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TSignalEnvelopeDetector Class
published | TSignalEnvelopeDetector Members | SignalProcessing | Classes
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Demodulates a signal.

Class Hierarchy
SignalProcessing_TSignalEnvelopeDetectorSignalProcessing_TSignalEnvelopeDetectorSignalProcessing_TSignalEnvelopeDetectorSignalProcessing_TSignalEnvelopeDetectorSignalProcessing_TSignalEnvelopeDetectorSignalProcessing_TSignalEnvelopeDetector
Pascal
TSignalEnvelopeDetector = class(TSignalDecimator);
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Description

Uses a hilbert transformer filter to get 90 degrees phase shifted version of the original and then forms the envelope like this: 

envelope[i] = sqrt(sqr(X[i-HilbertDelay]) + sqr(Y[i]));

This is an alternative way to detect the envelope in comparison to the method offered by TSignalDecimator. This approach is slower, but could result in significant noise reduction.

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