A Fast and Accurate Sound Source Localization Method using Optimal Combination of SRP and TDOA Methodologies

Journal Title: Journal of Information Systems and Telecommunication - Year 2015, Vol 3, Issue 2

Abstract

This paper presents an automatic sound source localization approach based on combination of the basic time delay estimation sub method namely, Time Difference of Arrival (TDOA), and Steered Response Power (SRP) methods. The TDOA method is a fast but vulnerable approach to find sound source location in long distances and reverberant environments and so sensitive in noisy situations, on the other hand the conventional SRP method is time consuming but successful approach to accurately find sound source location in noisy and reverberant environment. Also another SRP based method namely SRP Phase Transform (SRP-PHAT) has been suggested for better noise robustness and more accuracy of sound source localization. In this paper, based on the combination of TDOA and SRP based methods, two approaches proposed for sound source localization. In the first proposed approach which is named Classical TDOA-SRP, the TDOA method is used to find approximate sound source direction and then SRP based methods used to find the accurate location of sound source in the Field of View (FOV) which is obtained through the TDOA method. In the second proposed approach which is named Optimal TDOA-SRP, for more reduction of computational time of processing of SRP based methods and better noise robustness, a new criteria has been proposed to find the effective FOV which is obtained through the TDOA method. Experiments carried out under different conditions confirm the validity of the purposed approaches.

Authors and Affiliations

Mohammad Ranjkesh, Reza Hasanzadeh

Keywords

Related Articles

Cyclic Correlation-Based Cooperative Detection for OFDM-Based Primary Users

This paper develops a new robust cyclostationary detection technique for spectrum sensing of OFDM-based primary users (PUs). To do so, an asymptotically constant false alarm rate (CFAR) multi-cycle detector is proposed a...

A Unicast Tree-Based Data Gathering Protocol for Delay Tolerant Mobile Sensor Networks

The Delay Tolerant Mobile Sensor Networks (DTMSNs) distinguish themselves from conventional sensor networks by means of some features such as loose connectivity, node mobility, and delay tolerability. It needs to be ackn...

Unsupervised Segmentation of Retinal Blood Vessels Using the Human Visual System Line Detection Model

Retinal image assessment has been employed by the medical community for diagnosing vascular and non-vascular pathology. Computer based analysis of blood vessels in retinal images will help ophthalmologists monitor larger...

Prediction of Deadlocks in Concurrent Programs Using Neural Network

The dependability of concurrent programs is usually limited by concurrency errors like deadlocks and data races in allocation of resources. Deadlocks are difficult to find during the program testing because they happen u...

Trust evaluation in unsupervised network: A fuzzy logic approach

Because of the possibility of anonymity and impersonation in social networks, trust plays an important role in these networks. Pear to pear networks, by eliminating the supervisor roles, besides its benefit in decreasing...

Download PDF file
  • EP ID EP185936
  • DOI 10.7508/jist.2015.02.005
  • Views 144
  • Downloads 0

How To Cite

Mohammad Ranjkesh, Reza Hasanzadeh (2015). A Fast and Accurate Sound Source Localization Method using Optimal Combination of SRP and TDOA Methodologies. Journal of Information Systems and Telecommunication, 3(2), 100-107. https://europub.co.uk/articles/-A-185936