I have a single channel EEG signal and I want to denoise the signal using matlab kalman filter. Can anyone explain how and what are the parameters that i need to include ?

sys.InputName = {'u','w'};

sys.OutputName = {'yt'};

vIn = sumblk('y=yt+v');

kalmf.InputName = {'u','y'};

kalmf.OutputName = 'ye';

>> SimModel = connect(sys,vIn,kalmf,{'u','w','v'},{'yt','ye'});

Error using DynamicSystem/connect (line 283)

Input argument 1 is not a dynamic system or has some unspecified I/O names.

Answer 1

[Shreeya]

Hello

I understand that you are facing an error when using the “connect” function for interconnecting blocks in MATLAB. The “sys” input argument to the function is expected to be a dynamic system model representing your system componenets, for example, a “tf” or “pid” model object. You can refer to the documentation regarding the input arguments of this function below:

https://www.mathworks.com/help/control/ref/dynamicsystem.connect.html#mw_19ea33ea-af02-4c97-be99-4fc88bc35bc9

Hence, you need to create the sys and Kalman filters, and then provide the “InputName” and “OutputName”. The below mentioned link provides a simple example regarding creating blocks and interconnecting them using the “connect” function.

https://www.mathworks.com/help/control/ref/dynamicsystem.connect.html#mw_c39b0daf-942b-42cc-8191-60a687f3c1d9

You can also refer to the Kalman filter documentation below to create the filter object.

https://www.mathworks.com/help/control/ref/ss.kalman.html

Hope this helps!