Lokalizace zdrojů akustických signálů

Abstract

This doctoral thesis is focused on the sound source localization. The theoretical principles of the localization are described in the first part of the thesis. Also there are described microphone arrays, digital signal processors, Fourier transformation and analog filters. In the last part of this thesis a functional design has been described. Its main task is measuring and processing audio signals and find directions of the audio signal arrival. The functional design includes a microphone array with 9 microphones, electronic circuit board for microphone power supply, a signal amplifier, a signal filtration and also digital signal processor ADSP 21469 extended by the Daughter Board includes up to 12 analog inputs. Totally 5 algorithms for sound source localization have been designed and tested.