基于正交化的时频组合调制系统的性能分析  

Performance Analysis of Time-frequency Combined Modulation Systems

作　　者：沈越泓[1,2] 益晓新[1,2] 李兴国[1,2] 

机构地区：[1]南京通信工程学院 [2]南京理工大学

出　　处：《电讯技术》1998年第6期5-9,共5页Telecommunication Engineering

摘　　要：本文基于泛函分析中内积空间理论建立了信号空间，将时频信号表示成相互正交的矢量，然后对时频组合调制系统进行了性能分析。给出了在ＡＷＧＮ（加性白高斯噪声）信道和匹配子空间解调器的条件下，对四时四频系统进行性能分析的过程，分析的结果得到了计算机模拟试验的验证。文中最后也推广给出了Ｍ进制ｎ时ｎ频时频组合调制的误码率公式。In this paper, the performance of time-frequency combined modulation systems is analyzed by use of inner product space theory combined with statistical theory. The key step of the analysis process is to represent time-frequency modulation signals as perpendicular vectors each other. The analysis process for time-frequency modulation signals transmitted over the additive white Gaussian noise (AWGN) channel is given. And the computer simulation results for the time-frequency modulation systems are also given. The computer simulation results show that the theoretical results are correct.

关 键 词：数字通信 时频组合调制 数字调制 

分 类 号：TN914.3[电子电信—通信与信息系统] TN761[电子电信—信息与通信工程]