Influence of channel nonlinearity on high-speed data demodulation performance based on simulator

Proceedings of the 2021 5th International Conference on Electronic Information Technology and Computer Engineering Pub Date : 2021-10-22 DOI:10.1145/3501409.3501661

Zheshuai Zhou, Hongbing Fang, Yubo Tang, Yan Li, Jiuzhou Zhao, Hui Zhang

{"title":"Influence of channel nonlinearity on high-speed data demodulation performance based on simulator","authors":"Zheshuai Zhou, Hongbing Fang, Yubo Tang, Yan Li, Jiuzhou Zhao, Hui Zhang","doi":"10.1145/3501409.3501661","DOIUrl":null,"url":null,"abstract":"This paper mainly studies the influence of channel nonlinearity on the high-speed demodulation performance of satellite with 2/3 LDPC encoding and 600Mbps speed. Through the design of a channel simulator-based test plan, a single channel characteristic test is carried out, focusing on the analysis of the impact of the amplitude-frequency characteristic, group delay, phase noise and other single channel nonlinear characteristics on the high-speed demodulation performance, and the influence of channel nonlinearity on high-speed data demodulation performance is analyzed through the comprehensive channel characteristic test. Results show that the measured phase noise and amplitude-frequency characteristic curves have little influence on the bit error rate, and the group delay has a greater influence on the bit error rate. When the group delay fluctuates more than $pL2ns, the demodulation threshold is increased by 10dB. In addition, other nonlinear characteristics, such as third-order intermodulation, AM/PM and AM/AM, are also analyzed.","PeriodicalId":191106,"journal":{"name":"Proceedings of the 2021 5th International Conference on Electronic Information Technology and Computer Engineering","volume":"6 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the 2021 5th International Conference on Electronic Information Technology and Computer Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1145/3501409.3501661","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

This paper mainly studies the influence of channel nonlinearity on the high-speed demodulation performance of satellite with 2/3 LDPC encoding and 600Mbps speed. Through the design of a channel simulator-based test plan, a single channel characteristic test is carried out, focusing on the analysis of the impact of the amplitude-frequency characteristic, group delay, phase noise and other single channel nonlinear characteristics on the high-speed demodulation performance, and the influence of channel nonlinearity on high-speed data demodulation performance is analyzed through the comprehensive channel characteristic test. Results show that the measured phase noise and amplitude-frequency characteristic curves have little influence on the bit error rate, and the group delay has a greater influence on the bit error rate. When the group delay fluctuates more than $pL2ns, the demodulation threshold is increased by 10dB. In addition, other nonlinear characteristics, such as third-order intermodulation, AM/PM and AM/AM, are also analyzed.

查看原文本刊更多论文

信道非线性对基于模拟器的高速数据解调性能的影响

本文主要研究了信道非线性对2/3 LDPC编码、600Mbps速率的卫星高速解调性能的影响。通过设计基于信道模拟器的测试方案，进行了单信道特性测试，重点分析了幅频特性、群延迟、相位噪声等单信道非线性特性对高速解调性能的影响，并通过综合信道特性测试分析了信道非线性对高速数据解调性能的影响。结果表明，测得的相位噪声和幅频特性曲线对误码率的影响较小，群延迟对误码率的影响较大。当组延迟波动大于$pL2ns时，解调阈值增加10dB。此外，还分析了三阶互调、AM/PM和AM/AM等非线性特性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Proceedings of the 2021 5th International Conference on Electronic Information Technology and Computer Engineering

自引率

0.00%

发文量