一种卫星信号载波频率精确估计算法

摘要

Aiming at the satellite signal carrier frequency high-precision estimation, the existing real-time frequency estimation methods are presented. Combing with Rife like frequency modificatory algorithm and considering the characteristics of satellite signal, the algorithm flow chat which is suitable for satellite signal carrier frequency high-precision estimation is proposed. Simulation result shows that it can improve the frequency estimation accuracy effectively.%针对卫星载波频率高精度估计问题,阐述了现有的频率估计实时处理方法,结合类Rife频率修正算法,并考虑卫星信号特点,给出了适用于数字方法实现的卫星信号载波频率高精度估计算法流程.对其进行了仿真实现,其结果表明,该算法能有效提高卫星信号载频估计精度.