摘要
该文介绍了循环汉明码的编译码原理,推导了一种无延迟编码电路的数学原理。在原有梅吉特译码器的基础上,提出了一种新的译码方法,该方法通过改进伴随式判别电路有效降低了译码延迟,并在FPGA硬件平台上进行了验证。测试结果表明,相较于传统梅吉特译码器,新译码方法的平均译码延时降低了一半,硬件资源增加较少。新译码方法极其适用于低延时通信场景,具有很高的实用价值。
The coding and decoding principle of cyclic Hamming code is introduced,and the mathematical principle of a nondelay encoding circuit is deduced. On the basis of the original Meggitt decoder,a new decoding method is proposed,which effectively reduces the decoding delay by improving the syndrome discrimination circuit,and it is verified on the FPGA hardware platform. The results show that the average decoding delay of the new decoding method is reduced by half compared with the traditional Meggitt decoder and the increase in hardware resources is small. The new decoding method is very suitable for low-latency communication scenarios and has high practical value.
作者
李壮壮
刘光祖
孙琳琳
邹骏
LI Zhuangzhuang;LIU Guangzu;SUN Linlin;ZOU Jun(School of Electronic and Optical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)
出处
《电子设计工程》
2022年第19期74-78,83,共6页
Electronic Design Engineering
