Documentation

This is machine translation

Translated by Microsoft
Mouseover text to see original. Click the button below to return to the English verison of the page.

Note: This page has been translated by MathWorks. Please click here
To view all translated materals including this page, select Japan from the country navigator on the bottom of this page.

delayss

Create state-space models with delayed inputs, outputs, and states

Syntax

sys=delayss(A,B,C,D,delayterms)
sys=delayss(A,B,C,D,ts,delayterms)

Description

sys=delayss(A,B,C,D,delayterms)constructs a continuous-time state-space model of the form:

where tj, j=1,..,N are time delays expressed in seconds. delayterms is a struct array with fields delay, a, b, c, d where the fields of delayterms(j) contain the values of tj, Aj, Bj, Cj, and Dj, respectively. The resulting model sys is a state-space (SS) model with internal delays.

sys=delayss(A,B,C,D,ts,delayterms)constructs the discrete-time counterpart:

where Nj, j=1,..,N are time delays expressed as integer multiples of the sample time ts.

Examples

To create the model:

type

DelayT(1) = struct('delay',0.5,'a',0,'b',2,'c',1,'d',0);
DelayT(2) = struct('delay',1.2,'a',-1,'b',0,'c',0,'d',0);
sys = delayss(1,0,0,1,DelayT) 

a = 
       x1
   x1   0
 
b = 
       u1
   x1   2
 
c = 
       x1
   y1   1
 
d = 
       u1
   y1   1
 
(values computed with all internal delays set to zero)

Internal delays: 0.5  0.5  1.2  
 
Continuous-time model.

See Also

|

Introduced in R2007a

Was this topic helpful?