RoboticExplorationLab / Spacecraft-Rendevouz--Matlab

spacecraft-rendevouz-matlab

This repo is an example of a chaser spacecraft performing a fuel-optimal rendevouz manuever toward a target spacecraft. The implementation is done in MATLAB R2024a. It is currently solving with the SeDuMi solver (free solver included in CVX).

Package Requirements

• Download the CVX package for MATLAB: https://github.com/cvxr/cvx
• Follow the installation instructions in the following page: https://cvxr.com/cvx/download/

Implementation

• Model: Clohessy Wiltshire (CW) Equations
• Objective: Minimize the L1 norm of the controls. (assuming impulsive burns)
• Constraints:
  • Dynamics Constraint (Discrete CW Equations)
  • Thrust limit
  • Initial Chaser Position
  • Goal Chaser Position

Variables that can tuned for a specific appliation:

• Target Satellite Orbit altitude
• Chaser initial position
• Mass
• Timestep, amount of knot points, total time to execute the maneuver
• Solver settings