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https://github.com/eried/portapack-mayhem.git
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291de8f869
Move FFT bit-reversal to complex<int16_t> -> complex<float> copy. Change window so that adjacent bins have constant(-ish) gain. Change window to float. Change time domain samples to accumulate at even intervals over the FFT interval.
42 lines
1.2 KiB
C++
42 lines
1.2 KiB
C++
/*
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* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
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*
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* This file is part of PortaPack.
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*
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* This program 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 2, or (at your option)
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* any later version.
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*
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* This program 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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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __PROC_WIDEBAND_SPECTRUM_H__
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#define __PROC_WIDEBAND_SPECTRUM_H__
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#include "baseband_processor.hpp"
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#include <cstddef>
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#include <array>
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#include <complex>
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class WidebandSpectrum : public BasebandProcessor {
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public:
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void execute(buffer_c8_t buffer) override;
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private:
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size_t sample_count = 0;
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std::array<std::complex<float>, 256> spectrum;
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};
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#endif/*__PROC_WIDEBAND_SPECTRUM_H__*/
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