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sysconv(1) Scilab Function sysconv(1)
NAME
sysconv - system conversion
CALLING SEQUENCE
[s1,s2]=sysconv(s1,s2)
PARAMETERS
s1,s2 : list (linear syslin systems)
DESCRIPTION
Converts s1 and s2 into common representation in order that system inter-
connexion operations can be applied. Utility function for experts. The
conversion rules in given in the following table.
"c" : continuous time system
"d" : discrete time system
n : sampled system with sampling period n
[] : system with undefined time domain
For mixed systems s1 and s2 are put in state-space representation.
s1\s2| "c" | "d" | n2 | [] |
---------------------------------------------------------------
"c" | nothing |uncompatible | c2e(s1,n2) | c(s2) |
---------------------------------------------------------------
"d" |uncompatible| nothing | e(s1,n2) | d(s2) |
---------------------------------------------------------------
n1 | c2e(s2,n1) | e(s2,n1) | n1<>n2 uncomp | e(s2,n1) |
| | | n1=n2 nothing | |
---------------------------------------------------------------
[] | c(s1) | d(s1) | e(s1,n2) | nothing |
---------------------------------------------------------------
With the following meaning:
n1,n2 : sampling period
c2e(s,n) : the continuous-time system s is transformed into a sampled
system with sampling period n.
c(s) : conversion to continuous (time domain is "c")
d(s) : conversion to discrete (time domain is "d")
e(s,n) : conversion to samples system with period n
EXAMPLE
s1=ssrand(1,1,2);
s2=ss2tf(s1);
[s1,s2]=sysconv(s1,s2);
SEE ALSO
syslin, ss2tf, tf2ss
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