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专利名称：IMPROVED METHOD FOR ESTIMATING
TDOA AND FDOA IN A WIRELESS LOCATIONSYSTEM
发明人：ANDERSON, ROBERT, J.,ROGERS, ALAN, E.,
E.,STILP, LOUIS, A.
申请号：EP02714730申请日：20020110公开号：EP1417847A4公开日：20060208
摘要：A method, used in locating a mobile transmitter, includes providing a set ofcross-correlation values, wherein each cross-correlation value is associated with acorresponding TDOA and/or FDOA estimae and is produced by cross-correlating areference signal with a cooperating signal (fig. 5). The reference signal comprises a copyof a signal transmitted by the mobile transmitter as received at a first antenna and thecooperating signal comprises a copy of the same signal as received at a second antenna.The method further includes determining a most likely range of TDOA and/or FDOAestimates, and then identifying an optimal cross-correlation value within a subset ofcross-correlation values (fig. 10) corresponding to the most likely range of TDOA and/orFDOA estimates. The TDOA and/or FDOA value corresponding to the optimal cross-correlation value is then employed in calculating the location of the mobile transmitter.
申请人：TRUEPOSITION, INC.,MASSACHUSETTS INSTITUTE OF TECHNOLOGY
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