nanovna-saver/src/NanoVNASaver/Analysis/SimplePeakSearchAnalysis.py

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4.4 KiB
Python

# NanoVNASaver
#
# A python program to view and export Touchstone data from a NanoVNA
# Copyright (C) 2019, 2020 Rune B. Broberg
# Copyright (C) 2020,2021 NanoVNA-Saver Authors
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
import logging
from typing import Callable
from PyQt6 import QtWidgets
import numpy as np
from NanoVNASaver.Analysis.Base import Analysis, QHLine
from NanoVNASaver.Formatting import (
format_frequency,
format_gain,
format_resistance,
format_vswr,
)
logger = logging.getLogger(__name__)
class SimplePeakSearchAnalysis(Analysis):
def __init__(self, app):
super().__init__(app)
self.label["peak_freq"] = QtWidgets.QLabel()
self.label["peak_db"] = QtWidgets.QLabel()
self.button = {
"vswr": QtWidgets.QRadioButton("VSWR"),
"resistance": QtWidgets.QRadioButton("Resistance"),
"reactance": QtWidgets.QRadioButton("Reactance"),
"gain": QtWidgets.QRadioButton("S21 Gain"),
"peak_h": QtWidgets.QRadioButton("Highest value"),
"peak_l": QtWidgets.QRadioButton("Lowest value"),
"move_marker": QtWidgets.QCheckBox(),
}
self.button["gain"].setChecked(True)
self.button["peak_h"].setChecked(True)
self.btn_group = {
"data": QtWidgets.QButtonGroup(),
"peak": QtWidgets.QButtonGroup(),
}
for btn in ("vswr", "resistance", "reactance", "gain"):
self.btn_group["data"].addButton(self.button[btn])
self.btn_group["peak"].addButton(self.button["peak_h"])
self.btn_group["peak"].addButton(self.button["peak_l"])
layout = self.layout
layout.addRow(self.label["titel"])
layout.addRow(QHLine())
layout.addRow(QtWidgets.QLabel("<b>Settings</b>"))
layout.addRow("Data source", self.button["vswr"])
layout.addRow("", self.button["resistance"])
layout.addRow("", self.button["reactance"])
layout.addRow("", self.button["gain"])
layout.addRow(QHLine())
layout.addRow("Peak type", self.button["peak_h"])
layout.addRow("", self.button["peak_l"])
layout.addRow(QHLine())
layout.addRow("Move marker to peak", self.button["move_marker"])
layout.addRow(QHLine())
layout.addRow(self.label["result"])
layout.addRow("Peak frequency:", self.label["peak_freq"])
layout.addRow("Peak value:", self.label["peak_db"])
self.set_titel("Simple peak search")
def runAnalysis(self):
if not self.app.data.s11:
return
s11 = self.app.data.s11
data, fmt_fnc = self.data_and_format()
if self.button["peak_l"].isChecked():
idx_peak = np.argmin(data)
else:
self.button["peak_h"].setChecked(True)
idx_peak = np.argmax(data)
self.label["peak_freq"].setText(format_frequency(s11[idx_peak].freq))
self.label["peak_db"].setText(fmt_fnc(data[idx_peak]))
if self.button["move_marker"].isChecked() and self.app.markers:
self.app.markers[0].setFrequency(f"{s11[idx_peak].freq}")
def data_and_format(self) -> tuple[list[float], Callable]:
s11 = self.app.data.s11
s21 = self.app.data.s21
if not s21:
self.button["gain"].setEnabled(False)
if self.button["gain"].isChecked():
self.button["vswr"].setChecked(True)
else:
self.button["gain"].setEnabled(True)
if self.button["gain"].isChecked():
return ([d.gain for d in s21], format_gain)
if self.button["resistance"].isChecked():
return ([d.impedance().real for d in s11], format_resistance)
if self.button["reactance"].isChecked():
return ([d.impedance().imag for d in s11], format_resistance)
# default
return ([d.vswr for d in s11], format_vswr)