Acoustic Source Localization
Joshua York Undergraduate Research Project
Washington University Summer/Fall 2008

Conclusions

Washington University Fall 08'

The discoveries made in the ambiguity/resolution problem of this experiment were very important to the future of the research. With a better understanding of the system on a fundamental level we are able to expand the experiment to meet new goals. Since the experiment is ongoing, there is still much to be done. The GUI will continue to be updated with new features and fixes. Additionally there are currently several approaches being used by the group to calculate the SNR for each microphone. This function is being worked into an additional graphically based tool that will be added to the GUI next semester. There are a variety of directions we would like to move the research and set up in. We would like to change the geometry in attempt to calculate positions in 3D, while using the same basic concepts as before. This expansions leads to more real world applications of system. We would also like to change the system to a more active signal processing version. In this case we will be mounting the emitting speaker to project away from the array so that we may use the reflecting echoes to create an image much like sonar or ultrasound. The following list details the plans for next semester Spring 09'

  • Add Graphical SNR Tool
  • Alter Array Geometry to Estimate in 3D
  • Convert the Array to Active Form for Ultra Sound