Time delay based failure-robust direction of arrival estimation
- 9 September 2005
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 618-622
- https://doi.org/10.1109/sam.2004.1503023
Abstract
There is an increasing interest in autonomous and unattended sensory systems, including applications in smart meeting rooms and surveillance of large areas. In these systems, direction of arrival (DOA) estimation has an important role. Although several time delay based algorithms have been proposed, little attention has been given to hardware failures and malfunctions. These are, however, an important consideration when smart arrays and intelligent sensor systems are developed. In this paper, we address this problem by modifying a previously proposed single-failure detector to suit a multiple failure case. The performance of the modified method is tested both with simulations and speech data recorded using a microphone array in a meeting room. Results indicate that the proposed method can detect failures effectively. The detector is also combined with DOA estimators. Results show that this combination is robust against failures and the detector provides an efficient tool for array self-diagnosis.Keywords
This publication has 11 references indexed in Scilit:
- Detection and compensation of sensor malfunction in time delay based direction of arrival estimationPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2004
- Localization-Based Sensor Validation Using the Kullback–Leibler DivergenceIEEE Transactions on Systems, Man, and Cybernetics, Part B (Cybernetics), 2004
- Toward intelligent sensors - reliability for time delay based direction of arrival estimatesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2004
- Analysis of robust time-delay based angle-of-arrival estimation methodsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Low-complexity angle of arrival estimation of wideband signals using small arraysPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Source localization and beamformingIEEE Signal Processing Magazine, 2002
- Microphone ArraysPublished by Springer Nature ,2001
- Medium-range localisation of aircraft via triangulationApplied Acoustics, 2000
- Fault tolerance in autonomous acoustic arraysJournal of the Franklin Institute, 1999
- The generalized correlation method for estimation of time delayIEEE Transactions on Acoustics, Speech, and Signal Processing, 1976