基于二阶统计量的四维近场源定位  

4-D near-field source localization based on second order statistics

作　　者：黄志强[1] 王树勋[1] 王波[1] 

机构地区：[1]吉林大学通信工程学院,吉林长春130025

出　　处：《电路与系统学报》2006年第6期56-60,共5页Journal of Circuits and Systems

基　　金：国家自然科学基金资助项目(60272065)

摘　　要：本文针对近场窄带信源频率、仰角、方向角和距离四维参数的估计问题,提出了一种基于二阶统计量的近场源四维参数估计方法。该方法利用中心对称的十字阵列和多重旋转矢量不变技术估计信源参数,无需谱峰搜索,同时避免应用四阶累积量,减轻了算法的计算量。仿真实验证明了该算法的有效性。The carrier frequency, elevation, bearing and range estimation problem of near-field narrowband sources is studied, and a new method based on second order statistics is presented. The proposed method uses a centro-symmetric cross array and the multiple-rotational invariance to estimate 4-D parameter of multiple sources. Additionally, it does not need any spectral peak searching, and avoids using fourth-order cumulant to reduce calculation burden. Its effectiveness is verified by the computer simulations.

关 键 词：近场源定位 二阶统计量 频率估计 仰角估计 方向角估计 距离估计 

分 类 号：TN911.72[电子电信—通信与信息系统]