相关噪声中的TOA估计算法研究  

The Study of Correlated Noise TOA Estimation Algorithm

作　　者：戴红霞[1] 丁一坤 赵力[2] DAI Hongxia;DING Yikun;ZHAO Li(Department of Electronics Communications Engineering, Jiangsu Information Occupation Technical College, Wuxi Jiangsu 214061, China;School of lnfornzation Science and Engineering, Southeast University, Nanjing 210096, China)

机构地区：[1]江苏信息职业技术学院电子信息工程系,江苏无锡214153 [2]东南大学信息科学与工程学院,南京210096

出　　处：《电子器件》2018年第3期725-729,共5页Chinese Journal of Electron Devices

基　　金：国家自然科学基金项目(No:61673108);江苏高校品牌专业建设工程项目(No:PPZY2015B190)

摘　　要：实际环境中,常存在信号与噪声相关的情况,因此相关噪声环境中高效准确的信道参数估计算法的研究对于无线通信系统的构建至关重要。首先研究了基本MUSIC算法的TOA参数估计算法,仿真表明此种算法在高斯白噪声环境表现良好,但是并不适合相关噪声环境。针对相关噪声环境,研究了TOA参数估计中的MUSIC改进算法,并进行了仿真验证。仿真结果表明,改进算法完全可以适合于相关噪声环境中进行高分辨率TOA估计。In the actual environment,there are often cases where the signal is related to noise. Therefore,an efficient and accurate channel parameter estimation algorithm in a correlated noise environment is very important for the construction of a wireless communication system. This paper first studies the TOA parameter estimation algorithm based on the MUSIC algorithm. The simulation shows that this algorithm performs well in the white Gaussian noise environment,but it is not suitable for the relevant noise environment. For the relevant noise environment,we studied the improved MUSIC algorithm in TOA parameter estimation and verified it by simulation. Simulation results show that the improved algorithm can be applied to high-resolution TOA estimate in correlated noise environment.

关 键 词：相关噪声 TOA估计 MUSIC算法 

分 类 号：TN911.7[电子电信—通信与信息系统]