Geolocation Receiver Using Multi-Wavelength Signals and Authentication
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Solution Overview
Problem
Current satellite-based geolocation systems face inaccuracies and operational limitations in urban and indoor environments, are vulnerable to climatic conditions and signal interference, and lack robust security against fraudulent signal imitation, making them unreliable for secure transactions and precise location certification.
Innovation Solution
A method for geolocating a receiver using multiple geolocation signals on different wavelengths, incorporating additional certification signals with digital signatures, and utilizing inspection terminals to verify signal authenticity and prevent fraudulent signals, ensuring accurate and secure location determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If satellite-based geolocation systems are used, then geolocation can be provided, but accuracy deteriorates in urban and indoor environments due to signal blockage and attenuation
Solution Approach 1:
The patent divides the geolocation system into multiple independent emitters distributed throughout the environment (including terrestrial emitters like towers and buildings, as well as aerial emitters). Each emitter independently transmits geolocation signals, allowing the receiver to segment the signal reception process and use signals from multiple sources to triangulate position, thereby maintaining accuracy in environments where satellite signals are blocked.
Solution Approach 2:
The patent introduces terrestrial emitters as intermediary signal sources between the receiver and the satellite-based system. These emitters act as mediators that can provide geolocation signals in urban and indoor environments where direct satellite visibility is unavailable, bridging the gap between satellite-based and receiver-based positioning.
2Adaptability or versatility
If satellite-based geolocation systems are used, then geolocation can be provided, but reliability deteriorates due to vulnerability to climatic conditions and ionizing rays
Solution Approach 1:
The patent segments the geolocation signal sources into multiple independent emitters at different locations and heights. This distribution means that climatic conditions affecting one emitter (such as rain fade or atmospheric interference) do not necessarily affect all emitters simultaneously, providing redundancy and maintaining signal reliability through diverse signal paths.
Solution Approach 2:
The patent employs emitters with different characteristics at different locations, including terrestrial emitters on towers and buildings, and aerial emitters at various heights. Each emitter provides locally optimized signal coverage, with lower emitters penetrating through urban canyons and higher emitters providing broader coverage, thereby improving overall system reliability under varying environmental conditions.
3Adaptability or versatility
If satellite-based geolocation systems are used, then geolocation can be provided, but security deteriorates due to ease of signal imitation for fraudulent purposes
Solution Approach 1:
The patent implements preliminary authentication actions before accepting geolocation signals. Each emitter transmits authentication information that the receiver verifies before using the signal for position determination. This preliminary verification step prevents fraudulent signals from being accepted, as impostors cannot replicate the authentication protocol established by authorized emitters.
Solution Approach 2:
The system employs feedback mechanisms where the receiver continuously verifies signal authenticity against known emitter characteristics and authentication data. Any deviations indicate fraudulent signals, allowing the system to provide feedback that rejects unauthorized signals and maintains security integrity.
4Measurement precision
If multiple emitters on different wavelengths are used, then measurement precision improves, but device complexity increases
Solution Approach 1:
The patent designs the receiver to handle multiple wavelengths and emitter types through a universal signal processing architecture. The same receiver hardware and processing algorithms can accommodate signals from terrestrial emitters, aerial emitters, and satellite emitters across different frequency bands, thereby achieving high precision without proportionally increasing device complexity.
Solution Approach 2:
The patent employs parameter changes in signal processing, where the receiver dynamically adjusts processing parameters based on the wavelength and characteristics of incoming signals. By adapting processing parameters rather than requiring separate dedicated processing paths for each wavelength, the system maintains high precision while managing complexity through software-based flexibility rather than hardware multiplication.
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
The method provides a reliable, accurate, and secure geolocation solution that operates effectively in diverse environments, enhances transaction security, and reduces errors by verifying signal integrity, thereby improving the integrity of location-based transactions.
Implementation Method 1
ascertain its speed therefrom or broadcast the time by measuring the propagation times of electromagnetic waves emitted by a set of satellites in a constellation
Implementation Method 2
use satellite positioning systems to geolocate a receiver... measuring the propagation times of electromagnetic waves emitted by a set of satellites
Data Source
AI summary
A method for geolocating a receiver by measuring times of reception, by the receiver, of a plurality of geolocation signals originating from a plurality of emitters, the geolocation signals are emitted on multiple different wavelengths, at least one geolocation signal having a frequency less than 1 GHZ.