Specifications

impulse
16-98
Algorithm Continuous-time models are first converted to state space. The impulse
response of a single-input state-space model
is equivalent to the following unforced response with initial state .
To simulate this response, the system is discretized using zero-order hold on
the inputs. The sampling period is chosen automatically based on the system
dynamics, except when a time vector
t = 0:dt:Tf is supplied (dt is then used
as sampling period).
Limitations Theimpulseresponse of acontinuoussystemwith nonzero matrixisinfinite
at .
impulse ignores this discontinuity and returns the lower continuity
value at .
See Also ltiview LTI system viewer
step Step response
initial Free response to initial condition
lsim Simulateresponsetoarbitraryinputs
x
·
Ax bu+=
yCx=
b
x
·
Ax ,= x 0
()
b=
yCx=
D
t 0=
Cb t 0=