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Module anchor

Module anchor 

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Anchor injection into the Viterbi candidate / emission lattice (T019, T026).

For each ResolvedAnchor, rewrites the candidate set and emission row at the affected GNSS index/range so that the Viterbi pass is forced to pass through the anchored netelement at the anchored intrinsic position(s).

Punctual anchors collapse position_candidates[gnss_index] to a single CandidateNetElement with emission probability 1.0.

Linear anchors restrict every GNSS step in gnss_range to candidates lying on the anchored netelement (a single forced candidate per step, intrinsic linearly interpolated between start_intrinsic and end_intrinsic).

Functionsยง

apply_anchors
Apply every anchor to position_candidates / emission_probs.