DOLLAR_f

Delay operator

Block Screenshot

Contents

• Delay operator +

  • Palette
  • Description
  • Dialog box
  • Default properties
  • Example
  • Interfacing function
  • Computational function

Palette

• Discrete time systems palette

Description

The Unit Delay block delays its input by the specified sample period. This block is equivalent to the 1/z discrete-time operator. The block accepts one input and generates one output, which can be either both scalar or both vector. If the input is a vector, all elements of the vector are delayed by the same sample period.

Dialog box

• initial condition The output of the simulation for the first sampling period, during which the output of the Unit Delay block is otherwise undefined. Properties : Type ‘vec’ of size -1.
• Inherit (no:0, yes:1) When “Inherit” is yes, the block inherit its event input. Properties : Type ‘vec’ of size -1.

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: dollar

Example

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Interfacing function

• SCI/modules/scicos_blocks/macros/Linear/DOLLAR_f.sci

Computational function

• SCI/modules/scicos_blocks/src/fortran/dollar.f (Type 0)