基于小样本的雷达探测距离数据统计方法

Statistical method of radar detection range data based on small sample

为了对小样本条件下机载火控雷达探测距离指标作出合理的验证,并且节约试验成本,本文在分析常用雷达探测距离评定方法不足的基础上,针对雷达探测距离试验的特点,提出了利用数理统计中的t分布理论,按t分布方法对雷达探测距离进行了估计,得到雷达探测距离分布符合非中心t分布特征,同时对试验样本量进行了预测。雷达探测距离的小子样￡分布检验法,既能够达到减少飞行试验架次,试验结果也可信。实践证明,该方法有明显的优越性和应用前景。

In order to make a reasonable verification on the condition of small samples of airborne fire control radar detection range index,and save the cost of test,based on the analysis of the commonly used evaluation method of radar detection range is insufficient,according to characteristics of radar detection distance test,put forward using t distribution theory in mathematical statistics,according to the radar detection range was estimated t distribution method,radar detection distance distribution with t distribution center,while the test sample is predicted.The radar detection distance of small sample t distribution test method,which can reduce flight test vehicles,test results are credible.Practice has proved that the method has obvious advantages and application prospects.