基于FPGA的CDMA调制/解调技术的研究与实现

摘要

In order to meet the needs of underwater acoustic communication system,the modulation/ demodulation module of CDMA technology based on FPGA was designed. The m sequence is used as spread spectrum code and BPSK is taken as the modulation mode. Each functional module was achieved and CDMA modulation / demodulation function was completed on EP3C10e144c8n. The simulation results show that the system works properly and stably. The CDMA modulation / demodulation module will be applied to underwater acoustic communication system.%基于水声通信系统的需求，设计了基于FPGA的CDMA技术的调制/解调模块，选用m序列作扩频码，BPSK作为调制方式。该设计在EP3C10E144C8N芯片上，实现了各个功能模块，完成了CDMA调制/解调功能，仿真结果表明该设计功能正常并且工作稳定。CDMA调制/解调模块将应用于水声通信系统。