How to implement 'Medfilt1' function into Simulink

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Hello everybody,
unfortunatelly I'm not finding the equivalent Simulink block of 'Medfilt1' function implemented in Matlab(R2010a).
Have you any suggestion to solve this problem?
I heard the possibility to use S-function in order to get an embedded Matlab function into Simulink, also if I don't know how I can do that.
Any advice is well accepted.
Thanks in advance.
Regards.
  2 Commenti
Yash
Yash il 30 Giu 2012
do you have the option of incorporating command windown options in it and link a M file to your mdl?
Juster
Juster il 2 Lug 2012
Sorry but I didn't understand your question? Can you please put it in another form.
Thanks

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Ryan
Ryan il 29 Giu 2012
If you have the Video and Image Processing Blockset, use the 2D median filter and change the "Neighborhood size" to 1xN or Nx1 (depending on the format of the 1D vector you're feeding in).
  5 Commenti
Ryan
Ryan il 2 Lug 2012
Modificato: Ryan il 2 Lug 2012
If you do not have the tool box then you'll probably need to use the S-Function feature you mentioned (although I have personally never used it). There are examples that come with Matlab for those that can be browsed through the Simulink UI. I don't believe Simulink offers other methods for non-linear filtering (at least not for 2009b).
You might be able to figure out a more convoluted method using the 'sort' block from the signal processing toolbox, but using the s-function will most likely be faster or at least less frustrating.
Juster
Juster il 2 Lug 2012
So I will try to open another question where someone can help me to create an S-function equivalent to medfilt1 function.
Best regards

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