:: year 3, Issue 1 (Journal of Acoustical Engineering Society of Iran 2015) ::
مجله علمی پژوهشی انجمن مهندسی صوتیات ایران 2015, 3(1): 10-25 Back to browse issues page
A hybrid localization method for near and far-field acoustical sources
M.R. Rahimi, H. Sadeghi *, A. Ghasemi, M. Shamsi
Abstract:   (44776 Views)

This paper proposes a hybrid acoustical source-location finding method using the hyperbolic localization and cross-bearing intersection techniques. The method employs the time delays estimations (TDE) observed from multiple sensors in order to find the location of the acoustic source in the near or far-filed. Since according to the existing literature, the conventional hyperbolic localization method does not provide enough accuracy for position-finding (PF), we propose that this method only be employed for obtaining TDEs. Then, using TDEs, the source position will be determined using the cross-bearing method. The simulation results show the significant improvement in source-position estimations as compared to traditional hyperbolic PF method. Furthermore, we also propose a method for accelerating the runtime of the optimization algorithm in the hybrid PF method. 

Keywords: Localization, Acoustical sources, Direction of arrival, Cross bearing, Time delay estimations
Full-Text [PDF 27 kb]   (2404 Downloads)    
Type of Study: Research | Subject: Hydroacoustics
Received: 2015/03/19 | Accepted: 2015/08/30 | Published: 2015/09/22

XML   Persian Abstract   Print

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
year 3, Issue 1 (Journal of Acoustical Engineering Society of Iran 2015) Back to browse issues page