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A multi-threaded brain control interface (BCI) library in C#
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DSPLib.FFT Class Reference

Performs an in-place complex FFT. More...

Public Member Functions

 FFT ()
 FFT Class More...
 
void Initialize (UInt32 inputDataLength, UInt32 zeroPaddingLength=0)
 Initialize the FFT. More...
 
Complex[] Execute (double[] timeSeries)
 Executes a FFT of the input time series. More...
 
double[] FrequencySpan (double samplingFrequencyHz)
 Return the Frequency Array for the currently defined FFT. More...
 

Detailed Description

Performs an in-place complex FFT.

Released under the MIT License

Core FFT class based on, Fast C# FFT - Copyright (c) 2010 Gerald T. Beauregard

Changes to: Interface, scaling, zero padding, return values. Change to .NET Complex output types and integrated with my DSP Library. Note: Complex Number Type requires .NET >= 4.0

These changes as noted above Copyright (c) 2016 Steven C. Hageman

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

FFT Base Class

Constructor & Destructor Documentation

DSPLib.FFT.FFT ( )

FFT Class

Member Function Documentation

Complex [] DSPLib.FFT.Execute ( double[]  timeSeries)

Executes a FFT of the input time series.

Parameters
timeSeries
Returns
Complex[] Spectrum
double [] DSPLib.FFT.FrequencySpan ( double  samplingFrequencyHz)

Return the Frequency Array for the currently defined FFT.

Takes into account the total number of points and zero padding points that were defined.

Parameters
samplingFrequencyHz
Returns
void DSPLib.FFT.Initialize ( UInt32  inputDataLength,
UInt32  zeroPaddingLength = 0 
)

Initialize the FFT.

Must call first and this anytime the FFT setup changes.

Parameters
inputDataLength
zeroPaddingLength
The documentation for this class was generated from the following file: