An Algorithm for Joint Estimating Range, DOA and Frequency of Near-Field Sources  

作　　者：CHENJianfeng ZHANGXianda WUYuntao 

机构地区：[1]KeyLaboratoryforRadarSignalProcessing,XidianUniversity,Xi＇an710071,China [2]DepartmentofAutomation,TsinghuaUniversity,Beijing100084,China [3]KeyLaboratoryforRadarSignalProcessing,XidianUniversity,Xi＇an710071,China

出　　处：《Chinese Journal of Electronics》2004年第1期19-23,共5页电子学报（英文版）

摘　　要：Most of the existing eigen-decomposition based localization methods make the plane wave assumption in order to estimate the signal parameters of multiple sources. This paper proposes a novel joint algorithm for ranges, DOA's and frequencies of multiple narrow-band sources with the sources in the near field. This algorithm uses the Estimating signal parameters via rotational invariance technique (ESPRIT) based on cumulant-domain signal subspaces. The new algorithm does not require searching spectral peak or pairing among parameters, and has the power to resist an additive Gaussian noise due to use of the fourth-order cumulants. The performance of the new algorithm is confirmed by computer simulations.

关 键 词：DOA 阵列信号处理 距离判定 频率估计 四阶累积量 近场信号源 联合估计 

分 类 号：TN911.7[电子电信—通信与信息系统]