基于色噪声背景下线性滤波器组检测性能的研究  

Research on Detection Performance of Linear Filter Bank Based on Colored Noise Background

作　　者：王家辉 张正平 侯磊 WANG Jia-hui;ZHANG Zheng-ping;HOU Lei(School of Big Data and Information Engineering,Guizhou University,Guiyang 550025)

机构地区：[1]贵州大学大数据与信息工程学院,贵州贵阳550025

出　　处：《软件》2020年第3期283-288,共6页Software

摘　　要：随着5G新空口信号处理技术的广泛应用,为了提高大规模组网中基站(天线)滤波器检测系统的检测性能,本文提出了一种基于色噪声背景下对信号进行检测判决的线性滤波器组(LFB)检测系统,即在传统匹配滤波器检测系统中加入白化滤波器级联组构成线性滤波器组检测系统,首先对二元确知信号检测判决系统中相干相移键控系统(CPSK),相干频移键控系统(CFSK),和相干启闭键控系统(COOK)的检测性能进行分析。其次,在此基础上推广到对多元(M元信号检测)确知信号检测性能进行分析。最后,经过仿真,根据最大输出信噪比准则,采用白化滤波器组将色噪声滤除有色部分后通过检测判决系统,获取在色噪声背景下最佳的线性滤波器组(Linear Filter Bank,LFB)(相关接收机)的检测性能。In order to improve the detection performance of the base station(antenna) filter detection system in large-scale networking, this paper proposes a linear filter bank(LFB) detection system based on the detection of signals in the background of color noise, that is, in traditional matched filtering. The whitening filter cascade group is added to the detection system to form a linear filter bank detection system. First, the coherent phase shift keying system(CPSK) and the coherent frequency shift keying system(CFSK) in the binary-determined signal detection and decision system are implemented. And the detection performance of the coherent opening and closing keying system(COOK) is analyzed. Secondly, on this basis, it is extended to analyze the performance of multi-element(M-ary signal detection) signal detection. Finally, after simulation, according to the maximum output signal-to-noise ratio criterion, the white filter bank is used to filter the color noise to remove the colored part and then pass the detection decision system to obtain the best linear filter bank(Linear Filter Bank, LFB) in the background of color noise.(Related Receiver) detection performance.

关 键 词：大规模MIMO 信号检测 预白化处理 信噪比 线性滤波器组LFB 

分 类 号：TN911[电子电信—通信与信息系统]