天基非合作目标探测中的捕获概率模型  

Acquisition-probability model of noncooperative maneuvering target detection in space

作　　者：周彦平[1] 付森[1] 于思源[1] 王健[1] 王强[1] 冉启文[1] 严质斌[1] 

机构地区：[1]哈尔滨工业大学航天学院,黑龙江哈尔滨150001

出　　处：《红外与激光工程》2010年第4期639-643,共5页Infrared and Laser Engineering

基　　金：国家自然科学基金资助项目(60432040)

摘　　要：针对空间目标瞄准捕获系统中的捕获概率问题,在设计空间卫星光电探测平台时,采用常用的捕获方式进行建模,分析了空间光电探测系统在不确定区域中对不同机动目标的捕获概率。首先提出了空间机动目标的时间相关运动模型,然后以空间螺旋扫描的捕获方式为例,建立了捕获-目标的捕获概率模型。并且针对实际应用,取捕获分辨角范围为0.6～0.8 mrad,则对应的扫描角度间隔Iθ范围为0.42～0.702 mrad,设计了扫描、捕获的Monte-Carlo计算机仿真实验模型。经过5 000次捕获验证,得到了在不同时刻进入视场的任意方向的非合作目标的捕获概率模型,与室内捕获实验结果相符。为空间卫星光电目标捕获跟踪系统的设计提供了一定的理论依据。In order to deal with the acquisition-probability of pointing,acquisition,tracking（PAT） system on satellite-based photoelectric detection platform,a theoretical model of the acquisition was founded,the acquisition-probabilities of photoelectric detection system on satellite-based platform in uncertain region and difficult maneuvering conditions were analyzed.At first,the time-related movement model of space maneuvering target was proposed.Then,the spiral scan method was used to establish the model of acquisition-probability of target in space.At last,the Monte-Carlo simulation method was used to analyze the acquiring procedure,with resolution angle range from 0.6 mrad to 0.8 mrad,the scan angle range from 0.42 mrad to 0.702 mrad.The result shows that through 5 000 times,the theoretical model proposed in this paper is coincide with target acquisition of the actual situation in space.It provides theorical foundation for the design of photoelectric detection system on satellite-based platform.

关 键 词：捕获概率 不确定区域 机动目标 

分 类 号：TN929.11[电子电信—通信与信息系统]