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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
|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.||URI:||https://hdl.handle.net/10356/97846
|DOI:||http://dx.doi.org/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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