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Kalman Filtering

Started by mj May 20, 2008
Hi
My final year project on Inertial navigation system using Gyro and
Acclerometer.
for filtering i calculate the bias,angular random walk and RRW variance
from Allan variance, But i dont know how to use it in Kalman filter
equation. Can anybody tell me How to write the matrix
x(k+1) = Ax(k)+ bu(k)+w(k)
y(k) = cx(k)+z(k)
i am measuring acceleration from that i have to calculate the velocity and
position 
so what is w and z for this equation,is there is any relation between
allan variance coefficient nad w and z coefficient ?

i read many paper but i didn't anything about how to find the coefficient
of w and z using allan variance

please help me
regards
Mj 


On May 20, 10:18 pm, "mj" <mahaveerjain...@yahoo.co.in> wrote:
> Hi > My final year project on Inertial navigation system using Gyro and > Acclerometer. > for filtering i calculate the bias,angular random walk and RRW variance > from Allan variance, But i dont know how to use it in Kalman filter > equation. Can anybody tell me How to write the matrix > x(k+1) = Ax(k)+ bu(k)+w(k) > y(k) = cx(k)+z(k) > i am measuring acceleration from that i have to calculate the velocity and > position > so what is w and z for this equation,is there is any relation between > allan variance coefficient nad w and z coefficient ? > > i read many paper but i didn't anything about how to find the coefficient > of w and z using allan variance > > please help me > regards > Mj
A random walk is just integrated white noise. Therefore you need the state-space equations of an integrator driven by white noise..
why worry sir..

your kind of thesis is already done at chalmers..when i was there in
chalmers

http://db.s2.chalmers.se/download/masters/master_049_2003.pdf

thanks
particlereddy