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针对IS95码分多址蜂窝通信系统标准,给出了一种在从导引信道上提取信道参数并同时获取对载频频差的估计方案,给出了自动频率校正环路的设计方案,及其FPGA实现.该方案简单可行,硬件资源消耗少,且能明显改善移动台接收机的性能
Aiming at the standard of IS95 code division multiple access cellular communication system, an estimation scheme of extracting channel parameters from the pilot channel and obtaining carrier frequency offset at the same time is given. The design scheme of automatic frequency correction loop is given, And its FPGA implementation. The scheme is simple and feasible, consumes less hardware resources, and can obviously improve the performance of the mobile station receiver