diff options
| -rw-r--r-- | gnuradio-core/src/python/gnuradio/gr/Makefile.am | 1 | ||||
| -rwxr-xr-x | gnuradio-core/src/python/gnuradio/gr/qa_pll_freqdet.py | 161 |
2 files changed, 162 insertions, 0 deletions
diff --git a/gnuradio-core/src/python/gnuradio/gr/Makefile.am b/gnuradio-core/src/python/gnuradio/gr/Makefile.am index d85de5b87..5661cac5c 100644 --- a/gnuradio-core/src/python/gnuradio/gr/Makefile.am +++ b/gnuradio-core/src/python/gnuradio/gr/Makefile.am @@ -77,6 +77,7 @@ noinst_PYTHON = \ qa_packed_to_unpacked.py \ qa_pipe_fittings.py \ qa_pll_carriertracking.py \ + qa_pll_freqdet.py \ qa_pll_refout.py \ qa_rational_resampler.py \ qa_sig_source.py \ diff --git a/gnuradio-core/src/python/gnuradio/gr/qa_pll_freqdet.py b/gnuradio-core/src/python/gnuradio/gr/qa_pll_freqdet.py new file mode 100755 index 000000000..137bc8538 --- /dev/null +++ b/gnuradio-core/src/python/gnuradio/gr/qa_pll_freqdet.py @@ -0,0 +1,161 @@ +#!/usr/bin/env python +# +# Copyright 2004 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, gr_unittest +import math + +class test_sig_source (gr_unittest.TestCase): + + def setUp (self): + self.fg = gr.flow_graph() + + def tearDown (self): + self.fg = None + + def test_pll_refout (self): + expected_result = (1.1489677586e-07, + 0.972821060568, + 2.74556447638, + 5.14063078448, + 8.00965819311, + 11.2291393027, + 14.6967068752, + 18.3279143967, + 22.0534772463, + 25.8170093072, + 29.5729107661, + 33.284774699, + 36.923857393, + 40.4367950308, + 43.8452195091, + 47.1363835133, + 50.3011949468, + 53.3336447847, + 56.2301489564, + 58.9891659262, + 61.6107668417, + 64.0962975824, + 66.4481356707, + 68.6694531128, + 70.7640326003, + 72.7048735417, + 74.5033180826, + 76.2012544926, + 77.8019199967, + 79.3088126954, + 80.7255907715, + 82.0560369166, + 83.3039516093, + 84.47312347, + 85.5673411194, + 86.5902864563, + 87.5456117346, + 88.4368565575, + 89.2363918613, + 89.9860999864, + 90.688880206, + 91.3474598523, + 91.9644654653, + 92.5423042123, + 93.0832706099, + 93.5894872344, + 94.0629225081, + 94.5054203452, + 94.9186882929, + 95.3043331057, + 95.6326268597, + 95.9117515522, + 96.1801447842, + 96.437391527, + 96.6831953314, + 96.9173605408, + 97.1397982206, + 97.3504727968, + 97.5493842694, + 97.7366275022, + 97.9123092169, + 98.0766013539, + 98.2297054988, + 98.3408087235, + 98.448722155, + 98.5534457933, + 98.6549322065, + 98.7531932527, + 98.8481459259, + 98.9397487233, + 99.0279067813, + 99.1125074491, + 99.193438076, + 99.2705800823, + 99.3438030304, + 99.3817663128, + 99.3911400359, + 99.4089388448, + 99.4334136894, + 99.4630408207, + 99.4964684305, + 99.5325166512, + 99.5701538394, + 99.6084432158, + 99.6466021546, + 99.6839073198, + 99.7197895289, + 99.7537270313, + 99.7542606398, + 99.7595848672, + 99.7691186729, + 99.7822928746, + 99.7986331535, + 99.8175940432, + 99.838713083, + 99.8614922382, + 99.8854571901, + 99.9101454781, + 99.9351302152, + 99.9599845147) + + sampling_freq = 10e3 + freq = sampling_freq / 100 + + alpha = 0.2 + beta = alpha * alpha / 4.0 + maxf = 1 + minf = -1 + + src = gr.sig_source_c (sampling_freq, gr.GR_COS_WAVE, freq, 1.0) + pll = gr.pll_freqdet_cf(alpha, beta, maxf, minf) + head = gr.head (gr.sizeof_float, int (freq)) + dst = gr.vector_sink_f () + + self.fg.connect (src, pll, head) + self.fg.connect (head, dst) + + self.fg.run () + dst_data = dst.data () + + # convert it from normalized frequency to absolute frequency (Hz) + dst_data = [i*(sampling_freq/(2*math.pi)) for i in dst_data] + + self.assertFloatTuplesAlmostEqual (expected_result, dst_data, 5) + +if __name__ == '__main__': + gr_unittest.main () |