标;同时,随着脉冲积累数和自由度的增加,慢起伏与快起伏χ2分布目标的检测性能都得到了

According to the principle of Neyman-Pearson, the detection performance of the active MIMO mode of NRCS on the classicχ2statistic target model is analyzed based on multiple pulses. Then the false alarm probability and detection probability of slow and fast fluctuationχ2target are presented theoretically and the detection performance under different condition is simulated. The results of theory analysis and simulation have shown that the detection performance of the active MIMO mode of NRCS on slow fluctuationχ2 target outperforms that on fast fluctuationχ2 target. Moreover, with the increase of free degree and the num of accumulation pulses, the active MIMO mode of NRCS can get better detection performance on the classicχ2 statistic target.