可配置的高码率Turbo码编译码器的设计及实现  

Design and Implementation of Configurable High Rate Encoder and Decoder for Turbo Code

作　　者：宋惠轩 郭嘉 潘雅茹 SONG Huixuan;GUO Jia;PAN Yaru(No.50 Institute of CETC,Shanghai 200331,China)

机构地区：[1]中国电子科技集团公司第五十研究所,上海200331

出　　处：《通信技术》2023年第3期383-390,共8页Communications Technology

摘　　要：Turbo码是一种高效纠错编码技术,其性能可以接近香农极限。由于Turbo码在低信噪比情况下性能优越,同时还拥有较强的抗衰落、抗干扰能力,已被广泛用于信道编码领域。采用可配置的编译码结构,在现场可编程逻辑门阵列(Field Programmable Gate Array,FPGA)实现高码率Turbo码编译码器时,实现较强的数据处理能力和较少的硬件资源占用,并可根据使用场景的不同进行译码参数配置,在Turbo码纠错时间及纠错精度之间寻求平衡。经过ModelSim仿真以及在Artix-7平台上实验,验证了Turbo译码可配置编译码实现的可行性和有效性。Turbo code is an efficient error-correcting coding technique that can approach the Shannon limit in performance.Turbo code is widely used in channel coding because of its superior performance at low SNR,as well as its strong anti-fading and anti-interference capabilities.In this paper,a configurable encoding and decoding structure is adopted.When implementing a high rate Turbo encoding and decoding in FPGA(Field Programmable Gate Array),it achieves stronger data processing capability and less hardware resource consumption,and the decoding parameters can be configured according to different scenarios,thus finding a balance between error correction time and error correction accuracy of Turbo code.The feasibility and effectiveness of Turbo encoding and decoding is verified by ModelSim simulation and Artix-7 experiment.

关 键 词：TURBO码 迭代译码 高码率通信 差错检测编码 

分 类 号：TN911.22[电子电信—通信与信息系统]