Subspace leakage analysis and improved DOA estimation with small sample size

M Shaghaghi, SA Vorobyov - IEEE Transactions on Signal …, 2015 - ieeexplore.ieee.org
Classical methods of DOA estimation such as the MUSIC algorithm are based on estimating
the signal and noise subspaces from the sample covariance matrix. For a small number of …

On the asymptotic performance analysis of subspace DOA estimation in the presence of modeling errors: Case of MUSIC

A Ferreol, P Larzabal, M Viberg - IEEE Transactions on signal …, 2006 - ieeexplore.ieee.org
This paper provides a new analytic expression of the bias and RMS error (root mean
square) error of the estimated direction of arrival (DOA) in the presence of modeling errors …

Iterative methods for subspace and DOA estimation in nonuniform noise

B Liao, SC Chan, L Huang… - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
Usually, direction-of-arrival (DOA) estimators are derived under the assumption of uniform
white noise, whose covariance matrix is a scaled identity matrix. However, in practice, the …

Non-iterative subspace-based DOA estimation in the presence of nonuniform noise

M Esfandiari, SA Vorobyov, S Alibani… - IEEE Signal …, 2019 - ieeexplore.ieee.org
The uniform white noise assumption is one of the basic assumptions in most of the existing
direction-of-arrival (DOA) estimation methods. In many applications, however, the …

A DOA estimation algorithm based on eigenvalues ranking problem

F Chen, D Yang, S Mo - IEEE Transactions on Instrumentation …, 2023 - ieeexplore.ieee.org
Although traditional subspace direction of arrival (DOA) algorithms enable super-resolution,
the algorithm performance declines sharply when the number of sources is incorrectly …

A novel DOA estimation algorithm based on eigen space

Z Xiaofei, L Wen, S Ying, Z Ruina… - … on Microwave, Antenna …, 2007 - ieeexplore.ieee.org
Based on the investigation to classical DOA algorithm (MUSIC and improved MUSIC), a
novel DOA estimation algorithm is proposed which makes full use of signal subspace and …

Fast DOA estimation based on a split subspace decomposition on the array covariance matrix

FG Yan, Y Shen, M Jin - Signal Processing, 2015 - Elsevier
A novel real-valued root multiple signal classification (RV-root-MUSIC) algorithm for
estimating the direction-of-arrival (DOA) of multiple narrow-band signals is presented …

High resolution wideband DOA estimation based on modified MUSIC algorithm

L Zhou, Y Zhao, H Cui - 2008 International Conference on …, 2008 - ieeexplore.ieee.org
A modified MUSIC algorithm for DOA estimation was proposed in this paper. It weighted the
eigenvectors in the noise subspace which decreased the proportion of the eigenvectors of …

Low-complexity DOA estimation based on compressed MUSIC and its performance analysis

F Yan, M Jin, X Qiao - IEEE Transactions on Signal Processing, 2013 - ieeexplore.ieee.org
This paper presents a new computationally efficient method for direction-of-arrival (DOA)
estimation with arbitrary arrays. The total angular field-of-view is first divided into several …

A sparse recovery algorithm for DOA estimation using weighted subspace fitting

N Hu, Z Ye, D Xu, S Cao - Signal processing, 2012 - Elsevier
A new algorithm involving sparse recovery is proposed to address the problem of direction-
of-arrival (DOA) estimation using weighted subspace fitting (WSF). The proposed algorithm …