Method and system for determining a time difference, method and system for finding a position of a transmitter
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United States of America Patent
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Jun 23, 2015
Grant Date -
May 2, 2013
app pub date -
Dec 21, 2012
filing date -
Jun 25, 2010
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Abstract
A method for determining a time difference between a first and a second time of arrival of the signal is described, the method including: receiving a first representation of the signal at the first time of arrival; receiving a second representation of the signal at the second time of arrival; correlating at least a first time-domain representation of the signal and a second time-domain representation of the signal to obtain a first time difference information; evaluating a phase difference relation between a first frequency-domain representation of the signal and a second frequency-domain representation of the signal to obtain a second time difference information; and determining the time difference between the first and the second time of arrival of the signal based on the first and the second time difference information, or based on a time difference information derived from the first time difference information and the second time difference information.
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