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University of Kentucky

Theses/Dissertations

2007

Atomic Physics|Electron Impact Ionization|Autoionization|(e

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Helium (E, 2e) Coplanar And Out-Of-Plane Experiments, Bruno A. Deharak Jan 2007

Helium (E, 2e) Coplanar And Out-Of-Plane Experiments, Bruno A. Deharak

University of Kentucky Doctoral Dissertations

The detection of sound sources with microphone arrays can be enhanced through processing individual microphone signals prior to the delay and sum operation. One method in particular, the Phase Transform (PHAT) has demonstrated improvement in sound source location images, especially in reverberant and noisy environments. Recent work proposed a modification to the PHAT transform that allows varying degrees of spectral whitening through a single parameter, andamp;acirc;, which has shown positive improvement in target detection in simulation results. This work focuses on experimental evaluation of the modified SRP-PHAT algorithm. Performance results are computed from actual experimental setup of an 8-element perimeter …