49 lines
1.9 KiB
C++
49 lines
1.9 KiB
C++
/*
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Original copyright 2018 Benjamin Vedder benjamin@vedder.se and the VESC Tool project ( https://github.com/vedderb/vesc_tool )
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Forked to:
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Copyright 2018 Danny Bokma github@diebie.nl (https://github.com/DieBieEngineering/DieBieMS-Tool)
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Now forked to:
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Copyright 2019 - 2020 Kevin Dionne kevin.dionne@ennoid.me (https://github.com/EnnoidMe/ENNOID-BMS-Tool)
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This file is part of ENNOID-BMS Tool.
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ENNOID-BMS Tool is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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ENNOID-BMS Tool is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef DIGITALFILTERING_H
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#define DIGITALFILTERING_H
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#include <QVector>
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class DigitalFiltering
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{
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public:
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DigitalFiltering();
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static void fft(int dir,int m,double *real,double *imag);
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static void dft(int dir, int len, double *real, double *imag);
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static void fftshift(double *data, int len);
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static void hamming(double *data, int len);
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static void zeroPad(double *data, double *result, int dataLen, int resultLen);
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static int whichPowerOfTwo(unsigned int number);
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static QVector<double> filterSignal(const QVector<double> &signal, const QVector<double> &filter, bool padAfter = false);
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static QVector<double> generateFirFilter(double f_break, int bits, bool useHamming);
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static QVector<double> fftWithShift(QVector<double> &signal, int resultBits, bool scaleByLen = false);
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};
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#endif // DIGITALFILTERING_H
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