kopia lustrzana https://github.com/NanoVNA-Saver/nanovna-saver
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# 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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from PyQt5 import QtWidgets
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from typing import List
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import numpy as np
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Datapoint = collections.namedtuple('Datapoint', 'freq re im')
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class CalibrationWindow(QtWidgets.QWidget):
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def __init__(self, app):
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super().__init__()
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from NanoVNASaver import NanoVNASaver
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self.app: NanoVNASaver = app
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self.setMinimumSize(300, 300)
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self.setWindowTitle("Calibration")
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layout = QtWidgets.QVBoxLayout()
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self.setLayout(layout)
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calibration_status_group = QtWidgets.QGroupBox("Active calibration")
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calibration_status_layout = QtWidgets.QFormLayout()
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self.calibration_status_label = QtWidgets.QLabel("Device calibration")
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calibration_status_layout.addRow("Calibration active: ", self.calibration_status_label)
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calibration_status_group.setLayout(calibration_status_layout)
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layout.addWidget(calibration_status_group)
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calibration_control_group = QtWidgets.QGroupBox("Calibrate")
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calibration_control_layout = QtWidgets.QFormLayout(calibration_control_group)
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btn_cal_short = QtWidgets.QPushButton("Short")
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btn_cal_short.clicked.connect(self.saveShort)
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self.cal_short_label = QtWidgets.QLabel("Uncalibrated")
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btn_cal_open = QtWidgets.QPushButton("Open")
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btn_cal_open.clicked.connect(self.saveOpen)
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self.cal_open_label = QtWidgets.QLabel("Uncalibrated")
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btn_cal_load = QtWidgets.QPushButton("Load")
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btn_cal_load.clicked.connect(self.saveLoad)
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self.cal_load_label = QtWidgets.QLabel("Uncalibrated")
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btn_cal_through = QtWidgets.QPushButton("Through")
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btn_cal_through.setDisabled(True)
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self.cal_through_label = QtWidgets.QLabel("Uncalibrated")
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btn_cal_isolation = QtWidgets.QPushButton("Isolation")
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btn_cal_isolation.setDisabled(True)
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self.cal_isolation_label = QtWidgets.QLabel("Uncalibrated")
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calibration_control_layout.addRow(btn_cal_short, self.cal_short_label)
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calibration_control_layout.addRow(btn_cal_open, self.cal_open_label)
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calibration_control_layout.addRow(btn_cal_load, self.cal_load_label)
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calibration_control_layout.addRow(btn_cal_through, self.cal_through_label)
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calibration_control_layout.addRow(btn_cal_isolation, self.cal_isolation_label)
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calibration_control_layout.addRow(QtWidgets.QLabel(""))
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btn_apply = QtWidgets.QPushButton("Apply")
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calibration_control_layout.addRow(btn_apply)
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btn_apply.clicked.connect(self.calculate)
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btn_reset = QtWidgets.QPushButton("Reset")
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calibration_control_layout.addRow(btn_reset)
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btn_reset.clicked.connect(self.reset)
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layout.addWidget(calibration_control_group)
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def saveShort(self):
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self.app.calibration.s11short = self.app.data
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self.cal_short_label.setText("Calibrated")
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def saveOpen(self):
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self.app.calibration.s11open = self.app.data
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self.cal_open_label.setText("Calibrated")
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def saveLoad(self):
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self.app.calibration.s11load = self.app.data
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self.cal_load_label.setText("Calibrated")
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def reset(self):
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self.app.calibration = Calibration()
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self.cal_short_label.setText("Uncalibrated")
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self.cal_open_label.setText("Uncalibrated")
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self.cal_load_label.setText("Uncalibrated")
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self.calibration_status_label.setText("Device calibration")
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def calculate(self):
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if self.app.calibration.calculateCorrections():
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self.calibration_status_label.setText("Application calibration")
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class Calibration:
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s11short: List[Datapoint] = []
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s11open: List[Datapoint] = []
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s11load: List[Datapoint] = []
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s21through: List[Datapoint] = []
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s21isolation: List[Datapoint] = []
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frequencies = []
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e00 = []
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e11 = []
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deltaE = []
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shortIdeal = np.complex(-1, 0)
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openIdeal = np.complex(1, 0)
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loadIdeal = np.complex(0, 0)
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isCalculated = False
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def isValid2Port(self):
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return len(self.s21through) > 0 and len(self.s21isolation) > 0 and self.isValid1Port()
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def isValid1Port(self):
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return len(self.s11short) > 0 and len(self.s11open) > 0 and len(self.s11load) > 0
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def calculateCorrections(self):
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if not self.isValid1Port():
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return False
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self.frequencies = [int] * len(self.s11short)
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self.e00 = [np.complex] * len(self.s11short)
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self.e11 = [np.complex] * len(self.s11short)
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self.deltaE = [np.complex] * len(self.s11short)
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for i in range(len(self.s11short)):
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self.frequencies[i] = self.s11short[i].freq
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g1 = self.shortIdeal
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g2 = self.openIdeal
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g3 = self.loadIdeal
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gm1 = np.complex(self.s11short[i].re, self.s11short[i].im)
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gm2 = np.complex(self.s11open[i].re, self.s11open[i].im)
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gm3 = np.complex(self.s11load[i].re, self.s11load[i].im)
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denominator = g1*(g2-g3)*gm1 + g2*g3*gm2 - g2*g3*gm3 - (g2*gm2-g3*gm3)*g1
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self.e00[i] = - ((g2*gm3 - g3*gm3)*g1*gm2 - (g2*g3*gm2 - g2*g3*gm3 - (g3*gm2 - g2*gm3)*g1)*gm1) / denominator
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self.e11[i] = ((g2-g3)*gm1-g1*(gm2-gm3)+g3*gm2-g2*gm3) / denominator
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self.deltaE[i] = - ((g1*(gm2-gm3)-g2*gm2+g3*gm3)*gm1+(g2*gm3-g3*gm3)*gm2) / denominator
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self.isCalculated = True
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return self.isCalculated
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def correct11(self, re, im, freq):
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s11m = np.complex(re, im)
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distance = 10**10
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index = 0
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for i in range(len(self.s11short)):
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if abs(self.s11short[i].freq - freq) < distance:
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index = i
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distance = abs(self.s11short[i].freq - freq)
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s11 = (s11m - self.e00[index]) / ((s11m * self.e11[index]) - self.deltaE[index])
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return s11.real, s11.imag
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@ -25,6 +25,7 @@ from PyQt5 import QtWidgets, QtCore, QtGui
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from serial.tools import list_ports
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import Chart
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from Calibration import CalibrationWindow, Calibration
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from Marker import Marker
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from SmithChart import SmithChart
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from SweepWorker import SweepWorker
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self.referenceS11data : List[Datapoint] = []
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self.referenceS21data : List[Datapoint] = []
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self.calibration = Calibration()
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self.markers = []
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self.serialPort = self.getport()
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left_column.addWidget(tdr_control_box)
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################################################################################################################
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# Calibration
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################################################################################################################
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calibration_control_box = QtWidgets.QGroupBox("Calibration")
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calibration_control_box.setMaximumWidth(400)
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calibration_control_layout = QtWidgets.QFormLayout(calibration_control_box)
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b = QtWidgets.QPushButton("Calibration ...")
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self.calibrationWindow = CalibrationWindow(self)
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b.clicked.connect(self.calibrationWindow.show)
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calibration_control_layout.addRow(b)
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left_column.addWidget(calibration_control_box)
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################################################################################################################
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# Spacer
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################################################################################################################
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@ -280,25 +295,6 @@ class NanoVNASaver(QtWidgets.QWidget):
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reference_control_layout.addRow(set_reference_layout)
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reference_control_layout.addRow(self.btnResetReference)
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self.referenceFileNameInput = QtWidgets.QLineEdit("")
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btnReferenceFilePicker = QtWidgets.QPushButton("...")
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btnReferenceFilePicker.setMaximumWidth(25)
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btnReferenceFilePicker.clicked.connect(self.pickReferenceFile)
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referenceFileNameLayout = QtWidgets.QHBoxLayout()
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referenceFileNameLayout.addWidget(self.referenceFileNameInput)
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referenceFileNameLayout.addWidget(btnReferenceFilePicker)
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reference_control_layout.addRow(QtWidgets.QLabel("Filename"), referenceFileNameLayout)
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import_button_layout = QtWidgets.QHBoxLayout()
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btnLoadReference = QtWidgets.QPushButton("Load reference")
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btnLoadReference.clicked.connect(self.loadReferenceFile)
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btnLoadSweep = QtWidgets.QPushButton("Load as sweep")
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btnLoadSweep.clicked.connect(self.loadSweepFile)
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import_button_layout.addWidget(btnLoadReference)
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import_button_layout.addWidget(btnLoadSweep)
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reference_control_layout.addRow(import_button_layout)
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left_column.addWidget(reference_control_box)
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################################################################################################################
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# File control
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################################################################################################################
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self.fileWindow = QtWidgets.QWidget()
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self.fileWindow.setWindowTitle("Files")
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file_window_layout = QtWidgets.QVBoxLayout()
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self.fileWindow.setLayout(file_window_layout)
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reference_file_control_box = QtWidgets.QGroupBox("Import file")
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reference_file_control_layout = QtWidgets.QFormLayout(reference_file_control_box)
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self.referenceFileNameInput = QtWidgets.QLineEdit("")
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btnReferenceFilePicker = QtWidgets.QPushButton("...")
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btnReferenceFilePicker.setMaximumWidth(25)
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btnReferenceFilePicker.clicked.connect(self.pickReferenceFile)
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referenceFileNameLayout = QtWidgets.QHBoxLayout()
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referenceFileNameLayout.addWidget(self.referenceFileNameInput)
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referenceFileNameLayout.addWidget(btnReferenceFilePicker)
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reference_file_control_layout.addRow(QtWidgets.QLabel("Filename"), referenceFileNameLayout)
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file_window_layout.addWidget(reference_file_control_box)
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btnLoadReference = QtWidgets.QPushButton("Load reference")
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btnLoadReference.clicked.connect(self.loadReferenceFile)
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btnLoadSweep = QtWidgets.QPushButton("Load as sweep")
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btnLoadSweep.clicked.connect(self.loadSweepFile)
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reference_file_control_layout.addRow(btnLoadReference)
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reference_file_control_layout.addRow(btnLoadSweep)
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file_control_box = QtWidgets.QGroupBox()
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file_control_box.setTitle("Export file")
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file_control_box.setMaximumWidth(400)
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self.btnExportFile.clicked.connect(self.exportFileS2P)
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file_control_layout.addRow(self.btnExportFile)
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file_window_layout.addWidget(file_control_box)
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file_control_box = QtWidgets.QGroupBox()
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file_control_box.setTitle("Files")
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file_control_box.setMaximumWidth(400)
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file_control_layout = QtWidgets.QFormLayout(file_control_box)
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btnOpenFileWindow = QtWidgets.QPushButton("Files ...")
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file_control_layout.addWidget(btnOpenFileWindow)
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btnOpenFileWindow.clicked.connect(lambda: self.fileWindow.show())
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left_column.addWidget(file_control_box)
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################################################################################################################
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@ -356,7 +387,7 @@ class NanoVNASaver(QtWidgets.QWidget):
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################################################################################################################
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self.lister = QtWidgets.QPlainTextEdit()
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self.lister.setFixedHeight(100)
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self.lister.setFixedHeight(80)
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charts = QtWidgets.QGridLayout()
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charts.addWidget(self.s11SmithChart, 0, 0)
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charts.addWidget(self.s21SmithChart, 1, 0)
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@ -383,11 +414,13 @@ class NanoVNASaver(QtWidgets.QWidget):
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def pickReferenceFile(self):
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filename, _ = QtWidgets.QFileDialog.getOpenFileName(directory=self.referenceFileNameInput.text(), filter="Touchstone Files (*.s1p *.s2p);;All files (*.*)")
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self.referenceFileNameInput.setText(filename)
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if filename != "":
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self.referenceFileNameInput.setText(filename)
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def pickFile(self):
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filename, _ = QtWidgets.QFileDialog.getSaveFileName(directory=self.fileNameInput.text(), filter="Touchstone Files (*.s1p *.s2p);;All files (*.*)")
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self.fileNameInput.setText(filename)
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if filename != "":
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self.fileNameInput.setText(filename)
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def exportFileS1P(self):
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print("Save file to " + self.fileNameInput.text())
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@ -15,6 +15,7 @@
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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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from time import sleep
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from typing import List
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from PyQt5 import QtCore
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from PyQt5.QtCore import pyqtSlot, pyqtSignal
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@ -37,6 +38,8 @@ class SweepWorker(QtCore.QRunnable):
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self.noSweeps = 1
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self.setAutoDelete(False)
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self.percentage = 0
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self.data11: List[Datapoint] = []
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self.data12: List[Datapoint] = []
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@pyqtSlot()
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def run(self):
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@ -106,8 +109,12 @@ class SweepWorker(QtCore.QRunnable):
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re12 = float(reStr)
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im12 = float(imStr)
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freq = int(frequencies[i])
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if self.app.calibration.isCalculated: # We only have 1-port calibration for now
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re, im = self.app.calibration.correct11(re, im, freq)
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data += [Datapoint(freq, re, im)]
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data12 += [Datapoint(freq, re12, im12)]
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self.data11 = data
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self.data12 = data12
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self.app.saveData(data, data12)
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self.signals.updated.emit()
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