User`s guide
Table Of Contents
- Preface
- Quick Start
- LTI Models
- Introduction
- Creating LTI Models
- LTI Properties
- Model Conversion
- Time Delays
- Simulink Block for LTI Systems
- References
- Operations on LTI Models
- Arrays of LTI Models
- Model Analysis Tools
- The LTI Viewer
- Introduction
- Getting Started Using the LTI Viewer: An Example
- The LTI Viewer Menus
- The Right-Click Menus
- The LTI Viewer Tools Menu
- Simulink LTI Viewer
- Control Design Tools
- The Root Locus Design GUI
- Introduction
- A Servomechanism Example
- Controller Design Using the Root Locus Design GUI
- Additional Root Locus Design GUI Features
- References
- Design Case Studies
- Reliable Computations
- Reference
- Category Tables
- acker
- append
- augstate
- balreal
- bode
- c2d
- canon
- care
- chgunits
- connect
- covar
- ctrb
- ctrbf
- d2c
- d2d
- damp
- dare
- dcgain
- delay2z
- dlqr
- dlyap
- drmodel, drss
- dsort
- dss
- dssdata
- esort
- estim
- evalfr
- feedback
- filt
- frd
- frdata
- freqresp
- gensig
- get
- gram
- hasdelay
- impulse
- initial
- inv
- isct, isdt
- isempty
- isproper
- issiso
- kalman
- kalmd
- lft
- lqgreg
- lqr
- lqrd
- lqry
- lsim
- ltiview
- lyap
- margin
- minreal
- modred
- ndims
- ngrid
- nichols
- norm
- nyquist
- obsv
- obsvf
- ord2
- pade
- parallel
- place
- pole
- pzmap
- reg
- reshape
- rlocfind
- rlocus
- rltool
- rmodel, rss
- series
- set
- sgrid
- sigma
- size
- sminreal
- ss
- ss2ss
- ssbal
- ssdata
- stack
- step
- tf
- tfdata
- totaldelay
- zero
- zgrid
- zpk
- zpkdata
- Index

ssdata
11-218
11ssdata
Purpose Quick access to state-space model data
Syntax [a,b,c,d] = ssdata(sys)
[a,b,c,d,Ts] = ssdata(sys)
Description [a,b,c,d] = ssdata(sys) extracts the matrix (or multidimensional array)
data from the state-space model (LTI array)
sys.Ifsys is a
transfer function or zero-pole-gain model (LTI array), it is first converted to
state space. See Table 11-16, “State-Space Model Properties,” on page 11-196
for more information on the format of state-space model data.
[a,b,c,d,Ts] = ssdata(sys) returns the sample time Ts in addition to a, b,
c,andd.
You can access the remaining LTI properties of
sys with get or by direct
referencing, for example,
sys.statename
See Also dssdata Quick access to descriptor state-space data
get Get properties of LTI models
set Set model properties
ss Specify state-space models
tfdata Quick access to transfer function data
zpkdata Quick access to zero-pole-gain data
ABCD
,,,()