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   1 #!/usr/bin/env python
   2 #
   3 # Copyright 2004 Free Software Foundation, Inc.
   4 #
   5 # This file is part of GNU Radio
   6 #
   7 # GNU Radio is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 3, or (at your option)
  10 # any later version.
  11 #
  12 # GNU Radio is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with GNU Radio; see the file COPYING.  If not, write to
  19 # the Free Software Foundation, Inc., 51 Franklin Street,
  20 # Boston, MA 02110-1301, USA.
  21 #
  22
  23 from gnuradio import gr, gr_unittest
  24 import math
  25
  26 class test_sig_source (gr_unittest.TestCase):
  27
  28     def setUp (self):
  29         self.tb = gr.top_block()
  30
  31     def tearDown (self):
  32         self.tb = None
  33
  34     def test_pll_refout (self):
  35         expected_result = ((1+7.39965699825e-10j),
  36                            (0.999980390072+0.00626518437639j),
  37                            (0.999828696251+0.0185074284673j),
  38                            (0.999342679977+0.0362518876791j),
  39                            (0.998255133629+0.0590478181839j),
  40                            (0.996255218983+0.0864609107375j),
  41                            (0.993005692959+0.118066303432j),
  42                            (0.988157629967+0.153442293406j),
  43                            (0.981362581253+0.192165210843j),
  44                            (0.972283244133+0.233806177974j),
  45                            (0.960601866245+0.277928203344j),
  46                            (0.946027755737+0.324085712433j),
  47                            (0.928303182125+0.371824204922j),
  48                            (0.907292485237+0.420500129461j),
  49                            (0.882742881775+0.469856351614j),
  50                            (0.854515135288+0.519426465034j),
  51                            (0.822515428066+0.568742752075j),
  52                            (0.786696314812+0.617340147495j),
  53                            (0.747057616711+0.664759278297j),
  54                            (0.703645646572+0.710551083088j),
  55                            (0.656552672386+0.754280209541j),
  56                            (0.605915129185+0.795529305935j),
  57                            (0.551911592484+0.833902597427j),
  58                            (0.494760006666+0.869029641151j),
  59                            (0.43471455574+0.900568306446j),
  60                            (0.37224894762+0.928132891655j),
  61                            (0.30767711997+0.951490819454j),
  62                            (0.241136431694+0.970491230488j),
  63                            (0.172981828451+0.984925031662j),
  64                            (0.103586450219+0.99462044239j),
  65                            (0.0333373323083+0.999444127083j),
  66                            (-0.0373690575361+0.999301552773j),
  67                            (-0.108130030334+0.994136750698j),
  68                            (-0.178540825844+0.983932495117j),
  69                            (-0.248198583722+0.968709170818j),
  70                            (-0.316705673933+0.948523879051j),
  71                            (-0.383672952652+0.923469007015j),
  72                            (-0.448723316193+0.893670737743j),
  73                            (-0.51132196188+0.85938924551j),
  74                            (-0.571328520775+0.820721447468j),
  75                            (-0.628420114517+0.777874112129j),
  76                            (-0.682293117046+0.73107868433j),
  77                            (-0.732665538788+0.680588841438j),
  78                            (-0.779277384281+0.626679122448j),
  79                            (-0.821892917156+0.569642007351j),
  80                            (-0.860301196575+0.509786069393j),
  81                            (-0.894317150116+0.447433561087j),
  82                            (-0.923782229424+0.382918298244j),
  83                            (-0.948564887047+0.316582858562j),
  84                            (-0.968560874462+0.248776733875j),
  85                            (-0.983657121658+0.180051699281j),
  86                            (-0.993847966194+0.110753215849j),
  87                            (-0.999158322811+0.0410195216537j),
  88                            (-0.999585151672-0.0288011860102j),
  89                            (-0.995150566101-0.0983632653952j),
  90                            (-0.985901713371-0.16732545197j),
  91                            (-0.971909940243-0.235353127122j),
  92                            (-0.953270018101-0.302119642496j),
  93                            (-0.9300994277-0.367307811975j),
  94                            (-0.902537107468-0.430612027645j),
  95                            (-0.870742559433-0.49173912406j),
  96                            (-0.834894418716-0.550410091877j),
  97                            (-0.795189499855-0.606360971928j),
  98                            (-0.751972675323-0.659194231033j),
  99                            (-0.705345034599-0.708864152431j),
 100                            (-0.65554022789-0.755160272121j),
 101                            (-0.602804005146-0.79788929224j),
 102                            (-0.547393083572-0.836875617504j),
 103                            (-0.489574223757-0.871961653233j),
 104                            (-0.429622590542-0.903008520603j),
 105                            (-0.367820799351-0.929896712303j),
 106                            (-0.30445766449-0.952525854111j),
 107                            (-0.239826664329-0.970815718174j),
 108                            (-0.174224823713-0.984705924988j),
 109                            (-0.107951194048-0.994156181812j),
 110                            (-0.0415063276887-0.999138236046j),
 111                            (0.0248276274651-0.999691724777j),
 112                            (0.0909758731723-0.995853126049j),
 113                            (0.156649470329-0.987654268742j),
 114                            (0.221562758088-0.975146114826j),
 115                            (0.285434871912-0.958398103714j),
 116                            (0.347990810871-0.937497973442j),
 117                            (0.408962905407-0.912550985813j),
 118                            (0.468091338873-0.883680105209j),
 119                            (0.525126338005-0.851024270058j),
 120                            (0.57982814312-0.814738810062j),
 121                            (0.631968915462-0.77499371767j),
 122                            (0.681333422661-0.731973171234j),
 123                            (0.727582573891-0.68602013588j),
 124                            (0.770699381828-0.637198925018j),
 125                            (0.810512244701-0.585721731186j),
 126                            (0.846863090992-0.531810998917j),
 127                            (0.879608631134-0.475698113441j),
 128                            (0.908620357513-0.417623132467j),
 129                            (0.933785498142-0.357833325863j),
 130                            (0.955007195473-0.296582698822j),
 131                            (0.972205162048-0.234130680561j),
 132                            (0.985315918922-0.170741200447j),
 133                            (0.994293272495-0.106681488454j),
 134                            (0.999108314514-0.0422209985554j))
 135
 136         sampling_freq = 10e3
 137         freq = sampling_freq / 100
 138
 139         alpha = 0.1
 140         beta = alpha * alpha / 4.0
 141         maxf = 1
 142         minf = -1
 143
 144         src = gr.sig_source_c (sampling_freq, gr.GR_COS_WAVE, freq, 1.0)
 145         pll = gr.pll_refout_cc(alpha, beta, maxf, minf)
 146         head = gr.head (gr.sizeof_gr_complex, int (freq))
 147         dst = gr.vector_sink_c ()
 148
 149         self.tb.connect (src, pll, head)
 150         self.tb.connect (head, dst)
 151
 152         self.tb.run ()
 153         dst_data = dst.data ()
 154
 155         self.assertComplexTuplesAlmostEqual (expected_result, dst_data, 5)
 156
 157 if __name__ == '__main__':
 158     gr_unittest.main ()