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- Title
Two-stage Localisation Scheme Using a Small-scale Linear Microphone Array for Indoor Environments.
- Authors
Jiang, Wuyang; Pei, Ling; Xu, Changqing; Chen, Liang; Yu, Wenxian
- Abstract
The small-scale linear microphone arrays that are widely found in smartphones could be used to locate a sound source for indoor environments. After the Time Differences Of Arrival (TDOAs) in microphone pairs are estimated, a TDOA-based hybrid localisation scheme is proposed for a small-scale linear microphone array. The scheme contains two stages: the initialisation stage using the Levenberg-Marquardt (LM) algorithm, and the refining solution stage using the Weighted Least-Square (WLS) algorithm or the Multi-Dimensional Scaling-based (MDS) algorithm. Simulations and field tests show that the proposed indoor localisation scheme outperforms the existing schemes, and it can achieve an average error of 0·32 metres in an 8 m by 5 m area.
- Subjects
MICROPHONES; ELECTROACOUSTIC transducers; AUDIO equipment; TRANSMISSION of sound; MICROPHONE arrays
- Publication
Journal of Navigation, 2015, Vol 68, Issue 5, p915
- ISSN
0373-4633
- Publication type
Article
- DOI
10.1017/S0373463315000107