MATLAB CONTROL SYSTEM TOOLBOX 9 Specifikace stáhnout pdf (Strana 484)

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16-144

step(h,'-',hmdc,'-.',hdel,'--')

While hdel accurately reflects the transient behavior, only hmdc gives the true

steady-state response.

Algorithm The algorithm for the matched DC gain method is as follows. For

continuous-time models

the state vector is partitioned into , to be kept, and , to be eliminated.

x

·

Ax Bu+=

yCxDu+=

x

1

x

2

x

·

1

x

·

2

A

11

A

12

A

21

A

22

x

1

x

2

B

1

B

2

u+=

y

C

1

C

2

xDu+=

1 2 ... 479 480 481 482 483 484 485 486 487 488 489 ... 590 591

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