## Impulse response of raised cosine filter |
In-depth |

#### The spreading (ISI) effect of a raised cosine filter on the data pulses passing through it can be found by plotting the impulse response of the filter. The amount of ringing produced by the filter is dependent on the a chosen. The smaller the value of a, the more pronounced the ringing as the filter response approaches that of the ideal brick-wall filter (a = 0). |