A Lower Bound of DOA-Estimates by an Array Randomly Subject to Sensor-Breakdown

• Published in: IEEE sensors journal Vol. 12; no. 5; pp. 911 - 913
• Main Authors: Wong, K. T., Wu, Y. I., Yu-Sheng Hsu, Yang Song
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.05.2012; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: 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

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 c...