A lower bound of DOA-estimates by an array randomly subject to sensor-breakdown

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/109126

Title:	A lower bound of DOA-estimates by an array randomly subject to sensor-breakdown
Authors:	許玉生;Wong, K. T.;Wu, Y. I.;Hsu, Yu-Sheng;Song, Yang
Contributors:	理學院數學系
Keywords:	Approximation;Array signal processing;Arrays;Computer simulation;Cramer-Rao bounds;direction of arrival estimation;Lower bounds;Maximum likelihood detection;Maximum likelihood estimation;Measurement;Monte Carlo methods;phased arrays;Sensor arrays;Sensors
Date:	2012-04-20
Issue Date:	2026-04-23 16:09:27 (UTC+8)
Publisher:	Institute of Electrical and Electronics Engineers Inc.;New York: IEEE
Abstract:	摘要： 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. 其他題名： JSEN 出版者： New York: IEEE 出版日期： 2012-05-01 出處： IEEE sensors journal, 2012-05, Vol.12 (5), p.911-913 資源來源： IEEE Electronic Library (IEL) 版權： Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) May 2012 識別號： ISSN: 1530-437X 識別號： EISSN: 1558-1748 識別號： DOI: 10.1109/JSEN.2011.2165704 識別號： CODEN: ISJEAZ
Appears in Collections:	[Department of Mathematics] journal & Dissertation

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