Abstract
The presentation addresses the localization of a punctual, impulse sound source with distributed sensors in an urban area of typical size 150mx150m. In the considered approach, the source is localized by matching some observed characteristics of the signals (here, the first times-of-arrival) to those obtained from a pre-defined database of simulations with known source positions. The localization performance is analyzed on the basis of small-scale model and real-scale measurements, with various building heights, source positions, combinations from 15 down to 5 microphones. The time matching localization attains an accuracy of 10 m in the vast majority of the configurations. A confidence level for each localization is satisfactorily tested. The robustness to the buildings height and to the urban map is evaluated. Adaptations of the approach to real-time constraints and to shot and shooter localizations are demonstrated.
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