Transform Const into a global config structure, avoid depending on logging for plot location

1 files changed, 107 insertions, 0 deletions

diff --git a/dpd/src/GlobalConfig.py b/dpd/src/GlobalConfig.py
new file mode 100644
index 0000000..684a881
--- /dev/null
+++ b/dpd/src/GlobalConfig.py
@@ -0,0 +1,107 @@
+# -*- 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.sample_rate
+        assert self.sample_rate == 8192000  # By now only constants for 8192000
+
+        self.plot_location = plot_location
+
+        # DAB frame
+        # Time domain
+        self.T_F = self.sample_rate / 2048000 * 196608  # Transmission frame duration
+        self.T_NULL = self.sample_rate / 2048000 * 2656  # Null symbol duration
+        self.T_S = self.sample_rate / 2048000 * 2552  # Duration of OFDM symbols of indices l = 1, 2, 3,... L;
+        self.T_U = self.sample_rate / 2048000 * 2048  # Inverse of carrier spacing
+        self.T_C = self.sample_rate / 2048000 * 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.