Tristan Gerritsen

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This paper presents a vision-based navigation solution for unmanned aircraft operations on airfield surfaces in GPS-denied environments. The Unmanned Aircraft System Ground Operations Management System (UGOMS) described here combines measurements from a computer vision system and inertial sensors with an airport layout database to provide real-time position(More)
This paper describes the development of a Thevenin model of the human voice for mask speech intelligibility testing. The following steps were used to develop the Thevenin model: (1) the long-term average speech spectrum of ten male speakers was measured; (2) the corresponding average vocal tract shape was estimated using linear prediction; (3) a Thevenin(More)
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