Radio Signal Source Positioning via Multi-Path Analysis
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Solution Overview
Problem
Existing methods struggle to accurately determine the position of radio signal sources in indoor environments, particularly in complex structures like buildings and vehicles, due to multi-path signal propagation and the absence of a direct line of sight.
Innovation Solution
A computer-implemented method that processes multi-path received signals by determining properties such as angle of incidence and arrival time, filters out higher order reflections, and uses position information to accurately locate radio signal sources, even in the absence of a direct line of sight, by characterizing the environment and utilizing further signal components to reduce uncertainty.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multi-path signal components are used for positioning, then positioning can be performed without direct line-of-sight, but positioning accuracy deteriorates due to signal reflections and uncertainties
Solution Approach 1:
The patent converts harmful multi-path signal components (reflections) into beneficial information by analyzing their properties such as angle of incidence and arrival time. Instead of discarding these reflected signals as noise, the system processes them to identify reflection patterns and uses them to determine the position of the radio signal source, thereby transforming a previously harmful effect into a useful positioning mechanism.
2Measurement precision
If signal filtering is applied to eliminate higher order reflections, then positioning accuracy improves, but loss of information occurs by discarding potentially useful signal components
Solution Approach 1:
The patent applies different processing approaches to different signal components based on their specific characteristics. Rather than uniformly filtering or processing all signals, the system analyzes individual signal components' properties (arrival time, angle of incidence) and applies appropriate processing methods to each, preserving useful information while eliminating harmful reflections.
3Measurement precision
If multiple signal components are processed to reduce uncertainty, then positioning accuracy improves, but device complexity and processing time increase
Solution Approach 1:
The patent processes a selective subset of signal components rather than all available signals. By identifying and processing only the most relevant signal components (those providing the most useful positioning information), the system achieves sufficient positioning accuracy without the excessive complexity and processing time that would result from analyzing every possible signal component.
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 method enables precise determination of radio signal source positions within indoor environments, improving positioning accuracy and allowing for the control of mobile systems like driverless transport systems without requiring direct line-of-sight signals.
Implementation Method 1
receiving at least one multi-path received signal associated with the radio signal source, comprising signal components associated with different signal paths
Implementation Method 2
signal components associated with different signal paths
Data Source
AI summary
A method for processing data associated with at least one radio signal source, said method comprising: receiving at least one multi-path received signal associated with the radio signal source comprising signal components associated with different signal paths, determining at least one property of at least one of the signal components, providing position information characterizing at least one position of an apparatus receiving the at least one multi-path received signal, determining a position of the at least one radio signal source based on the at least one property of at least one of the signal components and on the position information.