Distributed Ground Station Network for Satellite Communication
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Solution Overview
Problem
Conventional satellite ground stations are expensive, inflexible, and limited in scalability, making them unsuitable for large-scale, cost-effective communication and experimentation with low Earth orbiting satellites like Cube-satellites, particularly due to the short temporal window for communication and challenges in achieving precise stabilization and orientation.
Innovation Solution
A distributed control and packetized data network system using a computational cloud to coordinate a network of geographically dispersed, portable, and mobile ground stations, enabling synchronized communication and actuation with low Earth orbiting satellites, overcoming the limitations of traditional ground stations through dynamic control and feedback mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional satellite ground stations are used, then communication with satellites is possible, but the system is expensive and has limited scalability
Solution Approach 1:
The patent divides the ground station system into multiple distributed portable ground stations instead of using a single conventional ground station. Each portable ground station can independently communicate with satellites, and multiple stations work together to form a scalable network. This segmentation allows the system to scale by simply adding more portable stations without requiring expensive conventional infrastructure.
Solution Approach 2:
The patent employs inexpensive portable ground stations with simplified hardware compared to conventional ground stations. These portable stations use off-the-shelf components and can be deployed temporarily or permanently as needed. The lower cost per unit enables large-scale deployment and improves scalability while reducing the overall system complexity and investment required.
2Duration of action of moving object
If a single ground station is used, then equipment cost is reduced, but the communication temporal window is short
Solution Approach 1:
The patent merges multiple portable ground stations into a coordinated network where each station contributes to the overall communication capability. The stations work in parallel to extend the effective communication window, as different stations can communicate with satellites at different times or simultaneously. This merging approach extends the communication duration without requiring any single station to be overly complex or expensive.
Solution Approach 2:
The system uses predictive algorithms to determine optimal communication windows in advance. By calculating satellite passes and ground station availability beforehand, the system can proactively schedule communications and coordinate between multiple portable stations to maximize the utilization of available communication windows, thereby extending the effective duration without adding unnecessary complexity.
3Measurement precision
If precise stabilization and orientation are implemented, then communication quality improves, but system complexity and cost increase
Solution Approach 1:
The patent replaces complex mechanical stabilization and orientation systems with software-based solutions. Portable ground stations use algorithms to calculate and adjust antenna pointing directions based on satellite position data, eliminating the need for expensive and complex mechanical stabilization mechanisms. This substitution maintains communication quality while significantly reducing system complexity and cost.
Solution Approach 2:
The portable ground stations incorporate automated systems that self-adjust their orientation and tracking based on real-time satellite position information. The stations use software algorithms to automatically calculate optimal pointing directions and adjust their antennas without requiring complex manual control mechanisms or expensive active stabilization systems, thereby achieving precise alignment with simpler means.
4Adaptability or versatility
If conventional ground stations are used, then communication reliability is maintained, but the system lacks flexibility and portability
Solution Approach 1:
The patent transforms the static conventional ground station into a dynamic portable system that can be moved and deployed as needed. The portable ground stations use software-defined radio and programmable control systems that can adapt to different locations and communication requirements. This dynamic approach maintains reliability through automated tracking and coordination while providing the flexibility and portability that conventional fixed stations lack.
Data Source
AI summary
This system and method provides for a plurality of satellite ground stations, distributed across some geographic region, and for these regions in turn to be scalable to cover large regions, including across the Earth or in orbit with planets or other celestial bodies using a combination of low-orbit satellites, terrestrial participant devices, and cloud-based communications. The invention in its simplest form is intended to solve the short temporal window problem inherent to the scenario where a single base or ground station is trying to track and communicate with a low-end OSAT or even a cube-satellite.