Computer-implemented method for filtering at least one useful signal from at least one noisy acoustic input signal received from at least one acoustic sensor

Abstract

A computer-implemented method for filtering at least one useful signal from at least one noisy acoustic signal of an input signal, includes receiving, from at least one acoustic sensor, the input signal, wherein the at least one useful signal is designed as a siren signal, wherein the input signal is noisy due to wind noise, tire rolling noise, or vehicle internal noise, and a noise component of the input signal masks the at least one useful signal contained in the input signal. The method further includes applying at least one correlation function to the input signal, wherein the correlation function is applied iteratively to result data of the correlation function to increase a signal-to-noise ratio of the input signal.

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