基于特征选择检验的交会数据相似度验证方法

摘要

To solve the problem that there is no uniform quantitative standard for radio fuze semi-physical simu-lation of missile-target encounter data,a method of radio fuze encounter data similarity verification was proposed based on feature elective validation.This method figured out the amplitude difference measure and the feature difference measure respectively,which were weighted sum to get the global difference measure that was conver-ted into a percentage similarity.Verification indicates that compared with the correlation coefficient,this method synthesized the feature information of time domain and frequency domain of missile-target encounter data,mak-ing the result more close to the true value.The feature selective validation method was not only applicable to the data comparison and analysis for missile-target encounter in the air,but also applicable to the similarity assess-ment for the missile-target encounter data on the ground which was of a poor signal-to-clutter radio.%针对无线电引信半实物仿真弹目交会数据的相似度评定缺乏统一的定量标准的问题，提出基于特征选择检验的无线电引信交会数据相似度验证方法。该方法分别统计幅值差异估量和要素差异估量，进行加权求和，得到全局差异估量，并转换成相似度百分比。验证表明，与相关系数相比，该方法综合了弹目交会数据的时域和频域特征信息，其结果更为接近真实值。特征选择检验方法不仅适用于空中目标弹目交会数据的比对和分析，对信杂比较差的大脱靶量地面目标弹目交会数据的相似度评估也较为适合。