多元相关探测的改进与分析

Analysis and Modification on the Detection Probability of Correlation Detection

为了降低虚警概率,激光警戒接收机大多采用多元相关探测技术.通过对多元相关探测的数学分析发现尽管相关探测技术能降低接收机虚警概率,但它也降低了探测概率.基于同类传感器的数据融合理论,提出了多元相关探测的改进方法——在激光告警器的相关探测器中应用“KoutofN”规则.计算表明该方法既能有效地降低告警设备的虚警概率,又能提高探测概率.

Multiple-unit correlation detection is used to lower false alarm probability in most laser warning receivers. It is found that the correlation detection will reduce the detection probability of receiver by the mathematical analysis. Based on the theory of homogeneous sensor's data fusion, the modified method of the multiple-unit correlation detection is presented, which is that the rule of 'K out of N' applied in correlation detector of laser warning receiver. The calculating results indicate that the modified method can reduce effectively false alarm probability,and raise the detection probability in laser warning receiver.