| 摘要 |
A method extracts information from a signal, the signal having properties which vary with respect to time. The signal includes a finite number of component signals, the component signals in combination defining the signal. The method analyzes the signal to determine the component signals. The signal analysis includes defining a signal analysis sample interval, the signal analysis sample interval being within a boundary, wherein at least one component signal is included within the signal analysis sample interval. The method transforms the signal over the signal analysis sample interval using a transform method to produce a transform of the signal consisting of transform coefficients. The method fits a function having real and imaginary parameters to a number of transform coefficients to determine a best fit function within the signal analysis sample interval. A mathematical operation performed on the best fit function yields parameter information within the signal analysis sample interval. The method extracts at least one parameter resulting from the mathematical operation, the parameter representing a characteristic of a component signal.
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