Abstract
The noise of motor vehicles is one of the most important problems as
regards to pollution on main roads. However, this unpleasant
characteristic could be used to determine vehicle speed by external
observers. Building on this idea, the present study investigates the
capabilities of a microphone array system to identify the position and
velocity of a vehicle travelling on a previously established route. Such
linear microphone array has been formed by a reduced number of microphones
working at medium frequencies as compared to industrial microphone arrays
built for location purposes, and operates with a processing algorithm that
ultimately identifies the noise source location and reduces the error in
velocity estimation
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