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Multi-dynamic multi-envelope receiver

  • US 7,885,355 B2
  • Filed: 10/15/2007
  • Issued: 02/08/2011
  • Est. Priority Date: 10/15/2007
  • Status: Active Grant
First Claim
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1. A method of improving the effective linearity of a receiver that is processing a signal comprising at least a payload component and an interference component, said payload component being within a frequency band, at least a first part of said interference component being outside said frequency band, the method comprising the steps of:

  • (a) converting a first portion of said signal inside said frequency band to form a relatively narrow band, high-resolution first converted signal;

    (b) converting a second portion of said signal including said noise component outside said frequency band to form a relatively wide band, low-resolution second converted signal; and

    (c) extracting said payload component from said first converted signal using said interference component derived from said second converted signal to form a filtered signal.

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