雷达动态精度快判方法研究  

Research on rapid evaluation method of radar dynamic accuracy

作　　者：赵忠文 张旭 宫福红 卜德锋 卢迪 ZHAO Zhongwen;ZHANG Xu;GONG Fuhong;BU Defeng;LU Di(Science and Technology on Complex Electronics System Simulation Laboratory,Space Engineering University,Beijing 101416,China;Unit 63895 of PLA,Mengzhou 454750,China;Unit 63893 of PLA,Luoyang 471000,China;Unit 63650 of PLA,Urumqi 830000,China)

机构地区：[1]航天工程大学复杂电子系统仿真实验室,北京101416 [2]63895部队,河南孟州454750 [3]63893部队,河南洛阳471000 [4]63650部队,新疆乌鲁木齐830000

出　　处：《中国测试》2023年第12期101-107,共7页China Measurement & Test

摘　　要：为提高雷达动态精度评估工作效率,首先针对基于误差分组的原有精度统计方法只能适用于事后处理、自动化程度低的问题,在数据录取频率不小于20 Hz条件下,给出一种基于中值的雷达瞬时精度估计方法,简化精度统计相关过程;然后给出一种双门限精度快判方法,用精度指标和超标率两个门限,在测量过程中分两步对雷达瞬时精度进行评定;最后针对典型精度指标在其他情形下或直接用于评定雷达瞬时精度时适用程度下降的问题,提出一种雷达精度指标实时等效换算构想。典型实测数据测试表明,实时换算精度指标更能反映随着目标位置等因素变化雷达精度自身的起伏变化,用它对某高低角随机误差瞬时精度进行快判时,超标点数为0,避免用典型精度指标进行快判时因雷达精度正常起伏变化造成的538个误判超标点。In order to improve the efficiency of radar dynamic accuracy evaluation,firstly,aiming at the problem that the original accuracy statistics method based on error grouping has low automation and can only be applied to post-processing,a radar instantaneous accuracy estimation method based on median is proposed under the condition that the data acquisition frequency is not less than 20 Hz,which simplifies the relevant process of accuracy statistics;Then,a double threshold accuracy fast judgment method is given.The instantaneous accuracy of radar is evaluated in two steps in the measurement process by using two thresholds:accuracy index and over standard rate;Finally,aiming at the decline of the applicability of typical accuracy indexes in other cases or when they are directly used to evaluate the instantaneous accuracy of radar,a concept of real-time equivalent conversion of radar accuracy indexes is proposed.The test with typical measured data shows that,the real-time conversion accuracy index can better reflect the fluctuation of radar accuracy with the change of target position and other factors.When using it to quickly judge the instantaneous accuracy of elevation angle random error,the number of over standard points is 0,avoiding 538 misjudged over standard points caused by the normal fluctuation of radar accuracy when using the typical accuracy index.

关 键 词：雷达 动态精度评估 中值估计 精度指标换算 误差分组 

分 类 号：TB9[一般工业技术—计量学]