Alternatives for the definition and evaluation of resolution thresholds of signal-sub space parameter estimators

Wenyuan Xu, Mostafa Kaveh

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations

Abstract

This paper presents a formal probabilistic definition for the resolution capability of a general class of MUSIC-like direction estimators. An estimator in this class has its structure based on a one-dimensional search of the minima of an optimizing functional, usually termed the estimator null-spectrum. Following a rigorous definition of probability of resolution, various levels of approximation in the statistics employed are used to obtain computable expressions for resolution probabilities of two closely-spaced sources. These approximations are related to previously proposed definitions for resolution probability and in this manner clarify the conditions under which these ad-hoc definitions hold true.

Original languageEnglish (US)
Article number389837
Pages (from-to)IV209-IV212
JournalICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume4
DOIs
StatePublished - 1994
EventProceedings of the 1994 IEEE International Conference on Acoustics, Speech and Signal Processing. Part 2 (of 6) - Adelaide, Aust
Duration: Apr 19 1994Apr 22 1994

Bibliographical note

Funding Information:
This work was supported in parts by the National Science Foundation under Grant MIP-9202081 and by the BMDO/IST program managed by the Office of Naval Research under contract N00014-92-W911

Publisher Copyright:
© 1994 IEEE.

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