Dynamic baseband module loading from SD card

2026-09-14 02:29:29 +00:00 · 2015-11-20 07:59:09 +01:00
parent 835d581e6c
commit 5f60b004f7
82 changed files with 8041 additions and 580 deletions
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
+ *
+ * This file is part of PortaPack.
+ *
+ * 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, 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; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __CHANNEL_DECIMATOR_H__
+#define __CHANNEL_DECIMATOR_H__
+
+#include "buffer.hpp"
+#include "complex.hpp"
+
+#include "dsp_decimate.hpp"
+
+#include <array>
+
+class ChannelDecimator {
+public:
+	enum class DecimationFactor {
+		By4,
+		By8,
+		By16,
+		By32,
+	};
+
+	constexpr ChannelDecimator(
+	) : decimation_factor { DecimationFactor::By32 }
+	{
+	}
+	
+	constexpr ChannelDecimator(
+		const DecimationFactor decimation_factor
+	) : decimation_factor { decimation_factor }
+	{
+	}
+
+	void set_decimation_factor(const DecimationFactor f) {
+		decimation_factor = f;
+	}
+
+	buffer_c16_t execute(buffer_c8_t buffer) {
+		auto decimated = execute_decimation(buffer);
+
+		return decimated;
+	}
+
+private:
+	std::array<complex16_t, 1024> work_baseband;
+
+	//const bool fs_over_4_downconvert = true;
+
+	dsp::decimate::TranslateByFSOver4AndDecimateBy2CIC3 translate;
+	//dsp::decimate::DecimateBy2CIC3 cic_0;
+	dsp::decimate::DecimateBy2CIC3 cic_1;
+	dsp::decimate::DecimateBy2CIC3 cic_2;
+	dsp::decimate::DecimateBy2CIC3 cic_3;
+	dsp::decimate::DecimateBy2CIC3 cic_4;
+
+	DecimationFactor decimation_factor;
+
+	buffer_c16_t execute_decimation(buffer_c8_t buffer);
+};
+
+#endif/*__CHANNEL_DECIMATOR_H__*/