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Lab_2_1.py
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#!/usr/bin/env python2
# -*- coding: utf-8 -*-
##################################################
# GNU Radio Python Flow Graph
# Title: Lab 2 1
# Generated: Wed Sep 26 13:37:34 2018
##################################################
if __name__ == '__main__':
import ctypes
import sys
if sys.platform.startswith('linux'):
try:
x11 = ctypes.cdll.LoadLibrary('libX11.so')
x11.XInitThreads()
except:
print "Warning: failed to XInitThreads()"
from gnuradio import analog
from gnuradio import blocks
from gnuradio import eng_notation
from gnuradio import gr
from gnuradio import wxgui
from gnuradio.eng_option import eng_option
from gnuradio.fft import window
from gnuradio.filter import firdes
from gnuradio.wxgui import fftsink2
from gnuradio.wxgui import forms
from gnuradio.wxgui import scopesink2
from grc_gnuradio import wxgui as grc_wxgui
from optparse import OptionParser
import wx
class Lab_2_1(grc_wxgui.top_block_gui):
def __init__(self):
grc_wxgui.top_block_gui.__init__(self, title="Lab 2 1")
_icon_path = "/usr/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))
##################################################
# Variables
##################################################
self.signal_amp = signal_amp = 1
self.samp_rate = samp_rate = 32000
self.noise_amp = noise_amp = -130
self.freq = freq = 1
##################################################
# Blocks
##################################################
_signal_amp_sizer = wx.BoxSizer(wx.VERTICAL)
self._signal_amp_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_signal_amp_sizer,
value=self.signal_amp,
callback=self.set_signal_amp,
label='Signal Amp',
converter=forms.float_converter(),
proportion=0,
)
self._signal_amp_slider = forms.slider(
parent=self.GetWin(),
sizer=_signal_amp_sizer,
value=self.signal_amp,
callback=self.set_signal_amp,
minimum=0,
maximum=2,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.Add(_signal_amp_sizer)
_noise_amp_sizer = wx.BoxSizer(wx.VERTICAL)
self._noise_amp_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_noise_amp_sizer,
value=self.noise_amp,
callback=self.set_noise_amp,
label='Noise Amp',
converter=forms.float_converter(),
proportion=0,
)
self._noise_amp_slider = forms.slider(
parent=self.GetWin(),
sizer=_noise_amp_sizer,
value=self.noise_amp,
callback=self.set_noise_amp,
minimum=-150,
maximum=0,
num_steps=150,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.Add(_noise_amp_sizer)
self.nb = self.nb = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.nb.AddPage(grc_wxgui.Panel(self.nb), "Scope")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "FFT")
self.Add(self.nb)
_freq_sizer = wx.BoxSizer(wx.VERTICAL)
self._freq_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_freq_sizer,
value=self.freq,
callback=self.set_freq,
label='Frequency',
converter=forms.float_converter(),
proportion=0,
)
self._freq_slider = forms.slider(
parent=self.GetWin(),
sizer=_freq_sizer,
value=self.freq,
callback=self.set_freq,
minimum=0,
maximum=10,
num_steps=1000,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.Add(_freq_sizer)
self.wxgui_scopesink2_0 = scopesink2.scope_sink_c(
self.nb.GetPage(0).GetWin(),
title='Scope Plot',
sample_rate=samp_rate,
v_scale=0.5,
v_offset=0,
t_scale=0,
ac_couple=False,
xy_mode=True,
num_inputs=1,
trig_mode=wxgui.TRIG_MODE_AUTO,
y_axis_label='Counts',
)
self.nb.GetPage(0).Add(self.wxgui_scopesink2_0.win)
self.wxgui_fftsink2_0 = fftsink2.fft_sink_c(
self.nb.GetPage(1).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title='FFT Plot',
peak_hold=False,
)
self.nb.GetPage(1).Add(self.wxgui_fftsink2_0.win)
self.blocks_throttle_0 = blocks.throttle(gr.sizeof_gr_complex*1, samp_rate,True)
self.blocks_add_xx_0 = blocks.add_vcc(1)
self.analog_sig_source_x_0 = analog.sig_source_c(samp_rate, analog.GR_COS_WAVE, freq, signal_amp, 0)
self.analog_noise_source_x_0 = analog.noise_source_c(analog.GR_GAUSSIAN, 10.0**(1. * noise_amp / 20.0), 0)
##################################################
# Connections
##################################################
self.connect((self.analog_noise_source_x_0, 0), (self.blocks_add_xx_0, 1))
self.connect((self.analog_sig_source_x_0, 0), (self.blocks_add_xx_0, 0))
self.connect((self.blocks_add_xx_0, 0), (self.blocks_throttle_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.wxgui_fftsink2_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.wxgui_scopesink2_0, 0))
def get_signal_amp(self):
return self.signal_amp
def set_signal_amp(self, signal_amp):
self.signal_amp = signal_amp
self._signal_amp_slider.set_value(self.signal_amp)
self._signal_amp_text_box.set_value(self.signal_amp)
self.analog_sig_source_x_0.set_amplitude(self.signal_amp)
def get_samp_rate(self):
return self.samp_rate
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.wxgui_scopesink2_0.set_sample_rate(self.samp_rate)
self.wxgui_fftsink2_0.set_sample_rate(self.samp_rate)
self.blocks_throttle_0.set_sample_rate(self.samp_rate)
self.analog_sig_source_x_0.set_sampling_freq(self.samp_rate)
def get_noise_amp(self):
return self.noise_amp
def set_noise_amp(self, noise_amp):
self.noise_amp = noise_amp
self._noise_amp_slider.set_value(self.noise_amp)
self._noise_amp_text_box.set_value(self.noise_amp)
self.analog_noise_source_x_0.set_amplitude(10.0**(1. * self.noise_amp / 20.0))
def get_freq(self):
return self.freq
def set_freq(self, freq):
self.freq = freq
self._freq_slider.set_value(self.freq)
self._freq_text_box.set_value(self.freq)
self.analog_sig_source_x_0.set_frequency(self.freq)
def main(top_block_cls=Lab_2_1, options=None):
tb = top_block_cls()
tb.Start(True)
tb.Wait()
if __name__ == '__main__':
main()