sysconv — system conversion
[s1,s2]=sysconv(s1,s2)
Converts s1
and s2
into common representation in order that
system interconnexion operations can be applied. Utility function for
experts. The conversion rules in given in the following table.
continuous time system
discrete time system
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:
sampling period
the continuous-time system s is transformed into a sampled system with sampling period n.
conversion to continuous (time domain is "c"
)
conversion to discrete (time domain is "d"
)
conversion to samples system with period n