Satellite LOS Site Selection Using Geographic Obstruction Modeling
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Solution Overview
Problem
The challenge of identifying candidate locations for installing ground/mobile terminals in remote areas to establish line-of-sight (LOS) with LEO satellites is impractical due to the need for physical surveys, which are costly and time-consuming, especially when thousands of locations need to be surveyed.
Innovation Solution
A LOS detection system that utilizes geographic databases and assumptions to determine candidate locations for ground/mobile terminals by calculating unobstructed paths between satellites and potential installation sites, considering terrain and building data, and adjusting elevation angles to ensure clear satellite signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If physical surveys are conducted to identify candidate locations for ground/mobile terminals, then accuracy of line-of-sight detection is improved, but cost and time consumption increase significantly
Solution Approach 1:
The patent creates a virtual copy of the physical environment using geographic databases (terrain data, building data) to simulate and analyze line-of-sight conditions. Instead of physically surveying each location, the system uses digital geographic models to predict LOS accuracy, thereby eliminating time-consuming physical surveys while maintaining detection precision.
2Measurement precision
If physical surveys are conducted to identify candidate locations for ground/mobile terminals, then accuracy of line-of-sight detection is improved, but cost increases significantly
Solution Approach 1:
The patent replaces the mechanical system of physical surveys (field teams, equipment deployment, manual measurements) with an automated computational system that processes geographic database data. This substitution eliminates the need for physical presence at survey locations, dramatically reducing deployment costs while maintaining or improving LOS detection accuracy through systematic data analysis.
3Reliability
If thousands of locations are surveyed to ensure adequate coverage, then network coverage quality is improved, but resource consumption increases
Solution Approach 1:
The patent performs preliminary analysis of line-of-sight conditions using geographic databases before final location selection. By pre-evaluating potential candidate locations against satellite orbits and terrain features, the system identifies promising sites that are likely to provide adequate coverage, thereby reducing the number of locations that require detailed surveying while ensuring network coverage quality.
4Measurement precision
If comprehensive geographic data analysis is performed to identify suitable locations, then suitability of candidate locations is improved, but computational complexity increases
Solution Approach 1:
The patent segments the comprehensive geographic data analysis into distinct modular components: terrain evaluation, building obstruction analysis, satellite orbit compatibility checking, and candidate location scoring. Each module processes specific aspects of location suitability independently, making the overall complex system manageable and allowing parallel processing, thereby improving location assessment precision without overwhelming computational complexity.
Data Source
AI summary
A method and system of detecting a line-of-sight (LOS) of a satellite signal, including receiving of a geographic data into a software application. The method and system including receiving of a plurality of parameters into the software application. The method and system including identifying of, based on the geographic data and the plurality of parameters, a path of the LOS between a satellite and a candidate location for a ground/mobile terminal. The method and system including selecting of the candidate location for the ground/mobile terminal as a construction location for constructing of a ground/mobile terminal.