kopia lustrzana https://github.com/NanoVNA-Saver/nanovna-saver
181 wiersze
7.7 KiB
Python
181 wiersze
7.7 KiB
Python
# NanoVNASaver - a python program to view and export Touchstone data from a NanoVNA
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# Copyright (C) 2019. Rune B. Broberg
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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 collections
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import math
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from typing import List
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from PyQt5 import QtGui, QtWidgets, QtCore
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from PyQt5.QtCore import pyqtSignal
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Datapoint = collections.namedtuple('Datapoint', 'freq re im')
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class Marker(QtCore.QObject):
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name = "Marker"
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frequency = 0
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color = QtGui.QColor()
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location = -1
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updated = pyqtSignal()
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def __init__(self, name, initialColor, frequency=""):
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super().__init__()
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self.name = name
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if frequency.isnumeric():
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self.frequency = int(frequency)
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self.frequencyInput = QtWidgets.QLineEdit(frequency)
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self.frequencyInput.setAlignment(QtCore.Qt.AlignRight)
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self.frequencyInput.returnPressed.connect(lambda: self.setFrequency(self.frequencyInput.text()))
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################################################################################################################
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# Data display label
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################################################################################################################
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self.frequency_label = QtWidgets.QLabel("")
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self.frequency_label.setMinimumWidth(100)
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self.impedance_label = QtWidgets.QLabel("")
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self.returnloss_label = QtWidgets.QLabel("")
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self.returnloss_label.setMinimumWidth(80)
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self.vswr_label = QtWidgets.QLabel("")
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self.inductance_label = QtWidgets.QLabel("")
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self.capacitance_label = QtWidgets.QLabel("")
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self.gain_label = QtWidgets.QLabel("")
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self.phase_label = QtWidgets.QLabel("")
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self.quality_factor_label = QtWidgets.QLabel("")
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################################################################################################################
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# Marker control layout
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################################################################################################################
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self.btnColorPicker = QtWidgets.QPushButton("█")
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self.btnColorPicker.setFixedWidth(20)
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self.setColor(initialColor)
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self.btnColorPicker.clicked.connect(lambda: self.setColor(QtWidgets.QColorDialog.getColor(self.color, options=QtWidgets.QColorDialog.ShowAlphaChannel)))
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self.radioButton = QtWidgets.QRadioButton()
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self.layout = QtWidgets.QHBoxLayout()
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self.layout.addWidget(self.frequencyInput)
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self.layout.addWidget(self.btnColorPicker)
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self.layout.addWidget(self.radioButton)
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################################################################################################################
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# Data display layout
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################################################################################################################
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self.group_box = QtWidgets.QGroupBox(self.name)
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box_layout = QtWidgets.QHBoxLayout(self.group_box)
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line = QtWidgets.QFrame()
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line.setFrameShape(QtWidgets.QFrame.VLine)
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#line.setFrameShadow(QtWidgets.QFrame.Sunken)
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left_form = QtWidgets.QFormLayout()
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right_form = QtWidgets.QFormLayout()
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box_layout.addLayout(left_form)
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box_layout.addWidget(line)
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box_layout.addLayout(right_form)
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# Left side
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left_form.addRow(QtWidgets.QLabel("Frequency:"), self.frequency_label)
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left_form.addRow(QtWidgets.QLabel("Impedance:"), self.impedance_label)
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left_form.addRow(QtWidgets.QLabel("L equiv.:"), self.inductance_label)
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left_form.addRow(QtWidgets.QLabel("C equiv.:"), self.capacitance_label)
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left_form.addRow(QtWidgets.QLabel("Q:"), self.quality_factor_label)
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# Right side
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right_form.addRow(QtWidgets.QLabel("Return loss:"), self.returnloss_label)
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right_form.addRow(QtWidgets.QLabel("VSWR:"), self.vswr_label)
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right_form.addRow(QtWidgets.QLabel("S21 Gain:"), self.gain_label)
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right_form.addRow(QtWidgets.QLabel("S21 Phase:"), self.phase_label)
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def setFrequency(self, frequency):
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from .NanoVNASaver import NanoVNASaver
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f = NanoVNASaver.parseFrequency(frequency)
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if f > 0:
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self.frequency = f
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self.updated.emit()
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else:
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self.frequency = 0
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self.updated.emit()
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return
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def setColor(self, color):
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if color.isValid():
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self.color = color
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p = self.btnColorPicker.palette()
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p.setColor(QtGui.QPalette.ButtonText, self.color)
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self.btnColorPicker.setPalette(p)
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def getRow(self):
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return (QtWidgets.QLabel(self.name), self.layout)
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def findLocation(self, data: List[Datapoint]):
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self.location = -1
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if self.frequency == 0:
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# No frequency set for this marker
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return
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if len(data) == 0:
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# Set the frequency before loading any data
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return
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stepsize = data[1].freq-data[0].freq
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for i in range(len(data)):
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if abs(data[i].freq-self.frequency) <= (stepsize/2):
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self.location = i
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return
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def getGroupBox(self):
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return self.group_box
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def resetLabels(self):
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self.frequency_label.setText("")
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self.impedance_label.setText("")
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self.vswr_label.setText("")
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self.returnloss_label.setText("")
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self.inductance_label.setText("")
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self.capacitance_label.setText("")
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self.gain_label.setText("")
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self.phase_label.setText("")
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self.quality_factor_label.setText("")
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def updateLabels(self, s11data: List[Datapoint], s21data: List[Datapoint]):
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from NanoVNASaver.Chart import PhaseChart
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from NanoVNASaver.NanoVNASaver import NanoVNASaver
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if self.location != -1:
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im50, re50, vswr = NanoVNASaver.vswr(s11data[self.location])
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if im50 < 0:
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im50str = " -j" + str(round(-1 * im50, 3))
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else:
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im50str = " +j" + str(round(im50, 3))
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self.frequency_label.setText(NanoVNASaver.formatFrequency(s11data[self.location].freq))
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self.impedance_label.setText(str(round(re50, 3)) + im50str)
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self.returnloss_label.setText(str(round(20 * math.log10((vswr - 1) / (vswr + 1)), 3)) + " dB")
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capacitance = NanoVNASaver.capacitanceEquivalent(im50, s11data[self.location].freq)
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inductance = NanoVNASaver.inductanceEquivalent(im50, s11data[self.location].freq)
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self.inductance_label.setText(inductance)
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self.capacitance_label.setText(capacitance)
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vswr = round(vswr, 3)
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if vswr < 0:
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vswr = "-"
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self.vswr_label.setText(str(vswr))
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self.quality_factor_label.setText(str(round(NanoVNASaver.qualifyFactor(s11data[self.location]), 1)))
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if len(s21data) == len(s11data):
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_, _, vswr = NanoVNASaver.vswr(s21data[self.location])
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self.gain_label.setText(str(round(20 * math.log10((vswr - 1) / (vswr + 1)), 3)) + " dB")
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self.phase_label.setText(
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str(round(PhaseChart.angle(s21data[self.location]), 2)) + "\N{DEGREE SIGN}")
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