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The "current" flag in LQGREG is obsolete. Use KALMAN to set the type of the Kalman estimator.

Last post by esmatparast « Tue Mar 02, 2021 5:49 pm

by esmatparast » Tue Mar 02, 2021 5:49 pm

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Last post by esmatparast
Tue Mar 02, 2021 5:49 pm
Exact tracking cannot be achieved for plants with fewer inputs than outputs.

Last post by esmatparast « Tue Mar 02, 2021 5:48 pm

by esmatparast » Tue Mar 02, 2021 5:48 pm

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393 Views

Last post by esmatparast
Tue Mar 02, 2021 5:48 pm
The third input argument of the "reg" command must have as many rows as states and as many columns as measurements y.

Last post by esmatparast « Tue Mar 02, 2021 5:48 pm

by esmatparast » Tue Mar 02, 2021 5:48 pm

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473 Views

Last post by esmatparast
Tue Mar 02, 2021 5:48 pm
In the "reg(SYS,K,L,SENSORS,KNOWN,CONTROLS)" command, the combined length of KNOWN and CONTROLS cannot exceed the number

Last post by esmatparast « Tue Mar 02, 2021 5:47 pm

by esmatparast » Tue Mar 02, 2021 5:47 pm

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Last post by esmatparast
Tue Mar 02, 2021 5:47 pm
The "place" command could not place the poles at the specified locations. Probable causes include:\n* (A,B) is nearly un

Last post by esmatparast « Tue Mar 02, 2021 5:47 pm

by esmatparast » Tue Mar 02, 2021 5:47 pm

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511 Views

Last post by esmatparast
Tue Mar 02, 2021 5:47 pm
The "place" command cannot place poles with multiplicity greater than rank(B).

Last post by esmatparast « Tue Mar 02, 2021 5:47 pm

by esmatparast » Tue Mar 02, 2021 5:47 pm

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1206 Views

Last post by esmatparast
Tue Mar 02, 2021 5:47 pm
In the "place(A,B,P)" command, the matrix A must have as many rows as B.

Last post by esmatparast « Tue Mar 02, 2021 5:46 pm

by esmatparast » Tue Mar 02, 2021 5:46 pm

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610 Views

Last post by esmatparast
Tue Mar 02, 2021 5:46 pm
The first input argument to the "place" command must be a square matrix.

Last post by esmatparast « Tue Mar 02, 2021 5:45 pm

by esmatparast » Tue Mar 02, 2021 5:45 pm

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419 Views

Last post by esmatparast
Tue Mar 02, 2021 5:45 pm
The specified crossover frequency must be smaller than the largest frequency of the FRD model.

Last post by esmatparast « Tue Mar 02, 2021 5:45 pm

by esmatparast » Tue Mar 02, 2021 5:45 pm

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549 Views

Last post by esmatparast
Tue Mar 02, 2021 5:45 pm
The "DesignFocus" property must be set to one of the following: 'reference-tracking', 'disturbance-rejection' or 'balanc

Last post by esmatparast « Tue Mar 02, 2021 5:44 pm

by esmatparast » Tue Mar 02, 2021 5:44 pm

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490 Views

Last post by esmatparast
Tue Mar 02, 2021 5:44 pm
Cannot keep loop gain above 1 at low frequency and below 1 at high frequency. Try adding integrators to the loop.

Last post by esmatparast « Tue Mar 02, 2021 5:44 pm

by esmatparast » Tue Mar 02, 2021 5:44 pm

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581 Views

Last post by esmatparast
Tue Mar 02, 2021 5:44 pm
The PID object specified in the command must have the same sample time and time unit as the plant.

Last post by esmatparast « Tue Mar 02, 2021 5:44 pm

by esmatparast » Tue Mar 02, 2021 5:44 pm

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443 Views

Last post by esmatparast
Tue Mar 02, 2021 5:44 pm
The "NumUnstablePoles" option must be set to a non negative integer.

Last post by esmatparast « Tue Mar 02, 2021 5:43 pm

by esmatparast » Tue Mar 02, 2021 5:43 pm

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432 Views

Last post by esmatparast
Tue Mar 02, 2021 5:43 pm
The "PhaseMargin" option must be set to a real number between 0 and 90 degrees.

Last post by esmatparast « Tue Mar 02, 2021 5:43 pm

by esmatparast » Tue Mar 02, 2021 5:43 pm

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452 Views

Last post by esmatparast
Tue Mar 02, 2021 5:43 pm
The specified crossover frequency must be smaller than the Nyquist frequency (pi/Ts).

Last post by esmatparast « Tue Mar 02, 2021 5:38 pm

by esmatparast » Tue Mar 02, 2021 5:38 pm

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451 Views

Last post by esmatparast
Tue Mar 02, 2021 5:38 pm
The command does not support plant with unspecified sample time (Ts = -1).

Last post by esmatparast « Tue Mar 02, 2021 5:38 pm

by esmatparast » Tue Mar 02, 2021 5:38 pm

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446 Views

Last post by esmatparast
Tue Mar 02, 2021 5:38 pm
Invalid last input argument for the "pidtune" command. Use "pidtuneOptions" to create the option set.

Last post by esmatparast « Tue Mar 02, 2021 5:37 pm

by esmatparast » Tue Mar 02, 2021 5:37 pm

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500 Views

Last post by esmatparast
Tue Mar 02, 2021 5:37 pm
Invalid second input argument of the command. Type "help " for more information.

Last post by esmatparast « Tue Mar 02, 2021 5:37 pm

by esmatparast » Tue Mar 02, 2021 5:37 pm

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403 Views

Last post by esmatparast
Tue Mar 02, 2021 5:37 pm
The first input argument of the command must be a single-input, single-output linear plant model.

Last post by esmatparast « Tue Mar 02, 2021 5:36 pm

by esmatparast » Tue Mar 02, 2021 5:36 pm

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413 Views

Last post by esmatparast
Tue Mar 02, 2021 5:36 pm
Cannot compute a stabilizing LQR gain (the Riccati solution S and gain matrix K are infinite). \nThis could be because:

Last post by esmatparast « Tue Mar 02, 2021 5:36 pm

by esmatparast » Tue Mar 02, 2021 5:36 pm

0 Replies

582 Views

Last post by esmatparast
Tue Mar 02, 2021 5:36 pm
Cannot compute the stabilizing Riccati solution S for the LQR design. \nThis could be because: \n * R is singular, \n *

Last post by esmatparast « Tue Mar 02, 2021 5:35 pm

by esmatparast » Tue Mar 02, 2021 5:35 pm

0 Replies

904 Views

Last post by esmatparast
Tue Mar 02, 2021 5:35 pm
Cannot compute a stabilizing LQR gain (the Riccati solution S and gain matrix K are infinite). \nThis could be because:

Last post by esmatparast « Tue Mar 02, 2021 5:35 pm

by esmatparast » Tue Mar 02, 2021 5:35 pm

0 Replies

617 Views

Last post by esmatparast
Tue Mar 02, 2021 5:35 pm
In the "lqgtrack(KEST,K,...)" command, KEST must have at least { number,integer} inputs and { number,integer} outputs.

Last post by esmatparast « Tue Mar 02, 2021 5:34 pm

by esmatparast » Tue Mar 02, 2021 5:34 pm

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454 Views

Last post by esmatparast
Tue Mar 02, 2021 5:34 pm
In the "lqgtrack(KEST,K,...)" command, K must be a matrix.

Last post by esmatparast « Tue Mar 02, 2021 5:32 pm

by esmatparast » Tue Mar 02, 2021 5:32 pm

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435 Views

Last post by esmatparast
Tue Mar 02, 2021 5:32 pm
In the "lqgtrack(KEST,K,...)" command, Row size of K must match number of control channels u in KEST.

Last post by esmatparast « Tue Mar 02, 2021 5:31 pm

by esmatparast » Tue Mar 02, 2021 5:31 pm

0 Replies

499 Views

Last post by esmatparast
Tue Mar 02, 2021 5:31 pm

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