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WIRELESS LOCALISATION SYSTEM

  • US 20140194142A1
  • Filed: 07/20/2011
  • Published: 07/10/2014
  • Est. Priority Date: 07/20/2011
  • Status: Active Grant
First Claim
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1. An apparatus for estimating the location of a remote node, the apparatus comprising:

  • an antenna array comprising a plurality of elements in a fixed spatial arrangement, at least one element being a transmitting element configured to transmit a first wireless signal to the remote node, and at least two elements being receiving elements configured to receive a second wireless signal transmitted by the remote node in response to the first wireless signal; and

    a signal processing unit connected to the antenna array, the signal processing unit being configured to;

    to estimate a plurality of round trip distances using the wireless signals, each round trip distance being from a transmitting element to the remote node and back to a receiving element; and

    estimate the location of the remote node using the round trip distance estimates.

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