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Pokročilé algoritmy pro ekvalizaci ADSL kanálu
Mazanec, Tomáš
Digital subscriber line modems equalize response of line (channel) to fight with interferences and line dispersion which down the bit-rate of transmission. Main equalization principle is “Channel shortening” which is the base for time domain equalizers (TEQ). Many TEQ algorithms have been already proposed, mainly in theoretical sense. With growth of hardware performance, more complex methods can be applied in practice. Thus a proper simulations and fast implementations are necessary to achieve this. We developed a toolbox which implements some simple and advanced time domain equalization algorithms and simulates ADSL transmission line with reference channels (loops). This paper introduces implementation details and comparison of selected equalization algorithms.

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