Abstract: Sampling principle and characteristics and edge effect of
orthogonal wavelet transform of signals are researched. Two
samples of signals and wavelet bases must be taken in wavelet
transform. In the second sample sampling interval or sampling
length in different frequency range will be automatically
adjusted. Wavelet transform can detect singular points. Both
ends of signals are singular points. Edge effect is not
avoidable.
Key words: Signal Sample Wavelet transform Localization Edge effect
*
This project
is supported by National Natural Science Foundation of China. Manuscript received on
December 29, 1997; revised manuscript April 22, 1998
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