RRC filter order

1. What is filter order in signal processing?
2. What does a RRC filter do?
3. Why is root raised cosine filter used?
4. What is square root raised cosine filter?

What is filter order in signal processing?

The order of a filter also indicates the minimum number of reactive components that the filter will require. For example, a third-order filter requires at least three reactive components: one capacitor and two inductors, two capacitors and one inductor, or in the case of an active filter, three capacitors.

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.

Why is root raised cosine filter used?

Raised cosine filters are used for pulse shaping, where the signal is upsampled. Therefore, we also need to specify the upsampling factor.

What is square root raised cosine filter?

In signal processing, a root-raised-cosine filter (RRC), sometimes known as square-root-raised-cosine filter (SRRC), is frequently used as the transmit and receive filter in a digital communication system to perform matched filtering. This helps in minimizing intersymbol interference (ISI).