Summary
Performs signal decimation.
Unit
SignalProcessing
Hierarchy
TAnalysis <--TSignal <--TSignalMultiRate <--TSignalDecimator
Direct subclasses
TSignalDemodulator, TSignalEnvelopeDetector
Description
Signal decimation component. Use this component to lower the sampling frequency of the signal by powers of two using fast multi-rate, multi-stage filters (See [1]). The component also features a high quality envelope detection, which computes the absolute value of the source signal before the decimation. Decimation factors can be as high as 1024 or 4096. This makes it possible to detect very low frequencies with the envelope detector. The CPU load increases by only about twice when the decimation factor is increased from 2 to any number (can be 1024).
| See Also |
|---|
| [1] "Understanding digital signal processing.", Richard G. Lyons, Prentice-Hall, 2001. |
| TSignalInterpolator |
| TBandlimitedInterpolator |
| TSignalRateConverter |
Properties
Methods
| Copyright 2008 Dew Research |
http://www.dewresearch.com 
TSignalDecimator Component