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implement WFM with the new chain elements

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This commit is contained in:
Jakob Ketterl
2021-07-25 22:44:53 +02:00
parent 459a99cbf8
commit 75aac5969a
2 changed files with 22 additions and 6 deletions
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15
csdr/chain/fm.py
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@ -1,9 +1,9 @@
from csdr.chain import Chain
from pycsdr.modules import FmDemod, Limit, NfmDeemphasis, Agc, Convert
from pycsdr.modules import FmDemod, Limit, NfmDeemphasis, Agc, WfmDeemphasis, FractionalDecimator
from pycsdr.types import Format, AgcProfile
class Fm(Chain):
class NFm(Chain):
def __init__(self, sampleRate: int):
agc = Agc(Format.FLOAT)
agc.setProfile(AgcProfile.SLOW)
@ -15,3 +15,14 @@ class Fm(Chain):
agc,
]
super().__init__(*workers)
class WFm(Chain):
def __init__(self, sampleRate: int, tau: float):
workers = [
FmDemod(),
Limit(),
FractionalDecimator(Format.FLOAT, 200000.0 / sampleRate, prefilter=True),
WfmDeemphasis(sampleRate, tau),
]
super().__init__(*workers)