Communications – electrical: acoustic wave systems and devices – Testing – monitoring – or calibrating
Statutory Invention Registration
2006-03-07
2006-03-07
Pihulic, Daniel (Department: 3662)
Communications, electrical: acoustic wave systems and devices
Testing, monitoring, or calibrating
Statutory Invention Registration
active
H0002146
ABSTRACT:
A method of determining long term power variation, as an indication of long term stability of power output, by steps of measuring power output at successive intervals of time, determining variations in power output, from an average power output, at corresponding intervals of time, making a Fourier transform of each variation in power output, calculating a power spectral density from each Fourier transform, plotting a log of each power spectral density, extrapolating the plot to find a value, designated as a log of a power spectral density, from the plot, calculating a power spectral density from the found value of the log of the power spectral density, and making an inverse Fourier transform of the calculated power spectral density, to determine the long term power variation.
Burnfield Robert N.
Meister Larry E.
Stubbs David R.
Hollis Darrell E.
Pihulic Daniel
Tarlano John P.
United States of America
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