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CLAS parity tracker: fixed-rate parity reached, accuracy parity unresolved #9

@rsasaki0109

Description

@rsasaki0109

Summary

This is the tracker for the current CLAS parity work in gnssplusplus-library.

As of 2026-04-10:

  • fixed-rate parity on the reference case is achieved
    • 10/10 fixed
    • 30/30 fixed
  • accuracy parity with CLASLIB is not achieved yet
  • current best known result:
    • RMS H = 0.9466 m
    • RMS V = 3.5390 m
    • RMS 3D = 3.6634 m

Why the work is now split

The remaining gap is no longer one vague "CLAS is not done" problem.
It has been narrowed to a small number of concrete blockers, so the work should continue as separate issues instead of one long thread.

Sub-issues

Existing validation assets

The repo already has CLASLIB-answer tests and goldens covering:

  • real CLASLIB integration runs
  • helper and comparison scripts
  • OSR goldens
  • residual / fixed-epoch goldens
  • 30-epoch summary goldens

Those tests should be kept as the acceptance floor while solver work continues.

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