Next Article in Journal
Localisation of Sensor Nodes with Hybrid Measurements in Wireless Sensor Networks
Previous Article in Journal
On Inertial Body Tracking in the Presence of Model Calibration Errors
Open AccessArticle

Design of a Direction-of-Arrival Estimation Method Used for an Automatic Bearing Tracking System

1
Science and Technology on Microsystem Laboratory, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
2
IBM-Research China Lab, Shanghai 201203, China
*
Author to whom correspondence should be addressed.
Academic Editor: Stefano Mariani
Sensors 2016, 16(7), 1145; https://doi.org/10.3390/s16071145
Received: 1 June 2016 / Revised: 17 July 2016 / Accepted: 19 July 2016 / Published: 22 July 2016
(This article belongs to the Section Physical Sensors)
In this paper, we introduce a sub-band direction-of-arrival (DOA) estimation method suitable for employment within an automatic bearing tracking system. Inspired by the magnitude-squared coherence (MSC), we extend the MSC to the sub-band and propose the sub-band magnitude-squared coherence (SMSC) to measure the coherence between the frequency sub-bands of wideband signals. Then, we design a sub-band DOA estimation method which chooses a sub-band from the wideband signals by SMSC for the bearing tracking system. The simulations demonstrate that the sub-band method has a good tradeoff between the wideband methods and narrowband methods in terms of the estimation accuracy, spatial resolution, and computational cost. The proposed method was also tested in the field environment with the bearing tracking system, which also showed a good performance. View Full-Text
Keywords: DOA estimation; bearing tracking; narrowband; wideband; sub-band magnitude-squared coherence; microphone array DOA estimation; bearing tracking; narrowband; wideband; sub-band magnitude-squared coherence; microphone array
Show Figures

Figure 1

MDPI and ACS Style

Guo, F.; Liu, H.; Huang, J.; Zhang, X.; Zu, X.; Li, B.; Yuan, X. Design of a Direction-of-Arrival Estimation Method Used for an Automatic Bearing Tracking System. Sensors 2016, 16, 1145.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop