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positioning

Guillaume W. Bres edited this page Feb 25, 2024 · 23 revisions

Precise Positioning (-p)

Precise positioning is one of the most major opmodes of RINEX-Cli.

RINEX-Cli combines the RINEX core library and the RTK-rs position solver to create a very efficient and powerful interface.

Post processed precise position is requested with -p.

Understand the requirements

User interested in solving (precise) positions, must comply two requirements:

  • provide the required input data (basically, form a correct context) for the desired algorithm or solving strategy. PPP has specific requirements, while SPP will work with just GNSS signals observation and orbital information (so basically one OBS and one NAV file).
  • the provided data quality must comply with the targeted accuracy. High quality data is required for PPP to truly work. Running SPP on high quality data will exhibit very performant result as well. Poor quality of data will dramatically reduce the output accuracy you can reach.

To verify the quality of your context, the -Q Quality Check opmode is there.

Single Point Positioning

So called Single Point Positioning (SPP), which is kind of poorly named, is supported by this toolbox.
We recommend becoming familiar with SPP prior moving to PPP, especially if you are new to precise positioning.

RINEX-Cli is preset to PPP by default, you can "downgrade" to SPP by combinding --spp to the -p opmode.

Precise Point Positioning

PPP is currently under development

CGGTTS

RINEX-Cli can express PVT solutions as CGGTTS files for remote clock comparison, for so called "time transfer" technique.

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