웨이브릿 변환을 이용한 시간 지연 추정법Time Delay Estimation using Wavelet Transform

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A fast estimation method using wavelet transform for a time delay system is proposed. Main point of this method is to get the wavelet transform of the correlation between the input signal and delayed signal using transformed signals. But wavelet transform using Haar wavelet functions has basis with different phases and can offers a bisection method to estimate a time delay of a signal. Selective computation of the transform of correlation is performed and the computational complexity is reduced. Computational order of this method is O(N log N) and it is much love. than a simple correlation esimation when the length of signal is long.
Publisher
한국음향학회
Issue Date
2000
Language
KOR
Citation

한국음향학회 2000년도 하계학술발표대회 , v.19, no.1, pp.165 - 168

URI
http://hdl.handle.net/10203/137953
Appears in Collection
ME-Conference Papers(학술회의논문)
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