kopia lustrzana https://github.com/NanoVNA-Saver/nanovna-saver
125 wiersze
4.8 KiB
Python
125 wiersze
4.8 KiB
Python
# NanoVNASaver
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#
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# A python program to view and export Touchstone data from a NanoVNA
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# Copyright (C) 2019, 2020 Rune B. Broberg
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# Copyright (C) 2020,2021 NanoVNA-Saver Authors
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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 3 of the License, or
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# (at your option) 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. If not, see <https://www.gnu.org/licenses/>.
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import logging
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from PyQt5 import QtWidgets
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import numpy as np
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from NanoVNASaver.Analysis.Base import Analysis, QHLine
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from NanoVNASaver.Formatting import format_frequency
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logger = logging.getLogger(__name__)
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class SimplePeakSearchAnalysis(Analysis):
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def __init__(self, app):
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super().__init__(app)
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self._widget = QtWidgets.QWidget()
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outer_layout = QtWidgets.QFormLayout()
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self._widget.setLayout(outer_layout)
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self.rbtn_data_group = QtWidgets.QButtonGroup()
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self.rbtn_data_vswr = QtWidgets.QRadioButton("VSWR")
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self.rbtn_data_resistance = QtWidgets.QRadioButton("Resistance")
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self.rbtn_data_reactance = QtWidgets.QRadioButton("Reactance")
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self.rbtn_data_s21_gain = QtWidgets.QRadioButton("S21 Gain")
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self.rbtn_data_group.addButton(self.rbtn_data_vswr)
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self.rbtn_data_group.addButton(self.rbtn_data_resistance)
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self.rbtn_data_group.addButton(self.rbtn_data_reactance)
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self.rbtn_data_group.addButton(self.rbtn_data_s21_gain)
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self.rbtn_data_s21_gain.setChecked(True)
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self.rbtn_peak_group = QtWidgets.QButtonGroup()
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self.rbtn_peak_positive = QtWidgets.QRadioButton("Highest value")
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self.rbtn_peak_negative = QtWidgets.QRadioButton("Lowest value")
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self.rbtn_peak_group.addButton(self.rbtn_peak_positive)
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self.rbtn_peak_group.addButton(self.rbtn_peak_negative)
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self.rbtn_peak_positive.setChecked(True)
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self.checkbox_move_marker = QtWidgets.QCheckBox()
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outer_layout.addRow(QtWidgets.QLabel("<b>Settings</b>"))
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outer_layout.addRow("Data source", self.rbtn_data_vswr)
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outer_layout.addRow("", self.rbtn_data_resistance)
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outer_layout.addRow("", self.rbtn_data_reactance)
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outer_layout.addRow("", self.rbtn_data_s21_gain)
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outer_layout.addRow(QHLine())
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outer_layout.addRow("Peak type", self.rbtn_peak_positive)
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outer_layout.addRow("", self.rbtn_peak_negative)
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outer_layout.addRow(QHLine())
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outer_layout.addRow("Move marker to peak", self.checkbox_move_marker)
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outer_layout.addRow(QHLine())
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outer_layout.addRow(QtWidgets.QLabel("<b>Results</b>"))
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self.peak_frequency = QtWidgets.QLabel()
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self.peak_value = QtWidgets.QLabel()
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outer_layout.addRow("Peak frequency:", self.peak_frequency)
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outer_layout.addRow("Peak value:", self.peak_value)
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def runAnalysis(self):
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if not self.app.data.s11:
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return
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s11 = self.app.data.s11
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s21 = self.app.data.s21
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if self.rbtn_data_vswr.isChecked():
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suffix = ""
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data = [d.vswr for d in s11]
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elif self.rbtn_data_resistance.isChecked():
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suffix = " \N{OHM SIGN}"
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data = [d.impedance().real for d in s11]
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elif self.rbtn_data_reactance.isChecked():
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suffix = " \N{OHM SIGN}"
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data = [d.impedance().imag for d in s11]
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elif self.rbtn_data_s21_gain.isChecked():
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suffix = " dB"
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data = [d.gain for d in s21]
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else:
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logger.warning("Searching for peaks on unknown data")
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return
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if len(data) == 0:
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return
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if self.rbtn_peak_positive.isChecked():
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idx_peak = np.argmax(data)
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elif self.rbtn_peak_negative.isChecked():
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idx_peak = np.argmin(data)
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else:
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# Both is not yet in
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logger.warning(
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"Searching for peaks,"
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" but neither looking at positive nor negative?")
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return
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self.peak_frequency.setText(
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format_frequency(self.app.data.s11[idx_peak].freq))
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self.peak_value.setText(str(round(data[idx_peak], 3)) + suffix)
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if self.checkbox_move_marker.isChecked() and self.app.markers:
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self.app.markers[0].setFrequency(
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str(self.app.data.s11[idx_peak].freq))
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self.app.markers[0].frequencyInput.setText(
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format_frequency(self.app.data.s11[idx_peak].freq))
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