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Use a cosine instead of a sine for direct phase reading

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Eric Teunis de Boone 2022-11-02 16:09:45 +01:00
parent ee0f223423
commit e90169464c
1 changed files with 1 additions and 1 deletions
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2
fourier/mylib/util.py
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@ -15,7 +15,7 @@ def phasemod(phase, low=np.pi):
def sine_fitfunc(t, amp=1, freq=1, phase=0, off=0): def sine_fitfunc(t, amp=1, freq=1, phase=0, off=0):
"""Simple sine wave for fitting purposes""" """Simple sine wave for fitting purposes"""
return amp*np.sin( 2*np.pi*freq*t + phase) + off return amp*np.cos( 2*np.pi*freq*t + phase) + off
def sampled_time(sample_rate=1, start=0, end=1, offset=0): def sampled_time(sample_rate=1, start=0, end=1, offset=0):
return offset + np.arange(start, end, 1/sample_rate) return offset + np.arange(start, end, 1/sample_rate)