Raised cosine filter - matlab

1. What is raised cosine filter in digital communication?
2. What is raised cosine pulse?
3. How to use Rcosdesign in Matlab?

What is raised cosine filter in digital communication?

The raised-cosine filter is a filter frequently used for pulse-shaping in digital modulation due to its ability to minimise intersymbol interference (ISI). Its name stems from the fact that the non-zero portion of the frequency spectrum of its simplest form ( ) is a cosine function, 'raised' up to sit above the.

What is raised cosine pulse?

The raised cosine pulse is one type of Nyquist-II pulse. It possesses a transfer function given by. (3.67) where β is called the roll-off factor, which takes values between 0 to 1, and β/2T is called the excess bandwidth. Figure 3.23 illustrates the raised cosine spectral characteristics.

How to use Rcosdesign in Matlab?

Generate the coefficients of the square-root raised cosine filter using the rcosdesign function. rrcFilter = rcosdesign(rolloff,span,sps); Generate 10000 data symbols using the randi function. data = randi([0 M-1],10000,1);