Help in understanding cosine filter

1. Why use raised cosine filter?
2. How ISI can be removed by employing a raised cosine filter?
3. What is raised cosine filter in digital communication?
4. Which of the statements are the limitations of the raised cosine filters?

Why use raised cosine filter?

A typical use of raised cosine filtering is to split the filtering between transmitter and receiver. Both transmitter and receiver employ square-root raised cosine filters. The combination of transmitter and receiver filters is a raised cosine filter, which results in minimum ISI.

How ISI can be removed by employing a raised cosine filter?

Employ raised cosine filtering to reduce inter-symbol interference (ISI) that results from a nonlinear amplifier. Initialize a simulation variable for modulation order. Create square root raised cosine filter objects.

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.

Which of the statements are the limitations of the raised cosine filters?

Raised cosine filter does not satisfy Nyquist criteria.