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Equaliser for digital communications systems and method of equalisation

  • US 7,254,171 B2
  • Filed: 05/04/2001
  • Issued: 08/07/2007
  • Est. Priority Date: 01/20/2000
  • Status: Expired due to Fees
First Claim
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1. A method of channel equalisation comprising:

  • receiving a data stream generated from a plurality of space time coded (STC) data streams received from a plurality of transmit antenna elements;

    generating via a fast transform a packet spectrum of at least a portion of the data stream, the packet spectrum being a transform domain representation;

    receiving a training sequence for a channel through which the data stream has been sent and assessing a channel impulse response for the channel based on the training sequence;

    generating via a fast transform a channel impulse response spectrum in the transform domain for the channel impulse response;

    equalising the packet spectrum with the channel impulse response spectrum to produce an equalised packet spectrum in the transform domain; and

    converting the equalised packet spectrum into time domain equalised data for recovery of information.

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