一种高精度卫星导航模拟器本地数字中频载波生成方法

Local Digital IF Carrier Generation Method for High Precision Satellite Navigation Simulator

本文介绍了一种高精度卫星导航模拟器本地数字中频载波生成方法,提出了了相应的推导方法。仿真结果表明,文中给出的本地数字中频载波生成方法可以实现高精度跟踪大动态变化载波,其大动态载波跟踪部分的值在20ms间隔内与理论模型值之间的误差小于2.5×10-8 Hz。

In this paper, a generating method of local digital IF carrier for high precision satellite navigation simulator is introduced, and the corresponding derivation method is proposed. The simulation results show that the local digital IF carrier generation method presented in this paper can track the large dynamic change carrier with high precision. The error between the value of the large dynamic carrier tracking part and the theoretical model value within 20 ms interval is less than 2.5×10-8 Hz.