PPS tagging of acoustic sample data
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United States of America Patent
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Jul 21, 2020
Grant Date -
Feb 2, 2017
app pub date -
Jul 29, 2015
filing date -
Jul 29, 2015
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Abstract
Technologies are described herein for time-synchronizing sample data from independent recording devices utilizing samples tagged from a highly accurate time source. Datasets comprising samples representing a signal over a period of time are received from separate recording devices. A number of samples in each dataset are tagged indicating that the sample was taken immediately after a pulse in a PPS signal from a highly accurate time source onboard the recording device. The indices of the PPS-tagged samples, along with corresponding time values, are extracted from the datasets, and a set of common time values between the datasets is determined. A pair of frames of a specific length are extracted from each dataset aligned on the PPS-tagged samples corresponding to the common time values and comparative analysis is performed on the pair of frames.
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