摘要
GPS当丢失部分伪距不能正常定位时,采用广义延拓外推法外推伪距来实现对用户位置的定位。仿真结果和理论推理表明,这种伪距外推法在外推步数一定的条件下能满足用户接收机定位的要求。
When difficulty occurs in compute user＇s positions due to the loss of part of pseudoranges of GPS, the extended extrapolation can be used to extrapolate pseudorange to calculate users＇ positions. The simulation results and theoretical analysis show that this pseudorange extrapolating method meet positioning requirement of user receiver when extrapolating steps are not too big.
出处
《电子科技》
2006年第11期41-44,共4页
Electronic Science and Technology
关键词
卫星定位
伪距
广义延拓外推
satellite positioning
pseudorange
the extended extrapolation
