LOCALIZATION FOR MIXED NEAR-FIELD AND FAR-FIELD SOURCES BY INTERLACED NESTED ARRAY

Passive Localization of Mixed Far-Field and Near-Field Sources without Estimating the Number of Sources

This paper presents a novel algorithm for the localization of mixed far-field sources (FFSs) and near-field sources (NFSs) without estimating the source number. Firstly, the algorithm decouples the direction-of-arrival (DOA) estimation from the range estimation by exploiting fourth-order spatial-temporal cumulants of the observed data. Based on the joint diagonalization structure of multiple sp...

Space-time Matrix Method for Mixed Near-Field and Far-Field Sources Localization

Mixed near-field and far-field sources localization problem has received significant attention recently in some practical applications, such as speaker localization using microphone arrays and guidance systems, etc. This paper presents a novel space-time matrix method to localize mixed nearfield and far-field sources. Using the proposed method, both the direction-of-arrival (DOA) and range of a...

Three-dimensional Localization Algorithm for Mixed Near-field and Far-field Sources Based on Esprit and Music Method

A three-dimensional (3-D) source localization algorithm of joint elevation, azimuth angles and range estimation for the mixed near-field (NF) and far-field (FF) sources is presented in this paper. We first estimate the elevation angles of all mixed sources by using the generalized ESPRIT method. With the elevation angle estimates, the range parameters of all mixed sources are obtained, and then...

JRDF Algorithm for Joint Range-DOA-Frequency Estimation of Mixed Near-Field and Far-Field Sources

This paper presents an effective joint range-DOA-frequency (JRDF) estimation method based on fourth-order cumulants for multiple mixed near-field sources and far-field sources impinging on a symmetric uniform linear array, named as JRDF algorithm. Making use of the proposed method, range-DOA-frequency can be effectively estimated by the same eigen-pair of a defined “information matrix” construc...

Speaker localization for far-field and near-field wideband sources using neural networks