基于AR算法的小波技术在随机场模拟中的应用
Application of wavelet technique based on ARmethod in random field simulation
The time histories of signals in earthquake motion field and wind field were simulated with the help of AR (HTautoregression) methodTH.In view of,the deficiency if low accuracy by yes if AR method, the signals simulated were modified by wavelet decomposition as well as wavelet packet decomposition methods. The improvement measures were discussed in detail. Several examples show that the simulated spectra by the improved AR method are in good agreement with the corresponding target spectra. Furthermore, the signals modified by the wavelet packet decomposition method are of better precision than those modified by the wavelet decomposition method.
AR法 / 数值模拟 / 地震动场 / 风场 / 小波分解 / 小波包分解 {{custom_keyword}} /
AR method / numerical simulation / earthquake motion fieldTH / wind field / wavelet decomposition / wavelet packet decomposition {{custom_keyword}} /
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