nqrduck/nqrduck-spectrometer-limenqr
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Fixed problem with pulse clipping.

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This commit is contained in:
jupfi 2023-08-02 21:34:07 +02:00
parent a8c728a123
commit 51af43d74c
1 changed files with 8 additions and 2 deletions
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10
src/nqrduck_spectrometer_limenqr/controller.py
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@ -203,8 +203,14 @@ class LimeNQRController(BaseSpectrometerController):
# Apply the shift by multiplying the time domain signal # Apply the shift by multiplying the time domain signal
pulse_amplitude = (pulse_amplitude * shift_signal) pulse_amplitude = (pulse_amplitude * shift_signal)
# Normalize the pulse amplitude # Apply the relative amplitude
pulse_amplitude /= np.max(pulse_amplitude) pulse_amplitude *= parameter.get_option_by_name(TXPulse.RELATIVE_AMPLITUDE).value
# Clip the pulse amplitude to a minimum and maximum value of -0.99 and 0.99
# this is kind of ugly but it prevents some kind of issue with the pulse clipping
# I'm not sure why this happens but it seems to be related to the pulse shape
# rectangular pulses seem to be the most effected by this
pulse_amplitude = np.clip(pulse_amplitude, -0.99, 0.99)
if len(lime.pfr) == 0: if len(lime.pfr) == 0:
# Add the TX pulse to the pulse frequency list (lime.pfr) # Add the TX pulse to the pulse frequency list (lime.pfr)