基于MA的自适应多载波并行组合扩频通信技术  

MA-based Adaptive Multi-Carrier Parallel Combination Spread Spectrum Communication Technology

作　　者：丁杰 丁丹 景梦娇 胡博仁 DING Jie;DING Dan;JING Mengjiao;HU Boren(Graduate School,Space Engineering University,Beijing 101416,China;Department of Electronic and Optical Engineering,Space Engineering University,Beijing 101416,China)

机构地区：[1]航天工程大学研究生院,北京101416 [2]航天工程大学电子与光学工程系,北京101416

出　　处：《火力与指挥控制》2023年第1期50-56,64,共8页Fire Control & Command Control

基　　金：国家“863”计划基金资助项目(2015AA7026085)。

摘　　要：为了提升多载波并行组合扩频的通信性能,将自适应技术应用于多载波并行组合扩频通信系统中,并基于边缘自适应准则(MA),针对多载波并行组合扩频(PCSS-OFDM)通信系统和多载波差分多相并行组合扩频(DMP-PCSS-OFDM)通信系统,分别提出两种自适应通信方式。在多种多径信道环境中的仿真结果显示:在多径信道中,自适应PCSS-OFDM系统的误码率相比PCSS-OFDM系统有显著降低;自适应DMP-PCSS-OFDM系统则更适用于相干带宽较窄且衰落较深的信道中。In order to improve the communication performance of multi-carrier parallel combined spread spectrum,the adaptive technology is applied to multi-carrier parallel combined spread spectrum communication system,and based on edge adaptation criterion(MA),for multi-carrier parallel combined spread spectrum(PCSS-OFDM)communication system and the multi-carrier differential multi-phase parallel combined spread spectrum(DMP-PCSS-OFDM)communication system,two adaptive communication methods are respectively proposed.The simulation results in a variety of multipath channel environments show that in the multipath channel,the bit error rate of the adaptive PCSSOFDM system is significantly lower than that of the PCSS-OFDM system;the adaptive DMP-PCSSOFDM system is more suitable in the channel with narrow coherent bandwidth and deep fading.

关 键 词：正交频分复用 并行组合扩频 自适应调制 贪婪算法 多径信道 

分 类 号：TN914[电子电信—通信与信息系统]