On the threshold region mean-squared error performance of maximum-likelihood direction-of-arrival estimation in the presence of signal model mismatch

Research output: Chapter in Book/Report/Conference proceedingConference contribution

12 Citations (Scopus)

Abstract

The mean squared error (MSE) performance prediction of MaximumLikelihood (ML) Direction-Of-Arrival (DOA) angle estimation has been studied extensively. Previous analyses consider Cramér-Rao Bounds, sensitivity/asymptotic [in signal-to-colored noise ratio (SNR)] local error performance prediction that includes the impact of finite samples effects and additive signal modeling errors (mismatch), and prediction of the low SNR threshold region performance of ML DOA (without mismatch). Analysis of the adaptive array ML DOA (without mismatch) scenario has also been considered. The goals of this present analysis include the following: (i) to extend prediction of the asymptotic and threshold region MSE performance of ML to include a general form of deterministic signal model mismatch, and (ii) to begin looking at the threshold region performance of ML DOA estimation from an information-theoretic perspective, (iii) to determine if the classic work of Huber on model misspecification, although primarily asymptotic in nature, provide new insights into this finite sample problem. This initial work will focus on the DOA estimation of a single deterministic planewave signal in known colored noise and brief consideration will be given to the more complex scenario of an adaptive array in which the colored noise covariance must be estimated.

Original languageEnglish (US)
Title of host publication2006 IEEE Sensor Array and Multichannel Signal Processing Workshop Proceedings, SAM 2006
Pages268-272
Number of pages5
DOIs
StatePublished - Dec 1 2006
Externally publishedYes
Event4th IEEE Sensor Array and Multichannel Signal Processing Workshop Proceedings, SAM 2006 - Waltham, MA, United States
Duration: Jul 12 2006Jul 14 2006

Other

Other4th IEEE Sensor Array and Multichannel Signal Processing Workshop Proceedings, SAM 2006
CountryUnited States
CityWaltham, MA
Period7/12/067/14/06

Fingerprint

Direction of arrival
Maximum likelihood
Signal to noise ratio

ASJC Scopus subject areas

  • Signal Processing
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Cite this

On the threshold region mean-squared error performance of maximum-likelihood direction-of-arrival estimation in the presence of signal model mismatch. / Richmond, Christ.

2006 IEEE Sensor Array and Multichannel Signal Processing Workshop Proceedings, SAM 2006. 2006. p. 268-272 1677201.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Richmond, C 2006, On the threshold region mean-squared error performance of maximum-likelihood direction-of-arrival estimation in the presence of signal model mismatch. in 2006 IEEE Sensor Array and Multichannel Signal Processing Workshop Proceedings, SAM 2006., 1677201, pp. 268-272, 4th IEEE Sensor Array and Multichannel Signal Processing Workshop Proceedings, SAM 2006, Waltham, MA, United States, 7/12/06. https://doi.org/10.1109/SAM.2006.1677201
Richmond, Christ. / On the threshold region mean-squared error performance of maximum-likelihood direction-of-arrival estimation in the presence of signal model mismatch. 2006 IEEE Sensor Array and Multichannel Signal Processing Workshop Proceedings, SAM 2006. 2006. pp. 268-272
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