摘要
用计算机仿真方法 ,给出了单频卫星导航系统伪距差分后 ,定位误差受电离层影响的一些结果。伪距差分定位能够校正电离层时延误差 ,但校正精度随用户与基准站到同一颗卫星倾斜因子的不同而不同。为此 ,提出了一种改进的伪距差分方法。仿真结果表明 。
By means of computer simulation,this paper presents the results of the ionospheric effects on the pseudorange differential positioning in a single\|frequency satellite navigation system. The pseudorange differential positioning can calibrate the error of ionospheric time delay, but the ealibrating accuracy varies with the difference between the obliquity factors of the user to a satellite and the reference station to the same satellite.Thus, an improving pseudorange differential method is proposed. Simulation results show that the method is obviously effectual.
出处
《航空学报》
EI
CAS
CSCD
北大核心
1995年第5期628-631,共4页
Acta Aeronautica et Astronautica Sinica
基金
航空科学基金资助课题
关键词
卫星
无线电导航
电离层
航空
satellite\|radio navigation, ionospheres,time delay
