https://www.mathworks.com/help/comm/ref/raisedcosinereceivefilter.html
Raised Cosine Receive Filter - Apply matched filtering using raised cosine FIR filter - Simulink
The Raised Cosine Receive Filter block filters the input signal using a raised cosine finite impulse response (FIR) filter and optionally decimates the...
raised cosinereceivefilterapplymatched