摘要
基于GPS接收机输出数据,采用3级AR模型来预测下一时刻的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 receiver, three-step series AR model is adopted to predict GPS output data of the next time,and the predict GPS output data is compared with the real output data of GPS. According to certain detection threshold, the method can judge the availability of current GPS positioning data. The simulation proves its effect and it provides a method of availability judgment of GPS data.
出处
《航天电子对抗》
2006年第3期12-13,64,共3页
Aerospace Electronic Warfare
关键词
GPS定位信息
可用性
AR模型
实时判定
GPS positioning i nformation
availability
AR model
real-time judgment
