OpenRTX/scripts/plot_m17_demod_csv2.py

#! /usr/bin/env python3
#
# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: Copyright 2020-2026 OpenRTX Contributors

import pandas as pd
from matplotlib import pyplot as plt
from sys import argv

plt.rcParams["figure.autolayout"] = True
df = pd.read_csv(argv[1])
#df = df.head(n=10000)
print("Contents in csv file:\n", df)
plt.plot(df.index, df.RRCSignal)
plt.plot(df.index, df.SyncDetect)
plt.plot(df.index, df.QntMax)
plt.plot(df.index, df.QntMin)
plt.plot(df.index, df.Symbol)
plt.show()
Add M17 demodulator code and tests Added implementation of the M17 4FSK demodulator, including clock recovery, phase detection, and quantization algorithms. A testsuite is also included to do regression testing against a reference baseband pre-generated and the corresponding reference bitstream. A 1% BER is still present due to a fault likely in the RRC filtering, since the eye diagram of the filtered stream is bad. TG-81 2021-12-22 21:00:55 +01:00			`#! /usr/bin/env python3`
copyright-and-license: adopt SPDX-compliant header This change removes the old copyright header from project sources and replaces it with a new simplified SPDX-compliant header. Note that files that were missing the header but reasonably understood to be licensed according to the root license were not corrected. Signed-off-by: Ryan Turner <ryan@turnrye.com> 2025-10-16 09:59:12 -05:00			`#`
			`# SPDX-License-Identifier: GPL-3.0-or-later`
			`# SPDX-FileCopyrightText: Copyright 2020-2026 OpenRTX Contributors`
Add M17 demodulator code and tests Added implementation of the M17 4FSK demodulator, including clock recovery, phase detection, and quantization algorithms. A testsuite is also included to do regression testing against a reference baseband pre-generated and the corresponding reference bitstream. A 1% BER is still present due to a fault likely in the RRC filtering, since the eye diagram of the filtered stream is bad. TG-81 2021-12-22 21:00:55 +01:00
			`import pandas as pd`
			`from matplotlib import pyplot as plt`
Fine tune demodulator to OpenRTX M17 baseband Fine tuned M17 demodulator with code generated from OpenRTX itself. TG-81 2021-12-26 15:42:41 +01:00			`from sys import argv`
Add M17 demodulator code and tests Added implementation of the M17 4FSK demodulator, including clock recovery, phase detection, and quantization algorithms. A testsuite is also included to do regression testing against a reference baseband pre-generated and the corresponding reference bitstream. A 1% BER is still present due to a fault likely in the RRC filtering, since the eye diagram of the filtered stream is bad. TG-81 2021-12-22 21:00:55 +01:00
			`plt.rcParams["figure.autolayout"] = True`
Fine tune demodulator to OpenRTX M17 baseband Fine tuned M17 demodulator with code generated from OpenRTX itself. TG-81 2021-12-26 15:42:41 +01:00			`df = pd.read_csv(argv[1])`
			`#df = df.head(n=10000)`
Add M17 demodulator code and tests Added implementation of the M17 4FSK demodulator, including clock recovery, phase detection, and quantization algorithms. A testsuite is also included to do regression testing against a reference baseband pre-generated and the corresponding reference bitstream. A 1% BER is still present due to a fault likely in the RRC filtering, since the eye diagram of the filtered stream is bad. TG-81 2021-12-22 21:00:55 +01:00			`print("Contents in csv file:\n", df)`
			`plt.plot(df.index, df.RRCSignal)`
			`plt.plot(df.index, df.SyncDetect)`
			`plt.plot(df.index, df.QntMax)`
			`plt.plot(df.index, df.QntMin)`
			`plt.plot(df.index, df.Symbol)`
			`plt.show()`