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电离层对单频卫星导航系统伪距差分定位的影响
引用本文:宋茂忠,王永澄.电离层对单频卫星导航系统伪距差分定位的影响[J].航空学报,1995,16(5):628-631.
作者姓名:宋茂忠  王永澄
作者单位:南京航空航天大学4系!南京,210016,南京航空航天大学4系!南京,210016
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 ,改进后有明显效果

关 键 词:卫星-无线电导航  电离层  延时  

IONOSPHERIC EFFECTS ON THE PSEUDORANGE DIFFERENTIAL POSITIONING IN A SINGLE-FREQUENCY SATELLITE NAVIGATION SYSTEM
Song Maozhong,Wang Yongcheng.IONOSPHERIC EFFECTS ON THE PSEUDORANGE DIFFERENTIAL POSITIONING IN A SINGLE-FREQUENCY SATELLITE NAVIGATION SYSTEM[J].Acta Aeronautica et Astronautica Sinica,1995,16(5):628-631.
Authors:Song Maozhong  Wang Yongcheng
Institution:Fourth Department of Nanjing University of Aeronoutics and Astronautics,Nanjing,210016
Abstract: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.
Keywords:satellite\|radio navigation  ionospheres  time delay
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