jtec / jtec/prx

SP3 clock interpolation is far from RINEX clock

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Dominant language
Python
Stars
23
Forks
9
Avg merge
5d 12h
Merged PRs (30d)
4

Description

RINEX clock is close to what is computed by rtklib. But SP3-based clock is far from RINEX clock.

Possible reasons:

  • not taking into account a particular hardware bias
  • interpolation technique not adapted
  • relativistic clock effect (not accounted by RINEX, accounted by SP3) <- taken into account

A extensive analysis should be done, with comparison with other tools (rtklib).

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the discrepancy between the SP3-based clock and the RINEX clock, then compare both results with RTKLIB. Investigate the listed hardware bias, interpolation, and relativistic-effect possibilities. Done means identifying the cause of the mismatch and defining or implementing a correction, but no files or tests are named in the issue.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
data
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
25/100

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