雷达组网协同探测试验航次数量设计改进

Design Modification on Number of Voyages for Radar Networking Cooperative Detection Test

雷达组网协同探测试验是在实际的外场环境下,利用实装飞机作为目标,测试两部同型雷达对目标协同探测的稳定跟踪距离。通过对传统航次数计算方法进行分析,发现其将距离取样间隔内检测概率的变化视为线性变化,当距离取样间隔增加时,数据评估的检测概率与实际雷达检测概率间出现明显误差,使得统计结果的可靠性下降,提出一种试验航次数量改进算法,该方法能够实时计算检测概率误差并进行修正,选择最佳距离取样间隔,在确保样本量的前提下获得合理的航次数量,节约了试验成本。

Radar networking cooperative detection test is to test stable tracking distance of two radars in same type by using real aircraft as a target in practical field environment.It is found that change of detection probability is regarded as linear variation within every distance sampling interval by analyzing traditional method of calculating number of voyages.When distance sampling interval is increased,occurrence of a significant error between detection probability of data evaluation and actual radar detection probability makes reliability of statistical results decrease.An algorithm for improving number of voyages is proposed,which can be used to calculate and correct error of detection probability in real time.By selecting optimum distance sampling interval,the rational number of voyages can be achieved and test cost can be saved in precondition of ensuring sample size.