GPS接收机PLL与卡尔曼跟踪环路性能分析

本文重点研究传统 PLL 环路和卡尔曼跟踪环路理论性能分析方法，理论上分析比较两种跟踪环路的跟踪灵敏度和动态应力性能，并通过 GPS 软件接收机仿真验证得出结论，相对于 PLL 环路，卡尔曼跟踪环路灵敏度最大可提高 3dB 左右，动态性能最大可提高 27g/s 左右。

Performance Analysis on PLL and Kalman Tracking Loop of GPS Receiver

This paper focuses on the theoretical performance analysis method of the traditional PLL and Kalman tracking loop. The sensitivity and dynamic stress of the two kinds of tracking loops are analyzed in theory. Through the simulation of GPS software receiver, it is concluded that the sensitivity of Kalman tracking loop can be improved about 3dB, and the dynamic performance can be improved about 27g/s, compared with PLL.