Simulate response of dynamic system to arbitrary inputs and return plot handle
h = lsimplot(sys)
lsimplot(sys1,sys2,...)
lsimplot(sys,u,t)
lsimplot(sys,u,t,x0)
lsimplot(sys1,sys2,...,u,t,x0)
lsimplot(AX,...)
lsimplot(..., plotoptions)
lsimplot(sys,u,t,x0,'zoh')
lsimplot(sys,u,t,x0,'foh')
h = lsimplot(sys) opens the Linear Simulation
Tool for the dynamic
system model sys, which enables
interactive specification of driving input(s), the time vector, and
initial state. It also returns the plot handle h. You can use this
handle to customize the plot with the getoptions and setoptions commands.
Type
help timeoptions
for a list of available plot options.
lsimplot(sys1,sys2,...) opens the Linear
Simulation Tool for multiple models sys1,sys2,....
Driving inputs are common to all specified systems but initial conditions
can be specified separately for each.
lsimplot(sys,u,t) plots the time response
of the model sys to the input signal described
by u and t. The time vector t consists
of regularly spaced time samples (in system time units, specified
in the TimeUnit property
of sys). For MIMO systems, u is
a matrix with as many columns as inputs and whose ith
row specifies the input value at time t(i). For
SISO systems u can be specified either as a row
or column vector. For example,
t = 0:0.01:5; u = sin(t); lsimplot(sys,u,t)
simulates the response of a single-input model sys to
the input u(t)=sin(t) during 5 seconds.
For discrete-time models, u should be sampled
at the same rate as sys (t is
then redundant and can be omitted or set to the empty matrix).
For continuous-time models, choose the sampling period t(2)-t(1) small
enough to accurately describe the input u. lsim issues
a warning when u is undersampled, and hidden oscillations
can occur.
lsimplot(sys,u,t,x0) specifies the initial
state vector x0 at time t(1) (for
state-space models only). x0 is set to zero when
omitted.
lsimplot(sys1,sys2,...,u,t,x0) simulates
the responses of multiple LTI models sys1,sys2,...
on a single plot. The initial condition x0 is optional.
You can also specify a color, line style, and marker for each system,
as in
lsimplot(sys1,'r',sys2,'y--',sys3,'gx',u,t)
lsimplot(AX,...) plots into the axes with
handle AX.
lsimplot(..., plotoptions) plots the initial
condition response with the options specified in plotoptions.
Type
help timeoptions
for more detail.
For continuous-time models, lsimplot(sys,u,t,x0,'zoh') or lsimplot(sys,u,t,x0,'foh') explicitly
specifies how the input values should be interpolated between samples
(zero-order hold or linear interpolation). By default, lsimplot selects
the interpolation method automatically based on the smoothness of
the signal u.
getoptions | lsim | setoptions