Use of equalizers in communication systems for Intersymbol Interference

1. How does equalizer reduce intersymbol interference?
2. What is the function of an equalizer communication?
3. How do you measure inter symbol interference?
4. Which technique is used to minimize ISI?

How does equalizer reduce intersymbol interference?

To counteract unwanted signal components caused by intersymbol interference, an equalizer is sometimes utilized. Equalizers typically cancel the secondary signal components or constructively combine the secondary signal components with the primary signal components to improve reconstruction of the intended symbols.

What is the function of an equalizer communication?

In digital communications, the equalizer's purpose is to reduce intersymbol interference to allow recovery of the transmit symbols. It may be a simple linear filter or a complex algorithm.

How do you measure inter symbol interference?

Countering ISI

Apply an equalizer at the receiver, that, broadly speaking, attempts to undo the effect of the channel by applying an inverse filter. Apply a sequence detector at the receiver, that attempts to estimate the sequence of transmitted symbols using the Viterbi algorithm.

Which technique is used to minimize ISI?

To reduce ISI, CH-DSSS with Code Hopping search algorithm is used. Performance of the algorithm is evaluated based on BER using a rake receiver. Computational speed is also increased by using the Beaulieu Series Method (BSM).