| Summary: | 碩士 === 國立海洋大學 === 電子工程學系 === 82 === The main objective of this thesis is to develop a modularized
simulation software package for adaptive beamforming. In recent
years, the theory and technology of adaptive beamforming have
been applied extensively in many different areas such as radar,
sonar,communication systems, and geophysical exploration. As
mamy new architectures and related algorithms are being
introduced ，researchers find themselves repeating the
laborious process of writing similar software routines in order
to conduct simulations, This is largely due to the lack of well-
defined and modularized supporting software. Therefore, we
propose the implementation of representative algorithms
available for adaptive beamforming and the construction of a
simulator with menu-based user interface. The algorithms
include generalized sidelobe canceller ( GSC ), Frost,
derivative constraints, high order main beam derivative
constraints ( HOMBDC ),least mean square( LMS ), leaky LMS,
recursive least square ( RLS ) and variable step size LMS. The
goal is to provide a powerful and convenient simulation
platform for the reseachers to quickly establish the proper
beamformer for their applications. For students learning the
theory of adaptive beamforming, this package will not only help
them understand the principles, but also encourage them to
apply the theory to the solution of practical problems. For the
heighest portability possible, the software in this project is
writtern entirely in C language. The user interface is
completely independent of the main simulator. This, of course,
will ease the porting of the package to other platforms.
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