摘要
研究了海上机动目标散布规律对反舰导弹目标搜捕具有的重要意义。在分析正态圆分布下目标以确定速度和均匀概略航向机动散布的内涵特征基础上,基于条件概率密度方法建立了CND-CS-ACUD散布概率密度模型,证明了该散布概率密度的对称特性。理论推导与数值分析表明:CND-CS-ACUD散布概率密度关于过航向分布范围角平分线的垂面对称;最大概率密度取值点必有一个位于航向分布范围角平分线上,与原点之间的距离小于、但随航向分布范围的压缩而趋近于目标机动距离;航向分布范围越小,高概率密度区域越集中,目标散布区域越小。CND-CS-ACUD散布对优化反舰导弹搜索参数、计算搜捕概率具有较强的应用价值。
Research the position distribution of marine moving target is significant in target acquisition of anti -ship missile. On basis of analyzing the connotation of target position distribution caused by certain speed（CS）and approximate course under uniform distribution （ACUD）in initial circular normal distribution（CND） ,CND-CS-ACUD distribution probability density model is built bymeans of conditional probability density. Symmetrical property of CND -CS -ACUD distribution is demonstrated. As a result of theoretical derivation and numerical analysis,CND-CS-ACUD distribution probability density is symmetrical on vertical spatial plane through angle bisector of course distribution range. The position point which gets maximum probability density of CND-CS -ACUD is located inangle bisector of course distribution range,and the distance between this point and the original point isless than target motion distance,but is more closely to target motion distance with more smaller course distribution range. High probability density area and target distribution area is more smaller when thecourse distribution range is more smaller. CND-CS-ACUD distribution can play an important role inoptimizing search parameters of anti-ship missile and computing target acquisition probability.
作者
侯学隆
姜青山
HOU Xuelong;JIANG Qingshan(Coastal Defense College,Naval Aviation University,Yantai 264001,China)
出处
《火力与指挥控制》
CSCD
北大核心
2018年第5期49-53,共5页
Fire Control & Command Control
基金
国家"973"安全重大基础研究基金资助项目(61331401)
关键词
海上机动目标
正态圆分布
均匀概略航向
概率密度
反舰导弹
marine moving target
circular normal distribution
approximate course under uniform distribution
probability density
anti-ship missile
