| Summary: | 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.
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