@article{7d9dcf5183df4bb78d9ddd243dbc8bf2,
title = "Effects of Modeling Errors on the Resolution Threshold of the Music Algorithm",
abstract = "Subspace-based algorithms for narrowband direction-of-arrival (DOA) estimation require detailed knowledge of the array response (the array manifold) and assume that the noise covariance matrix is known up to a scaling factor. In practice, these quantities are not known precisely. Estimation accuracy can degrade significantly when the array response or the noise covariance deviate from their nominal values. In this work, we examine the resolution threshold of the MUSIC algorithm when the array response is perturbed from its assumed value and when the noise covariance does not match the assumed model. Analytical expressions for the resolution threshold are derived and verified by computer simulation. We also demonstrate the fact that preprocessing of the array data can improve somewhat the resolution in the presence of model errors. This work makes extensive use of the contributions of various authors.",
author = "Weiss, {Anthony J.}",
note = "Funding Information: Manuscript received January 26, 1993; revised August 4, 1993. This work was supported by the United States Army Research Office under Contract DAAL03-91-C-0022, sponsored by U.S. Army Communications Electronics Command, Center for Signals Warfare. The associate editor coordinating the review of this paper and approving it for publication was Prof. Georgios B. Giannakis. A. J. Weiss is with the Electrical Engineering Department, Tel-Aviv University, Tel-Aviv, Israel. B. Friedlander is with the Department of Electrical and Computer Engineering, University of California, Davis, CA 95616 USA. IEEE Log Number 9400391.",
year = "1994",
month = jun,
doi = "10.1109/78.286967",
language = "אנגלית",
volume = "42",
pages = "1519--1526",
journal = "IEEE Transactions on Signal Processing",
issn = "1053-587X",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "6",
}