8.7 - The Missile Entity Behavior Model

Table of Contents

• 8.7.1 Core Elements of Missiles
• 8.7.2 Component Systems that make up a Missile
  • 8.7.2.1 A Specific Example: TOW2 Missile
  • 8.7.2.2 Systems
  • 8.7.2.3 Other Simulation Components
    • Sensors:
    • Controllers
    • Actuators

Missiles are simulated as platform-level entities in VR-Forces.

The missile model is used to represent various categories of missiles, such as:

• TOW Anti-tank
• AIM-9 Sidewinder Air-to-air
• MK-48 Torpedo

Missiles are typically fired from a launcher, a behavior model subsystem configured as part of the firing entity.

8.7.1 Core Elements of Missiles

Missiles in VR-Forces share certain common elements. A typical missile in VR-Forces is always configured with the following:

• DtMissileStateRepository – Holds state information specific to missiles
• DtSimIndividualLocalEntityNetInterface – Handles network publishing (platform-level entities)

8.7.2 Component Systems that make up a Missile

Missiles also share many of the same systems and simulation components (controllers and actuators). To examine the systems typically configured on a missile, we'll look at a specific instance of a missile, the TOW missile. Differences arise between the various types of entities as a function of which particular sub-systems are configured on them, and the parameter values it is configured with.

8.7.2.1 A Specific Example: TOW2 Missile

Defined in parameter files Missile.ope and BGM-71_TOW_Missile.entity.

The figure below shows which systems and simulation components are configured as part of a TOW2 missile. The boxes (nodes) represent either a system of components (DtComponentSystem) or indivdiual DtSimComponent classes. The edges connecting the boxes indicate port or port group connections between components.

TOW Missile

8.7.2.2 Systems

• Missile Damage – Models the damage characteristics of the missile.
• Missile Dynamics – Models the movement behavior of the missile.

8.7.2.3 Other Simulation Components

Individual DtSimComponents (not organized as part of a system) that make up the rest of entity:

Sensors:

There are no sensors configured as part of a missile entity.

Controllers

• DtScriptMultiTaskController – The controller for scripted tasks.
• DtScriptReactiveTaskController – The controller for reactive scripted tasks.
• DtLocalEntitySetController – Respond to a DtSetDataRequest, such as set location, set heading.

Actuators

There are no actuators configured as part of a missile entity.

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