基于ZYNQ的编译码通用高斯测试平台设计  

Design of Universal Encoding and Decoding Gaussian Test Platform Based on ZYNQ

作　　者：吴丹[1] 郭梦琪 WU Dan;GUO Mengqi(The 54th Research Institute of CETC,Shijiazhuang 050081,China;Science and Technology on Communication Networks Laboratory,Shijiazhuang 050081,China)

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081 [2]通信网信息传输与分发技术重点实验室,河北石家庄050081

出　　处：《无线电工程》2023年第2期465-470,共6页Radio Engineering

基　　金：国家部委基金资助项目。

摘　　要：针对硬件实现的编译码模块性能测试问题,开发了基于ZYNQ的编译码通用测试平台,对编译码性能进行快速验证。被测码字为5G NR标准下的低密度奇偶校验(Low-Density Parity Check,LDPC)码,联合采用Mersenne Twister算法和Box Muller算法生成高斯白噪声。该测试平台可以针对不同的编译码方案进行测试,同时可以灵活修改待测信噪比和调制方式,灵活性和扩展性强。在ZYNQ测试平台实现编码、映射、噪声加入、解映射、译码和误码率计算等数据处理全流程后,误码率结果与Matlab浮点理论仿真结果仅有0.2 dB的差距,验证了该测试平台的正确性和可靠性。To test the hardware implementation performance of encoding and decoding,an universal encoding and decoding test platform based on ZYNQ is developed.In this test platform,5G New Radio(NR)Low-Density Parity Check(LDPC)is applied,and the additive white Gaussian noise is generated by combining Mersenne Twister algorithm and Box Muller algorithm.This platform,which is of good flexibility and scalability,can test different types of encoding and decoding design scheme,and can flexibly change the signal to noise ratio to be tested as well as constellation mapping modes.After ZYNQ test platform realizes the whole process of coding,constellation mapping,adding noise,constellation demapping,decoding,and bit error rate calculation,testing results show that the bit error rate only has a performance gap of 0.2 dB comparing with the floating-point theoretical simulation generated by Matlab,which verifies the correctness and reliability of this test platform.

关 键 词：信道编码 高斯白噪声 ZYNQ 测试平台 

分 类 号：TN911[电子电信—通信与信息系统]