kopia lustrzana https://github.com/NanoVNA-Saver/nanovna-saver
131 wiersze
5.1 KiB
Python
131 wiersze
5.1 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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from PyQt5 import QtCore
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from NanoVNASaver import RFTools
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from NanoVNASaver.Formatting import (
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format_capacitance,
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format_complex_adm,
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format_complex_imp,
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format_frequency_space,
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format_gain,
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format_group_delay,
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format_inductance,
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format_magnitude,
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format_phase,
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format_q_factor,
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format_resistance,
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format_vswr,
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format_wavelength,
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)
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from .Widget import Marker
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class DeltaMarker(Marker):
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def __init__(self, name: str = "", qsettings: QtCore.QSettings = None):
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super().__init__(name, qsettings)
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self.marker_a = None
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self.marker_b = None
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def set_markers(self, marker_a: Marker, marker_b: Marker):
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self.marker_a = marker_a
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self.marker_b = marker_b
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self.name = f"Delta {marker_b.name} - {marker_a.name}"
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self.group_box.setTitle(self.name)
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def updateLabels(self): # pylint: disable=arguments-differ
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a = self.marker_a
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b = self.marker_b
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s11_a = a.s11[1]
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s11_b = b.s11[1]
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imp_a = s11_a.impedance()
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imp_b = s11_b.impedance()
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imp = imp_b - imp_a
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cap_str = format_capacitance(
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RFTools.impedance_to_capacitance(imp_b, s11_b.freq) -
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RFTools.impedance_to_capacitance(imp_a, s11_a.freq))
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ind_str = format_inductance(
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RFTools.impedance_to_inductance(imp_b, s11_b.freq) -
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RFTools.impedance_to_inductance(imp_a, s11_a.freq))
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imp_p_a = RFTools.serial_to_parallel(imp_a)
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imp_p_b = RFTools.serial_to_parallel(imp_b)
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imp_p = imp_p_b - imp_p_a
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cap_p_str = format_capacitance(
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RFTools.impedance_to_capacitance(imp_p_b, s11_b.freq)-
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RFTools.impedance_to_capacitance(imp_p_a, s11_a.freq))
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ind_p_str = format_inductance(
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RFTools.impedance_to_inductance(imp_p_b, s11_b.freq)-
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RFTools.impedance_to_inductance(imp_p_a, s11_a.freq))
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x_str = cap_str if imp.imag < 0 else ind_str
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x_p_str = cap_p_str if imp_p.imag < 0 else ind_p_str
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self.label['actualfreq'].setText(
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format_frequency_space(s11_b.freq - s11_a.freq))
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self.label['lambda'].setText(
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format_wavelength(s11_b.wavelength - s11_a.wavelength))
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self.label['admittance'].setText(format_complex_adm(imp_p, True))
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self.label['impedance'].setText(format_complex_imp(imp, True))
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self.label['parc'].setText(cap_p_str)
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self.label['parl'].setText(ind_p_str)
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self.label['parlc'].setText(x_p_str)
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self.label['parr'].setText(format_resistance(imp_p.real, True))
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self.label['returnloss'].setText(
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format_gain(s11_b.gain - s11_a.gain, self.returnloss_is_positive))
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self.label['s11groupdelay'].setText(format_group_delay(
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RFTools.groupDelay(b.s11, 1) -
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RFTools.groupDelay(a.s11, 1)))
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self.label['s11mag'].setText(
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format_magnitude(abs(s11_b.z) - abs(s11_a.z)))
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self.label['s11phase'].setText(format_phase(s11_b.phase - s11_a.phase))
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self.label['s11polar'].setText(
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f"{round(abs(s11_b.z) - abs(s11_a.z), 2)}∠"
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f"{format_phase(s11_b.phase - s11_a.phase)}")
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self.label['s11q'].setText(format_q_factor(
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s11_b.qFactor() - s11_a.qFactor(), True))
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self.label['s11z'].setText(format_resistance(abs(imp)))
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self.label['serc'].setText(cap_str)
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self.label['serl'].setText(ind_str)
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self.label['serlc'].setText(x_str)
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self.label['serr'].setText(format_resistance(imp.real, True))
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self.label['vswr'].setText(format_vswr(s11_b.vswr - s11_a.vswr))
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if len(a.s21) == len(a.s11):
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s21_a = a.s21[1]
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s21_b = b.s21[1]
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self.label['s21gain'].setText(format_gain(
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s21_b.gain - s21_a.gain))
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self.label['s21groupdelay'].setText(format_group_delay(
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(RFTools.groupDelay(b.s21, 1) -
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RFTools.groupDelay(a.s21, 1)) / 2))
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self.label['s21mag'].setText(format_magnitude(
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abs(s21_b.z) - abs(s21_a.z)))
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self.label['s21phase'].setText(format_phase(
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s21_b.phase - s21_a.phase))
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self.label['s21polar'].setText(
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f"{round(abs(s21_b.z) - abs(s21_a.z) , 2)}∠"
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f"{format_phase(s21_b.phase - s21_a.phase)}")
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