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Acoustic Localization Employing Polar Directivity Patterns of Bidirectional Microphones Enabling Minimum Aperture Microphone Arrays

Varada, Vijay K.

Abstract Details

2010, Master of Science in Engineering, University of Toledo, Engineering (Computer Science).
This thesis document introduces a novel sound source localization (SSL) technique using an array of bidirectional microphones. Specifically, the proposed technique exploits the polar directivity pattern of three bidirectional microphones to provide complete 360° localization coverage. An algorithm was developed specifically for the proposed method. The feasibility of this approach has been tested both through simulations as well as experiments. This technique reduces the total number of microphones required when compared to the recently introduced unidirectional microphone based localization technique to provide similar coverage. Reduction in the number of microphones means reduction in cost. At the same time, the overall spatial displacement requirements for the sensors are significantly reduced compared to the existing time-domain and phased array methods. This makes the system compact and portable.
Hong Wang, PhD (Committee Chair)
Vijay Devabhaktuni, PhD (Committee Member)
Mansoor Alam, PhD (Committee Member)
83 p.

Recommended Citations

Citations

  • Varada, V. K. (2010). Acoustic Localization Employing Polar Directivity Patterns of Bidirectional Microphones Enabling Minimum Aperture Microphone Arrays [Master's thesis, University of Toledo]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1290118825

    APA Style (7th edition)

  • Varada, Vijay. Acoustic Localization Employing Polar Directivity Patterns of Bidirectional Microphones Enabling Minimum Aperture Microphone Arrays. 2010. University of Toledo, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=toledo1290118825.

    MLA Style (8th edition)

  • Varada, Vijay. "Acoustic Localization Employing Polar Directivity Patterns of Bidirectional Microphones Enabling Minimum Aperture Microphone Arrays." Master's thesis, University of Toledo, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1290118825

    Chicago Manual of Style (17th edition)