GLONASS卫星信号模拟器设计与实现  

Design and implementation of GLONASS satellite signal simulator

作　　者：邓洪高[1] 王帅[1] 孙希延[1] 纪元法[1] 李银虎 

机构地区：[1]桂林电子科技大学信息与通信学院,广西桂林541004 [2]深圳市中冀联合通讯技术有限公司,广东深圳518000

出　　处：《桂林电子科技大学学报》2013年第3期200-204,共5页Journal of Guilin University of Electronic Technology

基　　金：国家自然科学基金(61062003;61162007;61271284;61261033)

摘　　要：针对GLONASS的特殊星历设计以及一般2阶数字频率合成方法难以满足卫星信号模拟器的精度问题,在分析GLONASS信号结构和传播模型的基础上,引入4阶Runge-Kutta数值积分外推法计算卫星位置,并设计高阶数字频率合成技术实现模拟器的信号生成。实验结果表明,4阶Runge-Kutta数值积分外推法具有较高的卫星位置计算精度。In order to solve the problem of the special GLONASS ephemeris, and the general 2-order digital frequency synthesis method is difficult to meet the precision of satellite signal simulator, the overall structure of GLONASS sat- ellite signal simulator is described on the base of analyzing GLONASS signal structure and propagation model. A design is involved includes The satellite position is calculated using 4-order Runge-Kutta numerical integration extrapolation, the simulator signal is generated using high-order digital frequency synthesis technology. Experimental results show the satellite position precision is high using 4-order Runge-Kutta numerical integration extrapolation.

关 键 词：信号模拟器 轨道积分 精确伪距 多阶DDS 

分 类 号：TN967.1[电子电信—信号与信息处理]