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XWPL is an X based tool to examine one-dimensional real-valued signals using wavelets and wavelet packets. It has been designed to be as easy to use as possible for beginners. It is intended more as an educational and exploratory tool than as a numerical analysis program, even though it uses fast, optimized wavelet and wavelet packet transforms. PR: ports/5312 Submitted by: giffunip@asme.org
14 lines
765 B
Plaintext
14 lines
765 B
Plaintext
XWPL is an X based tool to examine one-dimensional real-valued signals using
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wavelets and wavelet packets. It has been designed to be as easy to use as
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possible for beginners. It is intended more as an educational and exploratory
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tool than as a numerical analysis program, even though it uses fast, optimized
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wavelet and wavelet packet transforms.
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In short, wavelets are a way to analyze a signal using base functions which
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are localized both in time (as diracs, but unlike sine waves), and in
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frequency (as sine waves, but unlike diracs). They can be used for efficient
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numerical algorithms and many DSP or compression applications.
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The mathematical theory behind wavelets (and other related transforms) is
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given in the appendix of the XWPL reference manual.
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