|Filter gain and phase distortion|
Filter gain and phase distortion: These are common elements in a communication link. Most filters are designed in the frequency domain in terms of their type (Elliptic function, Chebechev, Bessel, etc) and order. This information is linked to the filter poles and hence the frequency response. In a time domain simulator such as SystemView by Elanix the time impulse response is derived from the frequency response, and the filtering action is a convolutional operation. In a frequency domain type implementation, the data is processed in blocks, which leads to signal discontinuities at the block transitions.
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