在现代数字通信系统中,为了扩大信道的传输容量提高信号传输效率,常采用数字复接的技术。在分析了PCM30/32路系统基群信号帧结构的基础上,以EDA综合仿真设计软件QuartusⅡ8.0为开发平台,利用VerilogHDL硬件描述语言进行系统建模,设计了一种基于FPGA的同步数字信号复接系统。经过对系统的功能仿真测试及综合布局布线分析,验证了输入/输出的逻辑关系,实现了系统中在发送端进行数字复接和接收端同步分解还原的设计要求,功能稳定可靠。
In modern digital communication systems,multiplexing technology is extensively employed,so as to increase transmission efficiency by augmenting channel capacity.On the basis of analysis of primary group signal frame structure of PCM30/32-channel system,a FPGA based synchronous digital multiplexing system is designed,which takes EDA composite simulation design software Quartus II 8.0 as the development platform and performs modeling with Verilog HDL.Through simulations and analyses on functionality and routi...