| 摘要 |
<p>An apparatus for determining the amplitude of an input signal that changes sinusoidally comprises a representative value computing unit configured to compute a statistical representative value of a distribution of the input value that is sampled, wherein the statistical representative value includes at least one of a mean value, a median value, mode value, a standard deviation and quartiles; and an amplitude computing unit configured to compute the amplitude of the input signal based on the statistical representative value. In one embodiment the amplitude computing apparatus includes: a mean or median value computing unit (11) configured to compute a mean or median value of a distribution of an input signal that changes sinusoidally; a mode value computing unit (12) configured to compute a mode value of the distribution of the input signal; and an amplitude computing unit (13) configured to compute a difference between the mean or median value and the mode value as an amplitude of the input signal.
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