Application of a Multi-Satellite Dynamic Mission Scheduling Model Based on Mission Priority in Emergency Response

Area of Science:

• Earth and Space Sciences
• Satellite Technology
• Operations Research

Background:

• Emergency observations by Earth observation satellites are critical for time-sensitive missions like disaster monitoring.
• Current scheduling models face challenges with dynamic, high-priority emergency missions.

Purpose of the Study:

• To propose a multi-satellite dynamic mission scheduling model prioritizing emergency observations.
• To develop a mission priority calculation model considering seven impact factors.
• To address the complexities of dynamic mission arrivals before schedule release.

Main Methods:

• A multi-satellite dynamic mission scheduling model based on mission priority.
• A mission priority calculation model incorporating seven impact factors.
• A hybrid genetic tabu search algorithm for initial scheduling.
• A dynamic scheduling algorithm for newly arrived emergency missions.

Main Results:

• The model significantly increased the execution probability of high-priority emergency missions.
• Satellite resources were effectively allocated to new missions based on priority.
• The approach reduced dynamic adjustment complexity while maintaining schedule stability.

Conclusions:

• The proposed mission priority-based model effectively manages dynamic emergency observation scheduling.
• This method improves the responsiveness and efficiency of Earth observation satellite operations.
• The model ensures timely execution of critical, high-priority missions under dynamic conditions.