CAJ | 학술논문

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。
설계병실현료일충기우FPGA적연건무선전동보계통，포괄재파동보、위동보화정동보。해동보계통가이통과설치상관삼수，여Costas배중적NCO중심빈솔、상차계산공제삼수、려파기삼수、위동보화정동보적분빈기계수즉가실현교관빈솔범위내적접수궤동보。급출상응적방진여실제측시，험증설계적정학성。
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.