Option Name Option Value
'SweepMethod' Method for evolution of instantaneous frequency:
- 'linear' (default) — Specifies the instantaneous
frequency sweep fi(t):
fi(t) =f 0 +βt where β= (f 1 −f 0 )/tf
β ensures that the signal maintains the desired
frequency breakpoint f 1 at final time tf.
- 'logarithmic' — Specifies the instantaneous
frequency sweep fi(t) given by
fi(t) =f 0 ×βtwhere β=
f 1
f 0
1
tf
- 'quadratic' — Specifies the instantaneous
frequency sweep fi(t):
fi(t) =f 0 +βt^2 where β= (f 1 −f 0 )/ti^2
Also specify the shape of the quadratic using the
'Shape' option.
frest.Chirp