预警卫星半实物仿真系统设计与实现

Design and Implementation of Semi-physical Simulation for Early Warning Satellite

国防支援计划(DSP)是美国现役的预警卫星系统,主要对导弹进行早期探测和预警;为评估DSP卫星对目标的探测能力,文中分析了预警卫星的部署情况和工作模式,提出了预警卫星仿真系统的总体设计方案,确定该系统的功能模块以及实现方式;根据预警卫星双波段探测的工作模式构建了红外双色扫描探测模型,提出了基于双霍夫变换的多帧关联目标检测算法,利用目标的运行特性有效去除背景噪声,并结合双波段探测信息融合策略降低卫星虚警率;最后利用双星定位方法预估目标轨迹并对不同发射角目标的预测轨迹与真实轨迹之间的误差进行对比分析;通过试验运行,该系统达到了预期结果,具备对目标导弹的探测和跟踪能力,为导弹性能评估提供一种仿真手段和依据。

The Defense Support Program(DSP)is a US active early warning satellite system that conducts early detection and early warning of missiles.In order to analyze the target detecting ability of DSP satellites,this paper analyzes the deployment situation and working mode of the early warning satellite,and proposes the general framework of the early warning satellite simulation system which determines the functional modules and the realization mode of the system.According to the double-band detection mode of the early warning satellite,this paper proposed an infrared two-color scanning detection model.In this model,First a multi-frame correlation target detection algorithm based on double-Hough transform is proposed,which can effectively remove the background noise,then combines the information fusion strategy reducing the false alarm rate,and finally using double-star positioning function to estimate the trajectory of target,in the meantime the error between the predicted trajectory and the real trajectory is analyzed.This simulation system has gets the expected results,having the capabilities for detection and tracking the missile,and provide a means of simulation and basis for performance evaluation.