Artificial Horizon

Represent aircraft attitude relative to horizon

expand all in page
  • Library:

  • Aerospace Blockset / Flight Instruments

  • Artificial Horizon block

Description

The Artificial Horizon block represents aircraft attitude relative to horizon and displays roll and pitch in degrees:

  • Values for roll cannot exceed +/– 90 degrees.

  • Values for pitch cannot exceed +/– 30 degrees.

If the values exceed the maximum values, the gauge maximum and minimum values do not change.

Changes in roll value affect the gauge semicircles and the ticks located on the black arc turn accordingly. Changes in pitch value affect the scales and the distribution of the semicircles.

Combine the roll and pitch signals in a Mux block in the order:

  1. Roll

  2. Pitch

Tip

To facilitate understanding and debugging your model, you can modify instrument block connections in your model during normal and accelerator mode simulations.

Parameters

expand all

Connect to 2-element signal for display, selected from list of signal names. The 2-element signal consists of roll and pitch combined together in a Mux block, in degrees. You connect and display this combined signal. This input cannot be a bus signal.

To view the data from a signal, select a signal in the model. The signal appears in the Connection table. Select the option button next to the signal you want to display. Click Apply to connect the signal.

The table has a row for the signal connected to the block. If there are no signals selected in the model, or the block is not connected to any signals, the table is empty.

To view the data from a signal, select a signal in the model. The signal appears in the Connection table. Select the option button next to the signal you want to display. Click Apply to connect the signal.

The table has a row for the signal connected to the block. If there are no signals selected in the model, or the block is not connected to any signals, the table is empty.

Block label, displayed at the top or bottom of the block, or hidden.

  • Top

    Show label at the top of the block.

  • Bottom

    Show label at the bottom of the block.

  • Hide

    Do not show the label or instructional text when the block is not connected.

Programmatic Use

Block Parameter: LabelPosition
Type: character vector
Values: 'Top' | 'Bottom' | 'Hide'
Default: 'Top'

Model Examples

HL-20 with Flight Instrumentation Blocks

HL-20 with Flight Instrumentation Blocks

NASA's HL-20 lifting body and controller modeled in Simulink® and Aerospace Blockset™ software. This model simulates approach and landing flight phases using an auto-landing controller. The Visualization subsystem uses aircraft-specific gauges from the Aerospace Blockset™ Flight Instrumentation library.

Open Model
HL-20 with Simulink® 3D Animation™ and Flight Instrumentation Blocks

HL-20 with Simulink® 3D Animation™ and Flight Instrumentation Blocks

NASA's HL-20 lifting body and controller modeled in Simulink®, Aerospace Blockset™, and Simulink® 3D Animation™ software. This model simulates approach and landing flight phases using an auto-landing controller. The Visualization subsystem uses aircraft-specific gauges from the Aerospace Blockset™ Flight Instrumentation library.

Open Model

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

See Also

| | | | | |

Topics

Introduced in R2016a

Aerospace Blockset Documentation

Support