kopia lustrzana https://github.com/f4exb/sdrangel
53 wiersze
1.7 KiB
C++
53 wiersze
1.7 KiB
C++
/* fir.h
|
|
|
|
This file is part of a program that implements a Software-Defined Radio.
|
|
|
|
Copyright (C) 2013, 2016, 2022 Warren Pratt, NR0V
|
|
Copyright (C) 2024 Edouard Griffiths, F4EXB Adapted to SDRangel
|
|
|
|
This program 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 2
|
|
of the License, or (at your option) any later version.
|
|
|
|
This program 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, write to the Free Software
|
|
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
|
|
The author can be reached by email at
|
|
|
|
warren@pratt.one
|
|
|
|
*/
|
|
#ifndef wdsp_fir_h
|
|
#define wdsp_fir_h
|
|
|
|
#include "export.h"
|
|
|
|
namespace WDSP {
|
|
|
|
class WDSP_API FIR
|
|
{
|
|
public:
|
|
static float* fftcv_mults (int NM, float* c_impulse);
|
|
static float* fir_fsamp_odd (int N, float* A, int rtype, float scale, int wintype);
|
|
static float* fir_fsamp (int N, float* A, int rtype, float scale, int wintype);
|
|
static float* fir_bandpass (int N, float f_low, float f_high, float samplerate, int wintype, int rtype, float scale);
|
|
static float* get_fsamp_window(int N, int wintype);
|
|
static float *fir_read (int N, const char *filename, int rtype, float scale);
|
|
static void mp_imp (int N, float* fir, float* mpfir, int pfactor, int polarity);
|
|
static float* zff_impulse(int nc, float scale);
|
|
|
|
private:
|
|
static void analytic (int N, float* in, float* out);
|
|
};
|
|
|
|
#endif
|
|
|
|
} // namespace WDSP
|