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Data Analysis

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Guillaume W. Bres edited this page Aug 24, 2024 · 5 revisions

Data Analysis and Quality checks

Data analysis and Quality Check (QC) is the default mode.
rinex-cli will always synthesize a report.

In this example, a single file is loaded and no operation is requested: we analyze it

rinex-cli \
    --fp ./test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz

File Operations are the only operations that will inhibit the synthesis of a report. Yet, it is possible to perform analysis of the data you just have generated with one of those operations.

Other options

  • use -o to customize the report name. This is particularly useful when running several opmodes, checkout our tutorials
  • use -f to force report synthesis. This is particularly useful on your first iteration. Checkout our tutorials

Report customization

A session is defined by your input products.
If your input data remain constant, it is considered the same session.
You can then use several opmodes to generate new chapters that are appended to your report.

Checkout all our GNSS survey and CGGTTS survey in the tutorial serie, to see how we add PVT and CGGTTS solutions to the analysis report. This gives rinex-cli to present both PVT and CGGTTS (timing oriented) solutions, yet along all other analysis method that we have.

Similarities with teqc

We share similarities with teqc which will prove convenient
to advanced "teqc" users. Among them:

  • Quick GNSS filters (-G, -R, ...) still exist
  • Similar navigation analysis including sampling report
  • Similar signals analysis and reporting
  • Like TEQC we evaluate some markers that emphasize what the input context is compatible with and capable of, but we go beyond that with slightly finer definitions

Differences with teqc

Unlike teqc:

  • We are not limited to RINEX V2, V3. V4 RINEX is fully supported.
  • We have no means to support proprietary formats like BINEX
  • We integrate a complete position solver (similar to RTKLib) so you can kind of get the best of teqc and rtklib at once
  • We do not limit ourselves to the analysis of GPS and Glonass constellations or L1 and L2 signals. For example, other combinations will be analyzed. When working with military signals, as long as your RINEX input is correct, we support all signals in theory and you should be able to analyze your observations.
  • We have no means to detect data duplicates as of today

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