Adaptive Blind Equalization and Interference Rejection: Algorithms and Performance Analysis

• Main Authors: Ueng ,Fang-Biau, 翁芳標
• Other Authors: Yu-Teh Su
• Format: Others
• Language: en_US
• Published: 1995
• Online Access: http://ndltd.ncl.edu.tw/handle/47349984165918461229

博士 === 國立交通大學 === 電子研究所 === 84 === Our first approach involves the second order only. More Specially, we design a filter which has the effect of self- orthogonalizing and whose structure is similar to that of the fast transversal filter. The second approach, considering both the first and the higher-order statistics. We also propose the use of three forms of infinite impulse response filters with HOC-based cost function and study their convergence properties. Our third approach emphasizes the step size. It is well known that a large step size in the transient period and a small one in the convergence period will yield small steady state error while providing fast convergence rate. Finally, we deal with a more complicated situation where, in addition to thermal noise and ISI, the transmitted direct-sequence spread spectrum signal suffers from distrubance. We provide a workable solution. It is simple to implement and is capable of removing ISI. Moever, both simulation and analysis point out that our algorithm does render better MSE and bit error probability performance.