卫星信标差分载波相位测量TEC

Research on the TEC Based on Satellite Beacon Differential Carrier Phase Measurement

电离层电子总含量TEC广泛的应用于卫星定位、导航、通信等领域,所以精确求解TEC变得越来越重要。在精确求解TEC过程中存在三大误差来源:电离层模型误差;接收机硬件误差;GPS卫星硬件误差。该文通过改进接收机电路结构的方法来提高在卫星信标差分载波相位测量中相位的精确度,进而达到精确求解TEC的目的。该文采用多周期同步法来测量载波的相位差。

Today total content TEC of Ionized layer electron widespread application in satellite positioning,guidance,correspondence domains and so on,therefore solves TEC precisely is more and more important.There are three sources of error during the process of solves TEC exactly:The error of Ionospheric model;Hardware error of Receiver;Hardware error of GPS satellites.In this paper,the methods to improve the receiver circuit be used to increase the phase measurement accuracy in the satellite beacon differential carrier phase,then it can be used to accurate solve TEC.The method of multi-cycle synchronization be used to measure the phase difference in this paper.