卫星信道群时延对高阶调制信号接收影响的仿真分析  

Simulation and analysis about satellite channel group delay influence forhigh-order signal receive

作　　者：唐婷[1] Tang Ting(Southwest China Institute of Electronic Technology,Chengdu 610036,China)

机构地区：[1]中国西南电子技术研究所,四川成都610036

出　　处：《电子技术应用》2023年第9期133-137,共5页Application of Electronic Technique

摘　　要：针对信道群时延对高阶调制信号的影响进行仿真分析,给出了线性群时延、抛物线群时延模型下,8PSK、16APSK和16QAM接收系统信道群时延的设计指标。同时针对群时延补偿技术,仿真了CAM与DD结合的均衡算法对信道群时延的补偿效果,为后续工程设计提供参考。Simulation and analysis is given about channel group delay influence for high-order signal receives.In the condition of linear group delay and parabolic group delay,index is given about system group delay design with 8PSK,16APSK and 16QAM.For compensation technology of group delay,CMA and DD equalization algorithm is used,and result is given by simulation,which can be used to subsequent engineering design.

关 键 词：线性群时延 抛物线群时延 高阶调制 卫星信道 

分 类 号：TN76[电子电信—电路与系统]