Retrograde Observation Satellite for Interference Source Geolocation
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Solution Overview
Problem
Current methods for locating interfering transmission stations in satellite communications are resource-intensive, error-prone, and inefficient, particularly relying on ground-based geolocation and UAVs, which struggle with accuracy and scalability.
Innovation Solution
A satellite with a retrograde orbit, known as an observation satellite, is used to receive and process electromagnetic energy emitted from Earth, allowing for improved interference detection and geolocation by retransmitting, representing, or deriving information about the energy, which can be analyzed to determine the source of interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If ground-based geolocation is used to locate interfering transmission stations, then interference detection capability is provided, but the process becomes time-intensive and error-prone due to reliance on signal correlation between multiple satellites and ground stations
Solution Approach 1:
Instead of using ground stations to observe satellites and infer ground transmitter locations through complex signal correlation, the patent inverts the approach by deploying a satellite to directly observe and receive signals from ground-based transmitters. This satellite-based observation system eliminates the need for multi-satellite ground correlation processing, significantly reducing computation time and error propagation while maintaining location accuracy.
2Measurement precision
If helicopters or UAVs are used for geolocation, then interference sources can be located, but resource efficiency deteriorates and only one-off analyses are possible
Solution Approach 1:
The patent employs a satellite platform that serves multiple functions: it continues its primary communication or observation mission while simultaneously performing interference detection and geolocation. This multi-functional approach eliminates the need for dedicated helicopter or UAV deployments, enabling continuous monitoring and repeated analyses without additional resource consumption, thereby dramatically improving productivity and resource efficiency.
3Reliability
If ground-based geolocation systems are deployed, then interference detection is possible, but system complexity increases due to dependence on multiple satellites, ground stations, and reference signals
Solution Approach 1:
The patent extracts the essential interference detection function from the complex ground-based multi-satellite correlation system and consolidates it into a single satellite platform. By removing the dependence on multiple ground stations, adjacent satellites, and reference signal infrastructure, the system achieves reliable interference detection with significantly reduced complexity, requiring only one satellite equipped with appropriate receiving antennas and signal processing capability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances the capability to understand and manage interference in satellite communications by providing more accurate and efficient data collection, enabling effective interference detection and system optimization, reducing resource consumption, and improving the ability to locate interference sources.
Implementation Method 1
The at least one receiving antenna has a receiving pattern directed towards the earth, and is suitable for receiving electromagnetic energy in the radio frequency range as the observation satellite is orbiting relative to the surface of the earth
Data Source
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AI summary
An observation satellite is used for obtaining information about electromagnetic energy emitted from the earth. The observation satellite orbits the earth in an orbit having an inclination larger than 90° and smaller than 270°. Further, the observation satellite comprises at least one receiving antenna, the at least one receiving antenna having a receiving pattern directed towards the earth, and suitable for receiving electromagnetic energy in the radio frequency range as the observation satellite is orbiting relative to the surface of the earth. The observation satellite also comprises a transmitter configured for at least one of: (i) retransmitting the received electromagnetic energy, (ii) transmitting information representing the received electromagnetic energy, and (iii) transmitting information derived from the received electromagnetic energy. The invention also relates to systems and methods therefor.