On Thu, 29 Oct 2009 17:03:34 +0100, Edward Jensen wrote:

> Hi.
>
> I'm trying to understand the concept of Allan variance with applications
> to gyroscope data. I have read a lot of articles in which they use the
> Allan variance to decompose the variance into different random processes
> (random walk, bias white noise and so on). I have, however, not found
> any articles where they actually explain how this is possible and how it
> works (with regards to the different slopes in the Allan plot).
>
> Can anyway point me to where this information can be obtained? Books or
> articles.
>
> Thanks in advance.
> Edward.

Go to the source? http://www.allanstime.com/AllanVariance/.
Somewhere on that site he refers to a paper he did for HP before HP
became a name for a crappy computer. It has some curves for time bases
that are pretty meaningful for what you want to know.
--
www.wescottdesign.com

Reply by Michael Plante●October 29, 20092009-10-29

>Hi.
>
>I'm trying to understand the concept of Allan variance with applications

to

>gyroscope data. I have read a lot of articles in which they use the Allan

>variance to decompose the variance into different random processes

(random

>walk, bias white noise and so on). I have, however, not found any

articles

>where they actually explain how this is possible and how it works (with
>regards to the different slopes in the Allan plot).
>
>Can anyway point me to where this information can be obtained? Books or
>articles.
>
>Thanks in advance.
>Edward.

Hi.
I'm trying to understand the concept of Allan variance with applications to
gyroscope data. I have read a lot of articles in which they use the Allan
variance to decompose the variance into different random processes (random
walk, bias white noise and so on). I have, however, not found any articles
where they actually explain how this is possible and how it works (with
regards to the different slopes in the Allan plot).
Can anyway point me to where this information can be obtained? Books or
articles.
Thanks in advance.
Edward.