Advertisement
Published in:
2017 | OriginalPaper | Chapter
CNP Based Satellite Constellation Online Coordination Under Communication Constraints
Authors : Guoliang Li, Lining Xing, Yingwu Chen
Published in: Intelligent Robotics and Applications
Publisher: Springer International Publishing
Activate our intelligent search to find suitable subject content or patents.
Select sections of text to find matching patents with Artificial Intelligence. powered by
Select sections of text to find additional relevant content using AI-assisted search. powered by
Abstract
This paper focuses on online managing Earth observation satellite constellation under dynamic environment, like detecting, observing, and tracking forest fires or volcanic eruptions without ground interval. In reality, the inter-satellite communication is limited by practical reasons. The objective is to maximize the total profit of the satellite constellation by increasing the efficiency of onboard resources and coordinating the different satellite to provide a greater level of responsiveness and adaptability, subject to communication time window constraints and observation time window constraints. Firstly, the online scheduling algorithm for a single satellite is proposed on basis of revision techniques and progressive techniques. Then, we propose the novel online coordination mechanism and the core algorithm based on Contract Net Protocol.
Computational experiments indicate that the profit of the proposed online coordination scheduling mechanism is much higher than online individually scheduling mode and offline scheduling mode. Especially, to the stochastic arrival of urgent task, the proposed online coordination mechanism outperforms the other two modes both on the number and the percentage of successfully scheduled urgent tasks under different spatial and temporal distribution.