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Title: A lower bound of DOA-estimates by an array randomly subject to sensor-breakdown
Authors: Wong, Thomas Kainam
Wu, Ivan Yue
Hsu, Yu-Sheng
Song, Yang
Keywords: DRNTU::Engineering::Electrical and electronic engineering
Issue Date: 2011
Series/Report no.: IEEE sensors journal
Abstract: This paper introduces a new metric, to approximately lower-bound the error-variance in the estimation of an incident source's direction-of-arrival (DOA), for a sensor-array subject to random breakdown in its individual sensors. This new metric equals a weighted sum of Cramér-Rao bounds, each conditioned on a distinct event of sensors-breakdown. Those distinct events together describe the overall random phenomenon of the fallibility of the sensors that constitute the sensor-array. This new metric's tightness as an approximate lower bound is illustrated by Monte Carlo simulations of the maximum-likelihood estimator.
DOI: 10.1109/JSEN.2011.2165704
Rights: © 2011 IEEE.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:EEE Journal Articles

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