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Methods, devices and systems for receiving and decoding a signal in the presence of noise using slices and warping

  • US 9,270,503 B2
  • Filed: 09/19/2014
  • Issued: 02/23/2016
  • Est. Priority Date: 09/20/2013
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • receiving a signal, by an analog front-end of a receiver, the signal encoding a data packet;

    sampling, by and analog-to-digital converter, the received signal;

    generating, by a controller, and storing, by the controller in a memory coupled to the controller, a plurality of slices comprising pairs of values for each of a selected number of samples of the signal;

    detecting, by the controller, a presence of and decoding, by the controller, the data packet from the stored slices;

    forming, by the controller, a filter having a predetermined pass-band by combining, by the controller, a number of the plurality of slices; and

    re-tuning, by the controller, a center frequency of the filter from a first center frequency to a second center frequency that is different from the first center frequency using the stored slices by warping the stored slices from which the filter was formed by rotating the respective pairs of values by a quantity.

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