Channel estimation and equalization based on origin analysis
Peng Wang, Zhengyang Wu, Feng Qian · Journal of Computational Methods in Sciences and Engineering · 2015
The presence of inter-symbol interference (ISI) can significantly degrade the performance of digital communication systems. Generally, an ISI channel can be modeled as a time-varying FIR filter. The ISI effect can thus be removed by inverse-filtering the distorted signal at the receiver. This pape r, however, presents a different approach, which, other than recovering the source signal directly, attempts to adapt the decision rule in accordance with the channel statistics, so as to retrieve the loss of BER performance caused by ISI.