An Ultrasonic Tracking System for a Personal Sound Zone Simulator.: An implementation using Direction of Arrival and Uniform Circular Arrays.
Translated title
An Ultrasonic Tracking System for a Personal Sound Zone Simulator.
Author
Dahl, Nanna Godiksen
Term
4. Term
Education
Publication year
2017
Pages
56
Abstract
This thesis investigates an ultrasonic tracking system for a personal sound zone simulator using direction of arrival (DoA) estimation with a uniform circular sensor array. The work situates the project within existing approaches to personal sound zones (focusing, canceling, and sound field synthesis) and motivates applications in everyday settings. As part of the project, an amplifier for six ultrasonic sensors, a 3D-printed sensor mount, and a DoA algorithm were developed. Simulations of the algorithm indicated that the approach should be feasible with ultrasonic sensors. However, hardware tests did not yield a working system; results were unsatisfactory due to issues with the sensor amplifier. These issues must be resolved before a firm conclusion can be drawn about the practical viability of the proposed method.
Dette speciale undersøger et ultrasonisk tracking-system til en personlig lydzone-simulator baseret på retningsbestemmelse (Direction of Arrival, DoA) med en uniform cirkulær array af sensorer. Arbejdet sætter projektet i kontekst af eksisterende metoder til personlige lydzoner (fokusering, annullering og lydfeltsyntese) og motiverer anvendelser i hverdagsmiljøer. Som led i projektet blev der udviklet en forstærker til seks ultralydssensorer, en 3D-printet sensorholder og en algoritme til DoA-estimering. Simuleringer af algoritmen indikerede, at tilgangen kan være realiserbar med ultralydssensorer. Fysiske tests resulterede dog ikke i et fungerende system; resultaterne var utilfredsstillende på grund af problemer med sensorenes forstærker. Disse problemer skal løses, før der kan drages en endelig konklusion om metodens praktiske anvendelighed.
[This apstract has been generated with the help of AI directly from the project full text]