Archives For Highly optimised tolerance

The use of median value voting algorithms as part of fault tolerant design has become an almost ubiquitous design solution, especially for avionics systems. But have we really considered their suitability?

Continue Reading...

The TCAS II specification credibility window can provide us with an insight into the magnitude initial unreliable air data parameters in the AF 447 disaster.

Continue Reading...

Pitot sensor (Source: BEA)

The theory of Highly Optimised Tolerance (HOT) predicts that as technological systems evolve to become more robust to common perturbations they still remain vulnerable to rare events (Carlson, Doyle 2002) and this theory may give us an insight into the performance of modern integrated air data systems in the face of in-flight icing incidents. 

Continue Reading…