Initial commit (project based on widgets)

digitalfiltering.h

@@ -0,0 +1,48 @@
+/*
+    Original copyright 2018 Benjamin Vedder benjamin@vedder.se and the VESC Tool project ( https://github.com/vedderb/vesc_tool )
+
+    Forked to:
+    Copyright 2018 Danny Bokma github@diebie.nl (https://github.com/DieBieEngineering/DieBieMS-Tool)
+
+    Now forked to:
+    Copyright 2019 - 2020 Kevin Dionne kevin.dionne@ennoid.me (https://github.com/EnnoidMe/ENNOID-BMS-Tool)
+
+    This file is part of ENNOID-BMS Tool.
+
+    ENNOID-BMS Tool is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    ENNOID-BMS Tool is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef DIGITALFILTERING_H
+#define DIGITALFILTERING_H
+
+#include <QVector>
+
+class DigitalFiltering
+{
+public:
+    DigitalFiltering();
+
+    static void fft(int dir,int m,double *real,double *imag);
+    static void dft(int dir, int len, double *real, double *imag);
+    static void fftshift(double *data, int len);
+    static void hamming(double *data, int len);
+    static void zeroPad(double *data, double *result, int dataLen, int resultLen);
+    static int whichPowerOfTwo(unsigned int number);
+
+    static QVector<double> filterSignal(const QVector<double> &signal, const QVector<double> &filter, bool padAfter = false);
+    static QVector<double> generateFirFilter(double f_break, int bits, bool useHamming);
+    static QVector<double> fftWithShift(QVector<double> &signal, int resultBits, bool scaleByLen = false);
+};
+
+#endif // DIGITALFILTERING_H