Multi-source RTCM data optimization processing method and system

Abstract

This invention discloses a method and system for optimizing multi-source RTCM data, specifically relating to the field of differential data service technology in satellite radio positioning systems. It addresses the risk of differential service interruption caused by existing RTK base stations relying on a single data source and transmission link. By configuring the base station to simultaneously connect to multiple data sources, including network RTK and local positioning modules, it receives RTCM data packets from each data stream in parallel and performs real-time verification. When multiple valid data packets compete, a forward-looking evaluation and optimization are performed based on the historical correlation between data packet characteristics and multi-band broadcast performance to generate the currently valid RTCM data. Finally, it broadcasts the data simultaneously through at least two wireless data transmission modules operating in at least two different frequency bands. Redundancy is constructed on both the data source and the wireless link, and combined with a cross-layer optimized intelligent optimization mechanism, significantly improving the reliability and continuity of differential data required for high-precision positioning applications such as UAV formations.

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