Source code for NanoVNASaver.Analysis.LowPassAnalysis
# 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 .. import AnalyticTools as At
from .Base import CUTOFF_VALS
from .HighPassAnalysis import HighPassAnalysis
logger = logging.getLogger(__name__)
[docs]
class LowPassAnalysis(HighPassAnalysis):
def __init__(self, app):
super().__init__(app)
self.set_titel("Lowpass filter analysis")
[docs]
def find_cutoffs(
self, gains: list[float], peak: int, peak_db: float
) -> dict[str, int]:
return {
f"{attn:.1f}dB": At.cut_off_right(gains, peak, peak_db, attn)
for attn in CUTOFF_VALS
}