Simulink Control Design™ - MathWorks

(Tuis.) #1

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
Free download pdf