Current Velocity

R2026b

Reads current velocity

Since R2026a

• 

Current Velocity block

To add a block to a model, double-click the canvas and start typing the block name. Then, select the block from the list.

Libraries:
UAV Toolbox Support Package for ArduPilot Autopilots / Controller Interface Blocks / Common Blocks

Description

Add-On Required: This feature requires the UAV Toolbox Support Package for ArduPilot Autopilots add-on.

The Current Velocity block outputs the vehicle's current velocity (in m/s) in the NED (North-East-Down) frame, which is a geographic coordinate system used in navigation.

• North (N): Positive direction points toward the North (geographical north).

• East (E): Positive direction points toward the East (perpendicular to North, in the horizontal plane).

• Down (D): Positive direction points downward, toward the Earth's center (vertical component).

This block supports both ArduCopter and ArduPlane vehicle types.

Ports

Output

Port_1 — Current velocity

vector

Vehicle's current velocity in m/s in the NED (North-East-Down) frame.

Data Types: single

Parameters

Sample time — Interval at which the block reads values

-1 (default)

The time interval at which the block reads values from the ArduPilot Autopilot.

Programmatic Use: Add Block

To add the block programmatically, use the add_block function with one of these library block paths as the source.

"ardupilotCommonlib/Current Velocity"

Example: add_block("ardupilotCommonlib/Current Velocity","myModel/myBlock",MakeNameUnique="on")

Version History

Introduced in R2026a

R2026b: Added support for ArduPlane vehicles

The Current Ang Velocity block now supports ArduPlane vehicles in addition to ArduCopter vehicles.