Computationally Efficient Maximum Likelihood Approach to DOA Estimationof a Scattered Source
Wireless Personal Communications: An International Journal
Robustness of narrowband DOA algorithms with respect to signal bandwidth
Signal Processing
Low-complexity estimation of 2D DOA for coherently distributed sources
Signal Processing - Special section: Hans Wilhelm Schüßler celebrates his 75th birthday
Signal Processing - Special section: Hans Wilhelm Schüßler celebrates his 75th birthday
Direction of arrival estimation with multipath scattering by space-time processing
Signal Processing - Special section: New trends and findings in antenna array processing for radar
A modified COMET-EXIP method for estimating a scattered source
Signal Processing
Review of user parameter-free robust adaptive beamforming algorithms
Digital Signal Processing
On low complexity robust beamforming with positive semidefinite constraints
IEEE Transactions on Signal Processing
Space-time Doppler spread estimation in mobile fading channels
MILCOM'06 Proceedings of the 2006 IEEE conference on Military communications
Simplified Estimation of 2D DOA for Coherently Distributed Sources
Wireless Personal Communications: An International Journal
Fast DOA estimation of incoherently distributed sources by novel propagator
Multidimensional Systems and Signal Processing
Low-Complexity Estimation of the Nominal Azimuth and Elevation for Incoherently Distributed Sources
Wireless Personal Communications: An International Journal
Low-Complexity Estimation of DOA and Angular Spread for an Incoherently Distributed Source
Wireless Personal Communications: An International Journal
A Simplified Estimator for Tridimensional Localization of Single Incoherently Distributed Source
Wireless Personal Communications: An International Journal
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In mobile communications, local scattering in the vicinity of the mobile results in angular spreading as seen from a base station antenna array. In this paper, we consider the problem of estimating the parameters [direction-of-arrival (DOA) and angular spread] of a spatially distributed source, using a uniform linear array (ULA). A two-step procedure enabling decoupling the estimation of DOA from that of the angular spread is proposed. This method combines a covariance matching algorithm with the use of the extended invariance principle (EXIP). More exactly, the first step makes use of an unstructured model for the part of the covariance matrix that depends on the angular spread. Then, the solution is refined by invoking EXIP. Instead of a 2-D search, the proposed scheme requires two successive 1-D searches. Additionally, the DOA estimate is robust to mismodeling the spatial distribution of the scatterers. A statistical analysis is carried out, and a formula for the asymptotic variance of the estimates is derived. Numerical examples illustrate the performance of the method