RAMP

Block Screenshot

Contents

• Ramp

• • Palette

  • Description

  • Data types

  • Dialog box

  • Default properties

  • Example

  • Interfacing function

  • Computational function

  • See also

  • Authors

Palette

• Sources palette

Description

The Ramp block generates a signal that starts at a specified Start Time and Initial Value and increases by a specified rate (Slope parameter). The output signal is defined by the following equation:

where t0 is the Start Time, s0 the Initial Value and k the Slope.

Data types

• Output: scalar double.

Dialog box

• Slope

  Scalar. The rate of change of the generated signal.

  Properties : Type 'vec' of size 1.

• Start Time

  Scalar. The time at which the signal begins to increase.

  Properties : Type 'vec' of size 1.

• Initial Value

  Scalar. The initial value of the signal.

  Properties : Type 'vec' of size 1.

Default properties

• always active: yes

• direct-feedthrough: no

• zero-crossing: yes

• mode: yes

• regular outputs:

  - port 1 : size [1,1] / type 1

• number/sizes of activation inputs: 0

• number/sizes of activation outputs: 0

• continuous-time state: no

• discrete-time state: no

• object discrete-time state: no

• name of computational function: ramp

Example

This diagram shows the use of RAMP block to obtain the response to a ramp signal of a first order's system defined by a transfer function. Open this example in Xcos.

Interfacing function

• SCI/modules/scicos_blocks/macros/Sources/RAMP.sci

Computational function

• SCI/modules/scicos_blocks/src/c/ramp.c (Type 4)

See also

• STEP_FUNCTION
• CURV_f
• Sigbuilder

Authors

Ramine Nikoukhah - INRIA