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Unknown Filter Type

Started by larkjon January 13, 2005


Hi,

I may have inadvertly posted this twice. If so, I apologize.

I've "inherited" the following filter:

Yn = Yn-1 + C(Xn-Xn-1)^2 - C(Xn-Xn-1)(Yn-1)
Where
Yi are outputs
Xi are inputs
C is a constant
The filter performs a smoothing function. Does anyone recognize the
form of this filter?
What type is it? Any good reference material on this filter?

Thanks,
Jon




Hi Jon
I may be wrong:
It looks like it is a discrete time version of a system governed by the
following equation:

dy(t)/dx = C[(dx(t)/dt) - y(t) ], where x(t) and y(t) are functions
dependent on time and a derivative of y wrt x exists.

Again, I am stressing that I may be wrong.

Regards
arun -----Original Message-----
From: larkjon [mailto:]
Sent: Friday, January 14, 2005 3:17 AM
To:
Subject: [matlab] Unknown Filter Type

Hi,

I may have inadvertly posted this twice. If so, I apologize.

I've "inherited" the following filter:

Yn = Yn-1 + C(Xn-Xn-1)^2 - C(Xn-Xn-1)(Yn-1)
Where
Yi are outputs
Xi are inputs
C is a constant
The filter performs a smoothing function. Does anyone recognize the
form of this filter?
What type is it? Any good reference material on this filter?

Thanks,
Jon