I am doing some basic research on this. I have been doing hardware and software since the mid-1970s and know a bit about the micromachined silicon ones, etc, used in camera anti-shake systems etc.
What is the current state of the art, for long distance (light aircraft) navigation?
I looked into this ~ 3 years ago and the state of the art was about2-3 orders of magnitude short on long term stability issues.
If one is going to do double integration (acceleration to distance) one needs a lot of stability.
Then there is a huge gap to fibre optic gyros which are of course fine but $ 5 digits plus.
Have there been any recent developments which might allow an accuracy of say 100m of track after 100km of flight at say 200km/hr?
Thank you for any pointers.
I am a private pilot (instrument rated) and was astounded to hear, at a recent conference, one of the European regulators stating that "new silicon chips" will make low cost INS systems for light aircraft possible. This completely suprised me. I think he was dreaming, but was he?