摘要
本文在基于GPS接收机输出数据的基础上,采用3级AR模型,预测下一时刻的GPS输出值,并与实际的输出值相比较,以一定的检测门限,判断当前时刻定位信息的可用性。通过仿真证明该方法的有效性,为GPS的可用性判定提供了一种方法。
Based on the output data of GPS, the paper introduces three-step series AR model to predict GPS output data of the next time ,then compares with the real output data of GPS. According to a certain detection threshold the method can judge the availability of GPS data. The simulation proves its effect and it provides a method of availability judgment of GPS data.
出处
《导航》
2006年第1期50-53,共4页
关键词
GPS定位信息
可用性
AR模型
实时判定
GPS Positioning Information
Availability
AR Model
Real-Time Judgment