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A Signal Adaptive Array Interpolation Approach with Reduced Transformation Bias for DOA estimation of Highly Correlated Signals

Marinho, Marco A. M. and Antreich, Felix and C. L. da Costa, Joao Paulo and Nossek, Josef A. (2014) A Signal Adaptive Array Interpolation Approach with Reduced Transformation Bias for DOA estimation of Highly Correlated Signals. In: Proceedings of IEEE International Conference on Audio, Speech, and Signal Processing (ICASSP) 2015. IEEE. IEEE International Conference on Audio, Speech, and Signal Processing (ICASSP), 2014-05-04 - 2014-05-09, Florence,Italy. doi: 10.1109/ICASSP.2014.6854004.

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Abstract

Sensor arrays with Vandermonde or centro-hermitian responses cannot always be constructed. However, such array response structure can be achieved by means of a mapping which transforms the real array response to an array response with the desired properties by applying array interpolation algorithms. In this work a low-complexity, multi-sector, signal adaptive array interpolation approach that achieves low transformation bias in the presence of highly correlated signals is presented. Estimation of Signal Parameters via Rotational Invariance (ESPRIT) algorithm with Forward Backward Average (FBA) and Spatial Smoothing (SPS) as well as model order estimation is applied after array interpolation in conjunction with the Vandermonde Invariance Transformation (VIT) to obtain precise high resolution estimates in closed form. A set of numerical simulations show that the proposed approach provides precise estimates for arbitrary array responses in highly correlated signal signal environments.

Item URL in elib:https://elib.dlr.de/92205/
Document Type:Conference or Workshop Item (Poster)
Title:A Signal Adaptive Array Interpolation Approach with Reduced Transformation Bias for DOA estimation of Highly Correlated Signals
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Marinho, Marco A. M.University of Brasilia/DLRUNSPECIFIEDUNSPECIFIED
Antreich, FelixUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
C. L. da Costa, Joao PauloUniversity of BrasiliaUNSPECIFIEDUNSPECIFIED
Nossek, Josef A.Technische Universität München (TUM)UNSPECIFIEDUNSPECIFIED
Date:May 2014
Journal or Publication Title:Proceedings of IEEE International Conference on Audio, Speech, and Signal Processing (ICASSP) 2015
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI:10.1109/ICASSP.2014.6854004
Publisher:IEEE
Status:Published
Keywords:Array Interpolation, Array Mapping, Antenna Arrays, Vandermonde Invariance Transformation
Event Title:IEEE International Conference on Audio, Speech, and Signal Processing (ICASSP)
Event Location:Florence,Italy
Event Type:international Conference
Event Start Date:4 May 2014
Event End Date:9 May 2014
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication and Navigation
DLR - Research area:Raumfahrt
DLR - Program:R KN - Kommunikation und Navigation
DLR - Research theme (Project):R - Vorhaben GNSS2/Neue Dienste und Produkte (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Navigation
Deposited By: Antreich, Felix
Deposited On:26 Nov 2014 10:44
Last Modified:24 Apr 2024 19:58

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