As noted in https://github.com/theori-io/nrsc5/issues/312#issuecomment-1624536654, the has_fixed function prevents data from being processed unless the PCI bits match one of the expected values exactly. When signal quality is poor, bits may be corrupted, disabling data decoding.
A couple possible solutions:
Use fuzzy matching to determine the most likely PCI value.
In the event of bit errors, assume that the PCI value is equal to the value seen in previous L2 PDUs.
As noted in https://github.com/theori-io/nrsc5/issues/312#issuecomment-1624536654, the
has_fixedfunction prevents data from being processed unless the PCI bits match one of the expected values exactly. When signal quality is poor, bits may be corrupted, disabling data decoding.A couple possible solutions: