摘要
研究海上机动目标散布规律对反舰导弹目标搜捕决策具有重要意义。在分析正态圆分布下目标以确定速度和正态概略航向机动引起的组合散布基础上,基于条件概率密度方法建立了CND-CS-ACND散布概率密度模型,证明了该散布概率密度的对称特性;研究了给定概率下CND-CS-ACND散布圆的二分法迭代计算流程,基于"滑动窗"原理和区域概率累加特性优化了计算模型。基于CND-CS-ACND散布特性的仿真分析,提出了反舰导弹对概略航向机动目标的准前置点射击方法,即瞄准以目标散布概率密度最大取值点为中心的散布圆射击,与现在点射击方法相比,可显著减小末制导雷达角度与距离搜索范围。
The position distribution of marine moving target is significant in target acquisition decision- making for anti-shipmissile. On basis of analyzing the connotation of target position distribution caused by certain speed（CS） and approximatecourse under normal distribution （ACND） in initial circular normal distribution（CND）, CND-CS-ACND distribution probability density model is built by means of conditional probability density. Symmetrical property of CND-CS-ACND distributionis demonstrated. Iterative computation process for CND-CS-ACND distribution area is discussed under given probability basedon dichotomy algorithm, and sliding window method and probability accumulation property are applied to improving greatly iterative computation efficiency. Pre-ahead point shooting method is put forward based on simulation analysis of the CND-CS-ACND distribution properties, which can reduce obviously angle search range and distance search range for terminal guidingradar.
作者
侯学隆
王宗杰
姜青山
HOU Xue-long;WANG Zong-jie;JIANG Qing-shan(Naval Aeronautical University,Yantai 264001,China)
出处
《指挥控制与仿真》
2018年第6期53-59,共7页
Command Control & Simulation
基金
"973"国家安全重大基础研究项目(61331401)
关键词
海上机动目标
正态圆分布
正态概略航向
概率密度
目标搜捕
散布区
marine moving target
circular normal distribution
approximate course under normal distribution
probabilitydensity
target acquisition
uncertain distribution area
