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fix FreqLoop itertools usage

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Roman Zeyde
2014-07-05 11:23:33 +03:00
parent 933e0f7cfc
commit c001650bbf
1 changed files with 12 additions and 5 deletions
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17
loop.py
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@@ -21,13 +21,20 @@ class Filter(object):
return y
class FreqLoop(object):
def __init__(self, x, freqs):
self.sampler = sampling.Sampler(x, sampling.Interpolator())
def __init__(self, x, freqs, prefix=None):
interp = sampling.Interpolator()
if prefix is None:
prefix = []
else:
prefix = [prefix] * interp.width
src = itertools.chain(prefix, x)
self.sampler = sampling.Sampler(src, interp)
self.gens = []
gens = itertools.tee(self.sampler, len(freqs))
for freq, gen in zip(freqs, gens):
self.gens.append( recv.extract_symbols(self.sampler, freq) )
samplers = itertools.tee(self.sampler, len(freqs))
for freq, generator in zip(freqs, samplers):
self.gens.append( recv.extract_symbols(generator, freq) )
Kp, Ki = 0.2, 0.01
b = np.array([1, -1])*Kp + np.array([0.5, 0.5])*Ki