FIELD: physics.
SUBSTANCE: parameters of a modulated signal (AM and FM) are calculated from an array of discrete data via Fourier and Hilbert transformation. The following are simultaneously measured: amplitude modulation (AM) depth - the peak value a given frequency band, frequency deviation - the peak value in a given frequency range, AM depth - the mean-square value in a given frequency band, frequency deviation - the mean-square value in a given frequency band, carrier frequency (central frequency), frequency of the AM and/or FM modulating signal, nonlinear distortion coefficient of the AM and/or FM modulating signal.
EFFECT: simple hardware component of the device with broadening of functional capabilities at the same time.
3 dwg
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Authors
Dates
2011-07-20—Published
2010-04-05—Filed