def test_explain(self):
f = MultistageChannelFilter(input_rate=10000, output_rate=1000, cutoff_freq=500, transition_width=100)
self.assertEqual(f.explain(), textwrap.dedent('''\
2 stages from 10000 to 1000
decimate by 5 using 43 taps (86000) in freq_xlating_fir_filter_ccc_sptr
decimate by 2 using 49 taps (49000) in fft_filter_ccc_sptr
No final resampler stage.'''))
def test_one_filter(**kwargs):
print '------ %s -------' % (kwargs, )
f = MultistageChannelFilter(**kwargs)
size = 10000000
top = gr.top_block()
top.connect(blocks.vector_source_c([5] * size), f,
blocks.null_sink(gr.sizeof_gr_complex))
print f.explain()
t0 = time.clock()
top.start()
top.wait()
top.stop()
t1 = time.clock()
print size, 'samples processed in', t1 - t0, 'CPU-seconds'
def test_one_filter(**kwargs): print '------ %s -------' % (kwargs,) f = MultistageChannelFilter(**kwargs) size = 10000000 top = gr.top_block() top.connect( blocks.vector_source_c([5] * size), f, blocks.null_sink(gr.sizeof_gr_complex)) print f.explain() t0 = time.clock() top.start() top.wait() top.stop() t1 = time.clock() print size, 'samples processed in', t1 - t0, 'CPU-seconds'
def test_explain(self):
f = MultistageChannelFilter(input_rate=10000,
output_rate=1000,
cutoff_freq=500,
transition_width=100)
self.assertEqual(
f.explain(),
textwrap.dedent('''\
2 stages from 10000 to 1000
decimate by 5 using 43 taps (86000) in freq_xlating_fir_filter_ccc_sptr
decimate by 2 using 49 taps (49000) in fft_filter_ccc_sptr
No final resampler stage.'''))
