Thread Subject: Where's the input for u at the Simulink Kalman Block?

Hi everybody!

I'm trying to use the Kalman Filter Block of Simulink and I can't figure out how to get my sensor signal u into that block.

Normally you use a state space model of this type
(I used continious time just to show what I mean):

x_dot = Ax + Bu
z = Cx

But the Kalman Block only offers a z-Input!?!?!

I tried to remodel my equations to define my input vector u as a state x. But that changes my dynamic system...

Is there any way to get my signal into that block? Or do I have to design my Kalman filter from scratch?

Thanks a lot!
Volker

"Volker Klink" <klinkv.NOSPAM@yahoo.de> wrote in message <go3eth$qtr$1@fred.mathworks.com>...
> Hi everybody!
>
> I'm trying to use the Kalman Filter Block of Simulink and I can't figure out how to get my sensor signal u into that block.
>
> Normally you use a state space model of this type
> (I used continious time just to show what I mean):
>
> x_dot = Ax + Bu
> z = Cx
>
> But the Kalman Block only offers a z-Input!?!?!
>
> I tried to remodel my equations to define my input vector u as a state x. But that changes my dynamic system...
>
> Is there any way to get my signal into that block? Or do I have to design my Kalman filter from scratch?
>
> Thanks a lot!
> Volker

even am facing the same problem !
miyu