Howtosignalprocessing
- What do you understand by inter symbol interference ISI?
- What is meant by inter symbol interference ISI )? How does ISI occur in digital transmission?
- What is equalization in signal processing?
- How ISI can be minimized using equalization process?
What do you understand by inter symbol interference ISI?
Intersymbol interference (ISI) is a phenomenon in which the energy of a symbol spills over into succeeding symbols causing interference. Tight filtering at the transmitter and receiver and/or channel distortion can cause the waveform that represents a symbol to spread out into succeeding symbol periods.
What is meant by inter symbol interference ISI )? How does ISI occur in digital transmission?
Intersymbol interference (ISI) occurs when a pulse spreads out in such a way that it interferes with adjacent at the sample instant.
What is equalization in signal processing?
In telecommunication, equalization is the reversal of distortion incurred by a signal transmitted through a channel. Equalizers are used to render the frequency response—for instance of a telephone line—flat from end-to-end.
How ISI can be minimized using equalization process?
One feature of the present invention is an equalization technique to reduce intersymbol interference. For this technique, intersymbol interference may be reduced by feedforward filtering and adjusting the input to the feedforward filter with decision symbol based feedback.
