def db10(w):
"""Return x in dB where x is assumed to be a non-power quantity
>>> w1=Waveform(array([1,2,3]),array([complex(-1,0),complex(0,1),2]))
>>> db10(w1)
Waveform(array([1, 2, 3]), array([ 0. , 0. , 3.01029996]))
"""
return applyfunc(lambda x: 10.0*log10(abs(x)), w, 'db10')
def db10(w):
"""Return x in dB where x is assumed to be a non-power quantity
>>> w1=Waveform(array([1,2,3]),array([complex(-1,0),complex(0,1),2]))
>>> db10(w1)
Waveform(array([1, 2, 3]), array([ 0. , 0. , 3.01029996]))
"""
return applyfunc(lambda x: 10.0*log10(abs(x)), w, 'db10')
def db20(w):
"""Return x in dB where x is assumed to be a non-power quantity
>>> w1=Waveform(array([1,2,3]),array([complex(-1,0),complex(0,1), \
complex(1,-1)]), ylabel='x')
>>> db20(w1)
Waveform(array([1, 2, 3]), array([ 0. , 0. , 3.01029996]))
>>> db20(w1).ylabel
'db20(x)'
"""
return applyfunc(lambda x: 20.0*log10(abs(x)), w, 'db20')
def db20(w):
"""Return x in dB where x is assumed to be a non-power quantity
>>> w1=Waveform(array([1,2,3]),array([complex(-1,0),complex(0,1), \
complex(1,-1)]), ylabel='x')
>>> db20(w1)
Waveform(array([1, 2, 3]), array([ 0. , 0. , 3.01029996]))
>>> db20(w1).ylabel
'db20(x)'
"""
return applyfunc(lambda x: 20.0*log10(abs(x)), w, 'db20')
def phase(w):
"""Return argument in degrees of complex values
Example:
>>> phase(1)
0.0
>>> phase(complex(0,1))
90.0
>>> phase(Waveform((range(3),), array([1, complex(1,1), complex(0,-1)])))
Waveform(array([0, 1, 2]), array([ 0., 45., -90.]))
"""
def phase(x):
return np.angle(w, deg=True)
return applyfunc(phase , w)
def phase(w):
"""Return argument in degrees of complex values
Example:
>>> phase(1)
0.0
>>> phase(complex(0,1))
90.0
>>> phase(Waveform((range(3),), array([1, complex(1,1), complex(0,-1)])))
Waveform(array([0, 1, 2]), array([ 0., 45., -90.]))
"""
def phase(x):
return np.angle(w, deg=True)
return applyfunc(phase , w)
