三维极化幅度调制解调器  

Three-dimensional polarization amplitude modulator and demodulator

作　　者：宋汉斌[1] 张俊博[1] 陈晓光[1] 张建秋[1] 

机构地区：[1]复旦大学信息科学与工程学院,上海200433

出　　处：《通信学报》2012年第9期15-22,共8页Journal on Communications

基　　金：国家自然科学基金资助项目(61171127);The National Natural Science Foundation of China(61171127)

摘　　要：从空间电磁场的数学描述出发,给出了对无线通信信号幅度、极化辐角与极化相位角进行三维联合调制解调的方法。根据描述空间电磁场各参数之间关系的方程,首先建立了三维联合调制信号的模型,然后讨论了三维联合调制信号通过矢量天线发射的实现方式,并给出了在接收端通过信号幅度检测及其波达方向(DOA)极化参数估计这2个步骤来实现对三维联合调制信号进行解调的策略;分析了三维联合调制误码率的计算方法及其性能。分析与仿真结果均表明:所提出的调制解调方法具有传输速率高和误码率低的优点。Based on the mathematical description of a space electromagnetic field,a novel approach to the three-dimen-sional joint modulation of the signal amplitude,polarization angle and polarization phase angle of an electromagnetic signal in wireless communication was presented.The model of the three-dimensional modulation signal was first given by the equations of the relationship among the parameters of a space electromagnetic field.Then,the transmission im-plementation of the three-dimensional joint modulation signal was discussed by a vector antenna.At the receiving end,a signal amplitude detection and DOA polarization parameter estimation method was given to demodulate the received three-dimensional joint modulation signal.The bit error rate and performance of the proposed three-dimensional joint modulator and demodulator were analyzed.Both the analysis and the simulation results show that a high information transmission and a low bit error rates can simultaneously be obtained by the proposed method.

关 键 词：三维调制解调器 矢量天线 空间电磁场方程建模 误码率 

分 类 号：TN911.3[电子电信—通信与信息系统]