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
- EP ID EP185936
- DOI 10.7508/jist.2015.02.005
- Views 147
- Downloads 0
Assessment of Performance Improvement in Hyperspectral Image Classification Based on Adaptive Expansion of Training Samples
High dimensional images in remote sensing applications allow us to analysis the surface of the earth with more details. A relevant problem for supervised classification of hyperspectral image is the limited availability...
Coreference Resolution Using Verbs Knowledge
Coreference resolution is the problem of determining which mention in a text refer to the same entities, and is a crucial and difficult step in every natural language processing task. Despite the efforts that have been m...
GoF-Based Spectrum Sensing of OFDM Signals over Fading Channels
Goodness-of-Fit (GoF) based spectrum sensing of orthogonal frequency-division multiplexing (OFDM) signals is investigated in this paper. To this end, some novel local sensing methods based on Shapiro-Wilk (SW), Shapiro-F...
A Semantic Approach to Person Profile Extraction from Farsi Web Documents
Entity profiling (EP) as an important task of Web mining and information extraction (IE) is the process of extracting entities in question and their related information from given text resources. From computational viewp...
A New Switched-beam Setup for Adaptive Antenna Array Beamforming
In this paper, a new spatio-temporal based approach is proposed which improves the speed and performance of temporal-based algorithms, conventional Least Mean Square (LMS), Normalized LMS (NLMS) and Variable Step-size LM...