Loading...

Analysis, Design and Implementation of a Low Power and High Speed Sound Source Localizer

Zarghi, Hamid Reza | 2011

770 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 42459 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Sharif Khani, Mohammad; Gholampour, Iman
  7. Abstract:
  8. Throughout localization algorithms, sound source localization has received much interest using microphone array. Applications like tracking and determining angle of acoustic signal arrival have been combined with array processing techniques in the previous decade. Distributed micro sensor array have been suggested for a wide range of nowaday’s localization algorithms. The major goals are monitoring the environment, distinction, and pursue some phenomenon. This type of networks can be utilized for military application in tracking acoustic sources. Today’s advancement in technology allows implementation of the ultra low cost and low power integrated circuit for such application in the form of signal processing and wireless communication of the nodes. Sound Source Localization is called to the methods for finding the position of the sound source using microphone array. This thesis has attempted to introduce the most effective algorithms in this field, as well as design and implementation of an affordable hardware for the application. In the thesis we have defined the beamforming methods, localizing principles and developed hardware in technology. Design and implementation of DSP algorihms always have some difficaulties which rose from developing the IP cores to signaling and Real-time processing issues. In this thesis we have solved almost the entire problem and have introduced new hardware-oriented beamforming approach to reduce the complexity of the design using angular beamforming. Angular beamforming approach uses 4 microphones in a circular array to reduce the required amount of memories and processing power. Due to the structure of the circular array, the required delays of the 4 quartile are actually the same. By and large, our target in this thesis is to implement a robust and low cost localization algorithm in hardware. Throuhgout the hamlet, we have disclosed our strategies in implementation of the algorithm in software / hardware
  9. Keywords:
  10. Field Programmable Gate Array (FPGA) ; Application Specific Integrated Circuit (ASIC) ; Sound Source Localization ; Very Large Scale Integration (VLSI)Circuits

 Digital Object List

  • محتواي پايان نامه
  •   view

 Bookmark