cls2dls
cls2dls — bilinear transform
Calling sequence
[sl1]=cls2dls(sl,T [,fp])
Parameters
| sl,sl1 | : linear systems (syslin lists) |
| T | : real number, the sampling period |
| fp | : prevarping frequency in hertz |
Description
given sl=[A,B,C,D] (syslin list),a continuous time system
cls2dls returns the sampled system obtained by the
bilinear transform s=(2/T)*(z-1)/(z+1).
Examples
s=poly(0,'s');z=poly(0,'z');
sl=syslin('c',(s+1)/(s^2-5*s+2)); //Continuous-time system in transfer form
slss=tf2ss(sl); //Now in state-space form
sl1=cls2dls(slss,0.2); //sl1= output of cls2dls
sl1t=ss2tf(sl1) // Converts in transfer form
sl2=horner(sl,(2/0.2)*(z-1)/(z+1)) //Compare sl2 and sl1
See also
horner
