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fine-tune agc

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This commit is contained in:
Jakob Ketterl 2021-07-20 17:58:32 +02:00
parent b242f09d5d
commit aeca8265c3
2 changed files with 10 additions and 4 deletions
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7
csdr/chain/am.py
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@ -1,17 +1,20 @@
from csdr.chain import Chain from csdr.chain import Chain
from csdr.chain.demodulator import Demodulator from csdr.chain.demodulator import Demodulator
from pycsdr.modules import AmDemod, DcBlock, Agc, Convert from pycsdr.modules import AmDemod, DcBlock, Agc, Convert
from pycsdr.types import Format from pycsdr.types import Format, AgcProfile
class Am(Demodulator): class Am(Demodulator):
def __init__(self): def __init__(self):
agc = Agc(Format.FLOAT)
agc.setProfile(AgcProfile.SLOW)
agc.setInitialGain(200)
workers = [ workers = [
AmDemod(), AmDemod(),
DcBlock(), DcBlock(),
# empty chain as placeholder for the "last decimation" # empty chain as placeholder for the "last decimation"
Chain(), Chain(),
Agc(Format.FLOAT), agc,
Convert(Format.FLOAT, Format.SHORT), Convert(Format.FLOAT, Format.SHORT),
] ]

7
csdr/chain/fm.py
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@ -1,17 +1,20 @@
from csdr.chain.demodulator import Demodulator, Chain from csdr.chain.demodulator import Demodulator, Chain
from pycsdr.modules import FmDemod, Limit, NfmDeemphasis, Agc, Convert from pycsdr.modules import FmDemod, Limit, NfmDeemphasis, Agc, Convert
from pycsdr.types import Format from pycsdr.types import Format, AgcProfile
class Fm(Demodulator): class Fm(Demodulator):
def __init__(self, sampleRate: int): def __init__(self, sampleRate: int):
agc = Agc(Format.FLOAT)
agc.setProfile(AgcProfile.SLOW)
agc.setMaxGain(3)
workers = [ workers = [
FmDemod(), FmDemod(),
Limit(), Limit(),
# empty chain as placeholder for the "last decimation" # empty chain as placeholder for the "last decimation"
Chain(), Chain(),
NfmDeemphasis(sampleRate), NfmDeemphasis(sampleRate),
Agc(Format.FLOAT), agc,
Convert(Format.FLOAT, Format.SHORT), Convert(Format.FLOAT, Format.SHORT),
] ]
super().__init__(*workers) super().__init__(*workers)