Hi,
The goal has got to be a graceful degradation of the system if pitot ice happens
We donīt know "the algorithms" used. We could imagine. There is a lot of powerful things you can do with the "signal" from the sensors before sending their data to "upper levels".
Very probably we could introduce a "band-aid" to alert when the "error" between the sensors "start to increase". And this may help in providing an early warning in dealing with the "product limitation" of current available sensors.
I am assuming the Pitotīs are not "transformed in "altimeters", etc."
immediately. The events are gradual, i guess. And we need testing to understand how the sensors "freeze" (temperature. and valid signal
) This is an "analog world" with the "richness of mother nature".
From an Engineering point of view i consider an absurd what we are facing.
We need (the aviation industry) to do ASAP R&D on the issue. And we need "analog field" Engineers with Henri Pitot like expertise. The "bitīs engineers" need "better data" for their Redundant Systems.
The system being the a/c (Systems + Crew)
I think we may say the aviation industry is facing a "product limitation" (specs, cert, design, etc.) and not a "technology barrier"