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Abstract
Fast Calculating Method for Eliminating the Impulsive Noise
Takanori Emaru, Kazuo Tanaka and Takeshi Tsuchiya
Transactions of the Japan Society of Mechanical
Engineers, Series C,
vol.70Cno.689Cpp.62-68 (2004).
Abstract
In this paper, we propose the fast calculating method for
eliminating the impulsive noise by using the non-linear digital filter, ESDS.
In our research,
we have proposed a new technique to estimate the smoothed value
and the differential value by using sliding mode system (ESDS).
It works effectively to eliminate
the impulsive noise. The system of it is represented by
differential equations, and we have
used Runge-Kutta (RK) methods in order to solve them.
RK methods require heavy calculation, and it requires
high-performance processor in order to calculate rapidly.
Consequentially, by using the knowledge of the phase plain,
it becomes possible to reduce the calculated amount
of our proposed method. The experimental results
show the our filter with RK method needs plenty of time for
calculation, but that with the fast calculating
method needs little time.
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Takanori Emaru F
(c) Laboratory of Robotics and Dynamics, Hokkaido University