摘要
基于STK/matlab软件,提出了一种能够在复杂星空背景下模拟微弱点状运动目标序列星图的生成方法。首先,系统分析了背景星空模型的建立过程;然后,分析了影响点目标成像的扰动与噪声等因素,使得模拟仿真的序列星图更接近真实物理过程;同时,利用STK软件,对空间目标建模,预测观测卫星与地球同步轨道上空间目标的相对几何关系,并对高轨目标的可见性进行了系统的分析。给出了一种计算空间目标可见性判据的简便方法;最后,综合考虑了影响高轨目标可见性的各种因素,由STK生成空间目标轨道的预测数据,采用matlab程序对其进行了模拟仿真。对模拟空间目标检测、识别与跟踪的研究场景具有一定意义。
A method for sequence image generation of dim point moving targets in complex star background was presented based on STK/matlab software. Firstly, the starry background modeling process was analyzed; then, the satellite disturbance and noise that affected the point target imaging were detailedly discussed to make sequence images simulated closer to the real world; and besides the space target was modeled and its relative geometric relationship with the observation satellite was predicted by the STK software, at the same time the visibility of high earth orbit was systematically analyzed. In addition, a simple and convenient method to calculate the space target visibility criterion was given. By taking into account of various factors that impacted the visibility of high earth orbit target, the space target orbit prediction data was generated by STK and then matlab software was adopted to simulate the sequence image. It′s useful in providing space environment for detection and tracking space target.
出处
《红外与激光工程》
EI
CSCD
北大核心
2014年第9期3157-3161,共5页
Infrared and Laser Engineering
关键词
空间目标
序列星图
星空背景
可见性分析
蒙特卡罗
space target
sequence image
star background
visibility analysis
Monte Carlo
作者简介
刘夫成（1988-），男，硕士生，主要从事空间目标检测与识别方面的研究。Email：liufucheng@opt．cn
导师简介：刘朝晖（1965-），男，研究员，博士生导师，主要从事光电跟踪测量仪器总体技术方面的研究。Email：lzh@opt．ac．cn
