LOCALIZATION METHOD OF SOURCE OF UNKNOWN SIGNAL BASED ON TDOA METHOD
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United States of America Patent
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Issued Date -
Mar 6, 2014
app pub date -
Apr 5, 2013
filing date -
Sep 3, 2012
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Abandoned
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Abstract
Disclosed is a localization method of a source of unknown signal based on a TDOA method, comprising a data obtaining step S100 of receiving and obtaining the unknown signal using multiple sensors; an objective function value calculating step S200 of finding a cross-correlation value, and calculating an objective function value; a reference sensor selecting step S300 of selecting a reference sensor for calculating a TDOA measurement value; a TDOA measurement value calculating step S400 of finding a time when a cross-correlation value Rri(τ) found by performing cross-correlation of signal received in each of the reference sensor selected and an i-th sensor with respect to a delay time τ becomes maximum; and a location estimating step S500 of localizing the source of unknown signal. Therefore, the present invention can precisely localize the source of the unknown signal.
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