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Cognitive signal processor for simultaneous denoising and blind source separation

  • US 10,128,820 B2
  • Filed: 11/20/2017
  • Issued: 11/13/2018
  • Est. Priority Date: 03/19/2015
  • Status: Active Grant
First Claim
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1. A cognitive signal processor for signal denoising and blind source separation, the cognitive signal processor comprising:

  • one or more processors configured to perform operations of;

    receiving a mixture signal that comprises a plurality of source signals;

    generating a denoised reservoir state signal by mapping the mixture signal to a dynamic reservoir to perform signal denoising; and

    identifying at least one separated source signal by adaptively filtering the denoised reservoir state signal;

    wherein adaptively filtering the denoised reservoir state signal further comprises operations of;

    detecting that a particular frequency band possesses a pulse;

    switching a first filter to a tracking state with a center frequency equal to a resonant frequency of a reservoir state corresponding to the particular frequency band; and

    setting the center frequency of the first filter as a protected region to prevent other filters within a bank of filters from sharing the center frequency.

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