Mega-Constellation Satellite Jamming Avoidance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Managing flight safety in mega-constellation satellite groups is challenging due to the presence of space objects from other business operators, leading to increased risks of collisions and orbit prediction errors when propulsion devices are operated to change orbit characteristics.
Innovation Solution
The method involves changing the orbital altitude for each orbital plane with different normal vectors in a mega-constellation satellite group to avoid a jamming satellite controlled by a different ground device, thereby preventing collisions with space objects from other business operators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If propulsion devices are operated moment to moment to change orbit characteristics, then collision avoidance capability is improved, but orbit prediction error becomes large and timing management reliability deteriorates
Solution Approach 1:
The patent applies preliminary action by performing avoidance maneuvers in advance rather than moment-to-moment adjustments. The mega-constellation satellites change their orbital altitudes ahead of time to avoid jamming satellites, which reduces the need for continuous propulsion operations and minimizes orbit prediction errors while maintaining collision avoidance capability.
Solution Approach 2:
The patent changes orbital parameters (specifically orbital altitude) to resolve the contradiction. By adjusting the orbital altitude parameter in advance, the system achieves collision avoidance without requiring continuous moment-to-moment propulsion operations, thereby reducing orbit prediction errors and improving timing management reliability.
2Reliability
If orbital altitude is changed for each orbital plane to avoid jamming satellites, then collision avoidance capability is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the mega-constellation into multiple orbital planes, each with its own normal vector. Each orbital plane independently changes its orbital altitude to avoid jamming satellites, which simplifies the control problem while maintaining overall collision avoidance capability across the entire constellation.
Solution Approach 2:
The patent utilizes the orbital altitude dimension to achieve collision avoidance. By changing orbital altitude for each orbital plane, the system adds a vertical dimension to the avoidance strategy, allowing satellites to pass above or below potential collision zones without complex in-plane maneuvering.
3Reliability
If strict timing management is implemented for collision avoidance, then flight safety is improved, but loss of time and operational efficiency deteriorate
Solution Approach 1:
The patent implements preliminary action by performing avoidance maneuvers in advance rather than relying on strict real-time timing management. Satellites adjust their orbital altitudes before potential collision scenarios arise, which maintains flight safety while eliminating the need for continuous timing coordination and reducing operational overhead.
Data Source
AI summary
A jamming satellite avoidance method changes an orbital altitude for each of orbital planes with different normal vectors in a mega-constellation satellite group composed of 100 or more satellites, so as to avoid a jamming satellite controlled by a ground device that is different from a device that controls the mega-constellation satellite group. The jamming satellite is an artificial satellite that includes a propulsion device and adopts a nominal orbital altitude and a nominal orbital inclination at which the mega-constellation satellite group flies, and maintains an average orbital altitude and an average orbital inclination while operating the propulsion device irregularly, and is controlled by the ground device that is different from the device that controls the mega-constellation satellite group.