Research of Equalization Technology Based on Matlab

Abstract:

In the modern digital communication system, inter-symbol interference (ISI) caused by the imperfectness of the channel is a major factor that degrades the performance of communication. In order to decrease the influence of ISI and improve communication quality, people usually use equalization technology. Generally, channel response is changing over time, so the adaptive equalizer is necessary. This paper firstly introduced the theoretical foundation and realization method of the adaptive equalization system. Then discuss the LMS algorithm. Finally, the SIMULINK tool is used to build a communication system. The set of simulation results by observing the eye diagrams of the signals before and after equalization have validated the equalization effect.

• Periodical: Applied Mechanics and Materials (Volumes 513-517)
• Pages: 3786-3789
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.513-517.3786
• Online since: February 2014
• Authors: Wen Bin Wang*, Dao Yuan Liu, Yu Qin Yao
• Keywords: Equalization Technology, LM Algorithm, Multipath

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DOI: 10.1109/49.553674