摘要
天基多星时差无源定位系统具有定位精度高、单星设备量小等优点,军事民用前景广阔。分析天基多星时差无源定位的原理,提出基于最大似然估计的定位算法,给出定位精度,并进行计算机仿真,验证了算法的有效性。该算法具有较高的工程应用价值。
The space-based multi-satellite passive time-delay of arrival(TDOA) positioning system has the advantages of high precision,simple equipments of each satellite,and so on.It can be widely used in the military and civil fields.In this paper,the basic theory of space-based multi-satellite passive TDOA positioning is analyzed,and the high precision of the maximum likelihood estimation(MLE) algorithm of TDOA positioning is given.The GDOP positioning error is calculated.The simulation results prove the validity of the positioning algorithm.
出处
《遥测遥控》
2007年第S1期108-112,共5页
Journal of Telemetry,Tracking and Command
