Node:systime, Next:sysfreq, Previous:sysprop, Up:Control Theory
| c2d (sys, opt, t) | Function File |
| c2d (sys, t) | Function File |
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Converts the system data structure describing:
. x = Ac x + Bc uinto a discrete time equivalent model: x[n+1] = Ad x[n] + Bd u[n]via the matrix exponential or bilinear transform. Inputs
Output
This function adds the suffix |
| d2c (sys, tol) | Function File |
| d2c (sys, opt) | Function File |
Convert a discrete (sub)system into a purely continuous one.
The sampling time used is sysgettsam(sys).
Inputs
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| [dsys, fidx] = dmr2d (sys, idx, sprefix, ts2, cuflg) | Function File |
convert a multirate digital system to a single rate digital system
states specified by idx, sprefix are sampled at ts2, all
others are assumed sampled at ts1 = sysgettsam (sys).
Inputs
Outputs
WARNING Not thoroughly tested yet; especially when cuflg == 0. |
| damp (p, tsam) | Function File |
| Displays eigenvalues, natural frequencies and damping ratios of the eigenvalues of a matrix p or the A matrix of a system p, respectively. If p is a system, tsam must not be specified. If p is a matrix and tsam is specified, eigenvalues of p are assumed to be in z-domain. |
| dcgain (sys, tol) | Function File |
| Returns dc-gain matrix. If dc-gain is infinite an empty matrix is returned. The argument tol is an optional tolerance for the condition number of the A Matrix in sys (default tol = 1.0e-10) |
| [y, t] = impulse (sys, inp, tstop, n) | Function File |
Impulse response for a linear system.
The system can be discrete or multivariable (or both).
If no output arguments are specified, impulse
produces a plot or the impulse response data for system sys.
Inputs
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| [y, t] = step (sys, inp, tstop, n) | Function File |
Step response for a linear system.
The system can be discrete or multivariable (or both).
If no output arguments are specified, step
produces a plot or the step response data for system sys.
Inputs
When invoked with the output parameter y the plot is not displayed. |