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kaklik |
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#!/usr/bin/env python
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##################################################
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# Gnuradio Python Flow Graph
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# Title: Sonar
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# Author: Kaklik
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# Description: Sonar waform generator
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kaklik |
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# Generated: Sat Feb 21 11:50:42 2009
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kaklik |
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##################################################
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from gnuradio import audio
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from gnuradio import gr
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from gnuradio.wxgui import scopesink2
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kaklik |
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from gnuradio.wxgui import waterfallsink2
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kaklik |
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from grc_gnuradio import wxgui as grc_wxgui
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import wx
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class Sonar(grc_wxgui.top_block_gui):
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def __init__(self):
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grc_wxgui.top_block_gui.__init__(
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self,
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title="GRC - Executing: Sonar",
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icon="/usr/local/share/icons/hicolor/32x32/apps/gnuradio-grc.png",
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)
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##################################################
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# Variables
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##################################################
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self.samp_rate = samp_rate = 96000
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self.frequency = frequency = 20000
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self.ampl = ampl = .4
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##################################################
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# Controls
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##################################################
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_frequency_control = grc_wxgui.slider_horizontal_control(
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window=self.GetWin(),
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callback=self.set_frequency,
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label='frequency',
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value=frequency,
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min=5000,
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max=30000,
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num_steps=1000,
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slider_length=500,
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)
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self.Add(_frequency_control)
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_ampl_control = grc_wxgui.slider_horizontal_control(
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window=self.GetWin(),
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callback=self.set_ampl,
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label="Volume",
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value=ampl,
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min=0,
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max=.5,
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num_steps=100,
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slider_length=200,
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)
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self.GridAdd(_ampl_control, 0, 0, 1, 2)
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##################################################
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# Blocks
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##################################################
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self.audio_sink = audio.sink(48000, "hw:1,0", True)
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self.audio_source_0 = audio.source(48000, "hw:1,0", True)
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self.gr_sig_source_x = gr.sig_source_f(samp_rate, gr.GR_SIN_WAVE, frequency, ampl, 0)
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self.wxgui_scopesink2_0 = scopesink2.scope_sink_f(
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self.GetWin(),
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title="Scope Plot",
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sample_rate=samp_rate*2,
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frame_decim=15,
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v_scale=None,
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t_scale=.0001,
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num_inputs=2,
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)
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self.wxgui_scopesink2_0.win.set_format_line()
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self.Add(self.wxgui_scopesink2_0.win)
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kaklik |
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self.wxgui_waterfallsink2_0 = waterfallsink2.waterfall_sink_f(
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self.GetWin(),
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baseband_freq=0,
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y_per_div=10,
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ref_level=50,
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sample_rate=samp_rate,
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fft_size=512,
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fft_rate=15,
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average=True,
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avg_alpha=None,
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title="Waterfall Plot",
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)
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self.Add(self.wxgui_waterfallsink2_0.win)
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kaklik |
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##################################################
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# Connections
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##################################################
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self.connect((self.gr_sig_source_x, 0), (self.audio_sink, 0))
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self.connect((self.gr_sig_source_x, 0), (self.wxgui_scopesink2_0, 0))
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self.connect((self.audio_source_0, 0), (self.wxgui_scopesink2_0, 1))
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kaklik |
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self.connect((self.audio_source_0, 0), (self.wxgui_waterfallsink2_0, 0))
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kaklik |
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def set_samp_rate(self, samp_rate):
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self.samp_rate = samp_rate
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self.gr_sig_source_x.set_sampling_freq(self.samp_rate)
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self.wxgui_scopesink2_0.set_sample_rate(self.samp_rate*2)
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kaklik |
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self.wxgui_waterfallsink2_0.set_sample_rate(self.samp_rate)
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kaklik |
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def set_frequency(self, frequency):
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self.frequency = frequency
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self.gr_sig_source_x.set_frequency(self.frequency)
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def set_ampl(self, ampl):
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self.ampl = ampl
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self.gr_sig_source_x.set_amplitude(self.ampl)
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if __name__ == '__main__':
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if gr.enable_realtime_scheduling() != gr.RT_OK:
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print "Error: failed to enable realtime scheduling."
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tb = Sonar()
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tb.Run()
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