Windowed sinc filter in matlab

1. What is windowed sinc filter?
2. How to design fir filter using window in matlab?
3. What kind of filter is sinc function?
4. How do you write sinc in Matlab?

What is windowed sinc filter?

Windowed-sinc filters are used to separate one band of frequencies from another. They are very stable, produce few surprises, and can be pushed to incredible performance levels.

How to design fir filter using window in matlab?

b = fir1(___, window ) designs the filter using the vector specified in window and any of the arguments from previous syntaxes. b = fir1(___, scaleopt ) additionally specifies whether or not the magnitude response of the filter is normalized. Note: Use fir2 for windowed filters with arbitrary frequency response.

What kind of filter is sinc function?

and its frequency response is a rectangular function. It is an "ideal" low-pass filter in the frequency sense, perfectly passing low frequencies, perfectly cutting high frequencies; and thus may be considered to be a brick-wall filter.

How do you write sinc in Matlab?

y = sinc( x ) returns an array, y , whose elements are the sinc of the elements of the input, x . The output y is the same size as x .