Scicos Block
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Discrete state-space system

Contents

• Discrete state-space system
  • Palette
  • Description
  • Dialog box
  • Default properties
  • Interfacing function
  • Computational function

Palette

• Linear - Linear Palette

Description

This block realizes a discrete-time linear state-space system. The system is defined by the (A,B,C,D) matrices and the initial state x_0. The dimensions must be compatible. At the arrival of an input event on the unique input event port, the state is updated.

Dialog box

• A matrix
  A square matrix.
  Properties : Type 'mat' of size [-1,-1].

• B matrix
  The B matrix, [] if system has no input.
  Properties : Type 'mat' of size ["size(%1,2)","-1"].

• C matrix
  The C matrix , [] if system has no output.
  Properties : Type 'mat' of size ["-1","size(%1,2)"].

• D matrix
  The D matrix, [] if system has no D term.
  Properties : Type 'mat' of size [-1,-1].

• Initial state
  A vector/scalar initial state of the system.
  Properties : Type 'vec' of size "size(%1,2)".

Default properties

• always active: no
• direct-feedthrough: no
• zero-crossing: no
• mode: no
• regular inputs:
  - port 1 : size [1,1] / type 1
  
• regular outputs:
  - port 1 : size [1,1] / type 1
  
• number/sizes of activation inputs: 1
• number/sizes of activation outputs: 0
• continuous-time state: no
• discrete-time state: yes
• object discrete-time state: no
• name of computational function: dsslti4

Interfacing function

• SCI/macros/scicos_blocks/Linear/DLSS.sci [view code]

Computational function

• SCI/routines/scicos/dsslti4.c (Type 4) [view code]