GNSS Corrections Generator for Legacy Hardware Compatibility
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Solution Overview
Problem
Current satellite positioning systems face challenges in efficiently interfacing different hardware generations and accommodating new carrier frequencies without requiring obsolete hardware to be replaced, and they struggle with maintaining accurate GNSS corrections across varying frequencies.
Innovation Solution
The system and method involve receiving satellite observations at a first frequency and using a corrections generator to convert them into GNSS corrections at a second frequency, allowing for high-accuracy positioning without drifting over time, and reducing computational requirements by using a single estimator for frequency conversions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If satellite observations are received at multiple frequencies using separate estimators, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple frequency estimators into a single estimator that processes observations at both first and second frequencies simultaneously. This unified estimator generates corrections for both frequencies, reducing the number of separate processing chains while maintaining the precision benefits of multi-frequency observations.
Solution Approach 2:
The single estimator is designed to perform multiple functions by generating corrections for both first and second frequencies from the same processing core. This multi-functional approach allows one estimator to replace what would traditionally require separate estimators for each frequency, reducing overall system complexity.
2Adaptability or versatility
If legacy hardware is used with new carrier frequencies, then adaptability is improved, but measurement precision deteriorates
Solution Approach 1:
The system uses an intermediary frequency conversion approach where corrections generated at one frequency are transformed to another frequency. This intermediary process allows legacy hardware receiving at traditional frequencies to benefit from new frequency observations, bridging the gap between old hardware capabilities and new frequency standards.
Solution Approach 2:
The patent applies parameter transformation by converting corrections from one frequency domain to another using established radio physics relationships. This parameter change allows the system to maintain precision by mathematically transforming the correction data to match the hardware's operating frequency, regardless of which frequency the hardware originally received.
Data Source
AI summary
A system can include (and/or receive data from) one or more data sources (e.g., satellites, reference stations, etc.), a computing system (e.g., a corrections generator thereof), a GNSS receiver, one or more sensors, and/or any suitable component(s). A method can include receiving satellite observations at a first signal frequency, determining GNSS corrections for a second signal frequency, determining a GNSS receiver position based on the GNSS corrections, and/or any suitable step(s).