[time-nuts] OT - DC-10 gyros
bg at lysator.liu.se
bg at lysator.liu.se
Thu Mar 28 12:47:32 UTC 2013
Hi Bill,
> Well, I can come up with something topical, read on. :)
[snip]
> Topical in a more abstract way, strapdown systems really are very
> interesting. They require precise integration of the rate output over
> time to derive velocity and position, and really weren't practical until
> the 70's when small enough computers existed to do the requisite
> calculations. (I worked on the nav system for the Trident missile back
> in my Draper Labs days).
Well, for the analysis of your gyro performance, time-nuts are already
equiped with one of the tools used - the Allan Variance.
http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4404126&tag=1
There is also the relation
GPS & oscillator -> GPSDO
where in the navigation field
GPS & 3x gyro + 3x accel -> GPS stabilised inertial navigation
system
--
Björn
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