Python modules under Class/.

Core Classes

1. Node.py
   • Purpose: Base class for all nodes (satellites and ground stations).
   • Usage:
     • Create a Node object to represent a network node.
     • Configure VLAN interfaces, IP addresses, and manage ARP tables.
   • Related Files:
     • Extended by Satellite.py and Ground_Station.py.
2. Orbit.py
   • Purpose: Base class for handling satellite orbits using TLE data.
   • Usage:
     • Create an Orbit object to store and manage TLE data.
   • Related Files:
     • Extended by SGP4.py and TwoBody.py for orbit propagation.
3. Scenario.py
   • Purpose: Manages the overall emulation scenario.
   • Usage:
     • Load configuration from TOML files.
     • Manage nodes and channels.
     • Generate runtime scripts and CZML files for visualization.
   • Related Files:
     • Interacts with Node.py, Channel.py, and Satellite.py.

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Extended Classes

1. Satellite.py
   • Purpose: Extends Node to represent satellites.
   • Usage:
     • Create a Satellite object to propagate satellite positions.
     • Generate CZML data for visualization.
   • Related Files:
     • Uses Orbit.py for orbit data.
2. Ground_Station.py
   • Purpose: Extends Node to represent ground stations.
   • Usage:
     • Create a GroundStation object to represent static nodes on Earth.
     • Generate CZML data for visualization.

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Orbit Propagation Models

1. SGP4.py
   • Purpose: Implements the SGP4 model for orbit propagation.
   • Usage:
     • Use the _ECEF, _POS, or _ECI methods to calculate satellite positions in different coordinate systems.
   • Related Files:
     • Extends Orbit.py.
2. TwoBody.py
   • Purpose: Implements a two-body model for orbit propagation.
   • Usage:
     • Use as an alternative to the SGP4 model for simpler orbit calculations.
   • Related Files:
     • Extends Orbit.py.

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Communication and Channels

1. Channel.py
   • Purpose: Handles communication channels between nodes.
   • Usage:
     • Create a Channel object to calculate delays and manage channel properties.
     • Generate CZML data for visualizing communication links.
   • Related Files:
     • Uses channel_threshold.py for threshold calculations.
2. channel_threshold.py
   • Purpose: Defines thresholds and parameters for channel configurations.
   • Usage:
     • Use to manage or calculate thresholds for communication channels.

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Table of contents

• Routing (routing.py)
• TLE generator
• Time, server & misc