Patent Document ID: 8072383
Application ID: 12471525
Patent Flag: 1

Claim One:
1. A method of multicarrier modulation position determination including: deploying at least one known receiver with a known location; deploying a second receiver with an unknown location; obtaining at least two signals of opportunity by both the known receiver and the second receiver; the signals generated by at least two transmitters with different locations; the signals having a plurality of block data, the block data having block boundaries, the block boundaries including a beginning block boundary and an end block boundary, the block data further including a cyclic prefix at the beginning block boundary; acquiring a plurality of data samples for at least a portion of the block data; correlating the obtained signals of opportunity between the receivers, the correlating process including calculating a time difference of arrival between the known receiver and the second receiver; the time difference of arrival calculated by aligning the block boundaries and, computing a single scalar statistical feature associated with each block data to create a plurality of scalar statistical features, correlating the plurality of scalar features between the receivers to calculate a time difference of arrival for the known receiver and the second receiver; calculating the location of the second receiver using the time difference of arrival.