Method and system of timing and localizing a radio signal
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United States of America Patent
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Aug 18, 2020
Grant Date -
Jan 25, 2018
app pub date -
Jun 16, 2017
filing date -
Jul 20, 2016
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Abstract
Method of timing, in a receiver, a radio signal generated in and transmitted from a transmitter, the radio signal comprising a series of frequency chirps, the system including: receiving the radio signal from the transmitter; synthesizing projection vectors comprising a series of frequency chirps that are a complex-conjugate image of those comprised in the radio signal the projection vectors being time-shifted relative to one another by determined shift intervals of time; multiplying the received radio signal by the projection vectors and accumulating the results; interpolating the accumulating results to determine a peak time shift.
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