WIRELESS POSITIONING

专利名称：WIRELESS POSITIONING发明人：HEDLEY, MARK申请号：EP13788246申请日：20130507公开号：EP2847611A4公开日：20160817

摘要：This disclosure concerns estimating the location of a transmitter using multiplepairs of locator nodes with known locations and measuring time of arrival of a signalreceived from a transmitter. A processor of a location estimation node first determinestime difference of arrival values from time of arrival values measured by each pair oflocator nodes. The processor then determines likelihood information for multiplecandidate locations of the transmitter and estimates the location of the transmitter fromthe likelihood information. A processor further determines an initial time of arrival valuefor the received signal and channel impulse response for a radio channel between thetransmitter and receiver. The processor then determines a time correction from thechannel impulse response based on a first peak of the channel impulse response and aleading edge of the first value. The processor finally determines an improved time ofarrival value of the received signal.

申请人：COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION

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