System concept
The satellite constellation combat training system is built around three coordinated elements: a formation exercise direction and control system, a comprehensive situation simulation system, and an integrated training network. Together, they combine live participating forces with virtual entities, allowing exercises to retain the flexibility of simulation while preserving the interaction and operational context of real equipment.
Formation exercise direction and control system
This system serves as the control center of the training architecture. It is deployed on the command, control, and evaluation equipment supporting the participating satellite constellation. Its responsibilities include exercise direction, control of the training process, and simulation of interactions between live and virtual forces.
Its functions can be organized into three stages:
- Exercise preparation: defining the operational scenario, loading the battlefield environment, and generating virtual forces.
- Exercise control: exchanging data, generating and distributing the operational situation, simulating engagements between live and virtual forces, and adjudicating results.
- Exercise management: monitoring the training process, collecting data, evaluating performance, and supporting recording and replay.
The system is composed of several functional subsystems:
<table> <thead> <tr> <th>Subsystem</th> <th>Main role</th> </tr> </thead> <tbody> <tr> <td>Computer simulation subsystem</td> <td>Generates virtual forces, simulates engagements, and controls the simulation process.</td> </tr> <tr> <td>Integrated situation display subsystem</td> <td>Fuses and presents the operational situation through two-dimensional and three-dimensional visualization.</td> </tr> <tr> <td>Exercise direction and control subsystem</td> <td>Provides human-machine interaction, monitors commands, and dynamically adjusts the battlefield environment.</td> </tr> <tr> <td>Database subsystem</td> <td>Stores training data and supports data queries and replay.</td> </tr> <tr> <td>Agent management subsystem</td> <td>Maintains the mapping between live and virtual forces and filters interaction information.</td> </tr> <tr> <td>Training monitoring and adjudication subsystem</td> <td>Monitors the exercise situation in real time, determines engagement outcomes, and assesses losses.</td> </tr> <tr> <td>Training evaluation subsystem</td> <td>Collects data, analyzes training effectiveness, and produces evaluation reports.</td> </tr> </tbody> </table>Comprehensive situation simulation
The situation simulation system is intended to improve the realism of training by reproducing the operational picture and behavior of both live and virtual forces. It consists of two principal components: an embedded training system integrated with the satellite constellation and a hardware-in-the-loop simulation system.
Embedded training system for the satellite constellation
The embedded system combines several types of terminals and simulation functions.
- Live-virtual interaction control terminals: These include simulation computers, live-virtual fusion terminals, and operator consoles. They drive sensor, weapon, and navigation simulation while supporting data exchange and exercise management.
- Embedded sensor terminals: Installed within radar, electronic warfare, infrared or electro-optical, and sonar equipment, these terminals inject simulated target signals into the actual equipment to reproduce sensing and detection processes.
- Embedded weapon-system terminals: These simulate the effects of soft- and hard-kill weapon employment, such as missile launches and the release of decoys, while returning corresponding ammunition-status information.
- Navigation simulation system: This system reproduces the satellite constellation’s position, velocity, and related navigation functions.
The embedded software supports three broad categories of activity:
- Training simulation covering the battlefield environment, sensors, weapon systems, and navigation.
- Process management including simulation control, monitoring and adjudication, data collection, and recording.
- System interaction with the formation direction and control system, including the receipt of exercise-control instructions and adjudication results.
Hardware-in-the-loop simulation
The hardware-in-the-loop component uses manned or unmanned platforms carrying portable payloads. These payloads reproduce target signals and complex electromagnetic conditions, adding a more realistic external environment to the exercise and strengthening the connection between simulated events and the participating equipment.
Integrated training network
The network layer provides the communications foundation for the exercise. It contains a wireless communications network linking participating satellite constellations with one another and with the control center, as well as an internal Ethernet network within each constellation.
Wireless communications network
The wireless network carries data between the participating satellite constellations and the control center. Its traffic includes three main categories:
- Operational command information: command instructions issued to live forces.
- Exercise direction and control information: intervention instructions from the exercise control organization, such as scenario changes and the insertion of unexpected events.
- Force interaction information: the status and behavior of live and virtual forces, including position, velocity, damage or loss status, maneuvering, and weapon engagements.
Internal constellation Ethernet
The internal Ethernet network supports data exchange among equipment within a satellite constellation. It connects the live-virtual interaction control terminals, embedded sensor and weapon terminals, the navigation simulation system, and the command-and-control system. This network enables the embedded modules and actual onboard systems to operate together during training.
By placing exercise direction and control at the center, using situation simulation to connect virtual entities with real equipment, and relying on dedicated communications networks for information exchange, the architecture forms an integrated loop of control, simulation, and interaction. It is designed to address the limited adversarial character, high cost, and restricted realism often associated with conventional training, while providing a more flexible technical basis for satellite constellation combat exercises.