Patent ID: 7436188
Filing Date: 2008-10-14
Classification: G10K

Abstract:
1. A method for time domain processing of signals from a plurality of sensors, the method comprising: obtaining from the plurality of sensors a plurality of corresponding input signals each representable by an input vector having phase and magnitude components; applying each of the input signals to each filter of a bank of bandpass frequency discrimination filters, such that each filter of said bank generates a plurality of filtered signals each of which corresponds to an input signal from a sensor; generating, for each filter, an instantaneous phase angle difference value representative of the phase angle difference between the plurality of filtered signals from that filter; enhancing the phase component of each filtered signal by an enhancement value which is a function of the instantaneous phase angle difference value associated with that filter to thereby obtain enhanced output signals, said enhancing including attenuation of the output signals; and combining the enhanced output signals.