基于分段代价函数的新双模式空间分集均衡器(英文)  

New dual-mode Spatial Diversity Equalizer based on segment cost function

作　　者：高惠娟[1] 何学强 戴国星[2] 

机构地区：[1]南昌工程学院信息工程学院,江西南昌330099 [2]南昌工程学院国际教育学院,江西南昌330099

出　　处：《南昌工程学院学报》2014年第1期44-48,共5页Journal of Nanchang Institute of Technology

基　　金：Supported by Youth Science Foundation of Nanchang Institute of Technology(No.2012KJ019;No.2012KJ023);National College Students’In-novation and Entrepreneurship Training Program(No.201311319029)~~

摘　　要：提出了一种新的基于分段代价函数的双模式空间分集均衡器,来同时克服信号衰落及码间串扰.新的空间分集均衡器中的核心算法由基于分段代价函数的常数模算法和多模算法组成.对于高阶QAM信号,新的空间分集均衡器比传统的空间分集均衡器具有更低的稳态均方误差和更快的收敛速度.利用水下声信道模型进行计算机仿真研究,结果证明了新空间分集均衡器的有效性.In this paper,a new dual-mode Spatial Diversity Equalizer（SDE） based on segment cost function is proposed to o- vercome signal fading and inter-symbol interference（ISI） simultaneously. The key algorithm of the proposed SDE consists of the constant modulus algorithm（CMA） based on segment cost function and the multi-modulus algorithm. For the high-order QAM signals,the proposed SDE can obtain lower steady-state mean square error and faster convergence rate comparing with the traditional SDE. The efficiency of the method is proved by computer simulations in underwater acoustic channels.

关 键 词：空间分集均衡器 分段代价函数 常数模算法 

分 类 号：TN911.5[电子电信—通信与信息系统]