流水线式LDPC译码器的FPGA设计与仿真

Design and simulation of pipeline style LDPC decoder based on FPGA

LDPC码在深空通信中有很好的实用价值,同时LDPC码也被广泛应用于光纤通信、卫星数字视频和音频广播等领域。针对LDPC译码器提出一种新的设计思路,将流水线思想从译码算法本身扩展到译码器的整体设计中,设计出可以多帧并行且结构简单的译码器,最后从吞吐量和资源消耗两方面进行仿真验证。

LDPC code in deep space communication has very good practical value, and has been widely used in optical fiber communication, satellite digital video and audio broadcasting. A new method to design LDPC decoder is proposed. The idea of pipeline is abstracted from decoding algorithm and applied to the overall design of decoder. Based on this method,a decoder with simple structure,which can process multiple parallel frames,was designed. Its throughput and resource consumption were verified by simulation.