摘要
针对低轨星座目标连续跟踪传感器资源调度问题,通过提取跟踪精度、资源松弛度和资源分配均衡因子这三个优化参数,建立了传感器实时调度模型;并通过对跟踪精度及其影响因素的分析,提出了一种基于卫星目标几何关系的简化模型.仿真实验表明,简化模型有效降低了实时调度模型的运算量,且调度传感器对目标的跟踪精度没有明显降低,因而是一种更加高效的传感器调度模型.
To deal with the sensor resource scheduling in continual object tracking of low-earth orbit constellation,a real-time sensor scheduling model was established based on three parameters,i e.tracking precision,resource slack,and equilibrium factor;and then,according to the analysis of tracking precision and the factors that influence it,a simplified model based on the geometric relationship of satellites and objects was proposed.Simulation results indicated the that the calculation burden of the real-time scheduling model was reduced by the simplified model;moreover,the tracking precision of the simplified model wasn＇t reduced obviously.In a word,the proposed simplified model is a more efficient sensor scheduling model.
出处
《应用基础与工程科学学报》
EI
CSCD
2011年第2期335-344,共10页
Journal of Basic Science and Engineering
基金
国家部委资助项目(11301030101)
关键词
低轨星座
调度算法
模型
跟踪
low-earth orbit constellation
scheduling algorithms
models
tracking
