Simulink raised cosine transmit filter

1. What is raised cosine transmit filter?
2. What does a RRC filter do?

What is raised cosine transmit filter?

Description. The Raised Cosine Transmit Filter block upsamples and filters the input signal using a normal raised cosine FIR filter or a square root raised cosine FIR filter. The block icon shows the impulse response of the filter.

What does a RRC filter do?

Using 90% power Bandwidth (BW) measurement definition showed that the RRC filtering might improve spectrum efficiency by more than 75%. Furthermore using the matching RRC filters both in the transmitter and receiver provides the improved Bit Error Rate (BER) performance.