Title: GPS enabled efficient sound source localisation using microphone array
Authors: Hunny Pahuja; Priya Ranjan; Amit Ujlayan
Addresses: Department of Electronics and Communication, Amity University, Noida, UP, India; Department of Electronics and Communication, Lovely Professional University, Punjab, India ' Department of Electrical and Electronics Engineering, Amity University, Noida, UP, India ' Department of Mathematics, Gautam Buddha University, Greater Noida, India
Abstract: In this era of rapid technical developments in the field of sound source localisation, there is an urgent need to integrate these individual technologies to create an accurate and more power localiser. When the technique volumetric steered response power (V-SRP) is compared to steered response power (SRP), the former achieves a significant lower computational complexity. This is achieved without much decrease in the accuracy of location estimation. By appending a fine search stem to V-SRP, a refined version (RV-SRP) is achieved with improved compromise of complexity and accuracy. Experiments are performed using both the simulated as well as real scenario data to demonstrate the decrease in the computational cost. Further, in the experiment, the global positioning system (GPS) provides the accurate location coordinates of the source. It is to report newly developed system and methodologies which will be able to find approximate azimuth and elevation angle of sound source with integration of TDE-ILD-HRTF along with geo-positioning visualisations to help humanity to achieve its goal towards peace and harmony.
Keywords: GCC; generalised cross-correlation; global positioning system; GPS; phase transform; PHAT; refine volumetric steered response power; RV-SRP; SRP; steered response power; TDoA; time differences of arrival; volumetric steered response power; V-SRP.
International Journal of Signal and Imaging Systems Engineering, 2017 Vol.10 No.3, pp.120 - 135
Received: 22 Jul 2016
Accepted: 21 Mar 2017
Published online: 21 Aug 2017 *