基于FPGA的软件无线电同步系统设计与实现

摘要

A synchronization system of software radio system was designed and implemented based on FPGA, including the carrier synchronization,bit synchronization and frame synchronization. The synchronization system can achieve receiver synchronization in a wider frequency range, by setting the related parameter, such as the NCO center frequency of Costas loop,difference calculation control parameters and the parameters of the filter,the divider coefficient of bit synchronization and frame synchronization. The related simulation and practical test has proved the correctness of the design.%设计并实现了一种基于FPGA的软件无线电同步系统，包括载波同步、位同步和帧同步。该同步系统可以通过设置相关参数，如Costas环中的NCO中心频率、相差计算控制参数、滤波器参数、位同步和帧同步的分频器系数即可实现较宽频率范围内的接收机同步。给出相应的仿真与实际测试，验证设计的正确性。