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authorMatthias P. Braendli <matthias.braendli@mpb.li>2018-12-04 10:18:33 +0100
committerMatthias P. Braendli <matthias.braendli@mpb.li>2018-12-04 10:18:33 +0100
commitd5cbe10c0e2298b0e40161607a3da158249bdb82 (patch)
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Move python stuff to folder
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-# -*- coding: utf-8 -*-
-#
-# DPD Computation Engine, constants and global configuration
-#
-# Source for DAB standard: etsi_EN_300_401_v010401p p145
-#
-# http://www.opendigitalradio.org
-# Licence: The MIT License, see notice at the end of this file
-
-import numpy as np
-
-class GlobalConfig:
- def __init__(self, cli_args, plot_location):
- self.sample_rate = cli_args.samplerate
- assert self.sample_rate == 8192000 # By now only constants for 8192000
-
- self.plot_location = plot_location
-
- # DAB frame
- # Time domain
- oversample = int(self.sample_rate / 2048000)
- self.T_F = oversample * 196608 # Transmission frame duration
- self.T_NULL = oversample * 2656 # Null symbol duration
- self.T_S = oversample * 2552 # Duration of OFDM symbols of indices l = 1, 2, 3,... L;
- self.T_U = oversample * 2048 # Inverse of carrier spacing
- self.T_C = oversample * 504 # Duration of cyclic prefix
-
- # Frequency Domain
- # example: np.delete(fft[3328:4865], 768)
- self.FFT_delta = 1536 # Number of carrier frequencies
- self.FFT_delete = 768
- self.FFT_start = 3328
- self.FFT_end = 4865
-
- # Calculate sample offset from phase rotation
- # time per sample = 1 / sample_rate
- # frequency per bin = 1kHz
- # phase difference per sample offset = delta_t * 2 * pi * delta_freq
- self.phase_offset_per_sample = 1. / self.sample_rate * 2 * np.pi * 1000
-
- # Constants for ExtractStatistic
- self.ES_plot = cli_args.plot
- self.ES_start = 0.0
- self.ES_end = 1.0
- self.ES_n_bins = 64 # Number of bins between ES_start and ES_end
- self.ES_n_per_bin = 128 # Number of measurements pre bin
-
- # Constants for Measure_Shoulder
- self.MS_enable = False
- self.MS_plot = cli_args.plot
-
- meas_offset = 976 # Offset from center frequency to measure shoulder [kHz]
- meas_width = 100 # Size of frequency delta to measure shoulder [kHz]
- shoulder_offset_edge = np.abs(meas_offset - self.FFT_delta)
- self.MS_shoulder_left_start = self.FFT_start - shoulder_offset_edge - meas_width / 2
- self.MS_shoulder_left_end = self.FFT_start - shoulder_offset_edge + meas_width / 2
- self.MS_shoulder_right_start = self.FFT_end + shoulder_offset_edge - meas_width / 2
- self.MS_shoulder_right_end = self.FFT_end + shoulder_offset_edge + meas_width / 2
- self.MS_peak_start = self.FFT_start + 100 # Ignore region near edges
- self.MS_peak_end = self.FFT_end - 100
-
- self.MS_FFT_size = 8192
- self.MS_averaging_size = 4 * self.MS_FFT_size
- self.MS_n_averaging = 40
- self.MS_n_proc = 4
-
- # Constants for MER
- self.MER_plot = cli_args.plot
-
- # Constants for Model
- self.MDL_plot = cli_args.plot
-
- # Constants for Model_PM
- # Set all phase offsets to zero for TX amplitude < MPM_tx_min
- self.MPM_tx_min = 0.1
-
- # Constants for TX_Agc
- self.TAGC_max_txgain = 89 # USRP B200 specific
- self.TAGC_tx_median_target = cli_args.target_median
- self.TAGC_tx_median_max = self.TAGC_tx_median_target * 1.4
- self.TAGC_tx_median_min = self.TAGC_tx_median_target / 1.4
-
- # Constants for RX_AGC
- self.RAGC_min_rxgain = 25 # USRP B200 specific
- self.RAGC_rx_median_target = cli_args.target_median
-
-# The MIT License (MIT)
-#
-# Copyright (c) 2017 Andreas Steger
-# Copyright (c) 2017 Matthias P. Braendli
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-# SOFTWARE.