离散小波变换中的不确定性传播

Proceedings of the 20th IEEE Instrumentation Technology Conference (Cat. No.03CH37412) Pub Date : 2003-05-20 DOI:10.1109/IMTC.2003.1207993

L. Peretto, R. Sasdelli, R. Tinarelli

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引用次数: 5

摘要

基于小波变换的信号分析在许多领域得到了应用。电磁暂态检测与分类在电力系统中有着重要的应用。小波变换在测量中的应用涉及到不确定度评定问题。本文提出了离散时间小波变换中影响细节的不确定性和确定均值的近似系数的分析模型。本文还介绍和讨论了一些实验工作的结果，证明了该方法的性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Uncertainty propagation in the discrete-time wavelet transform

Signal analysis based on the wavelet transform is applied in many fields. Detection and classification of electromagnetic transients in power systems is a significant application. The use of the wavelet transform for measurement purposes involves issues of uncertainty evaluation. In this paper, an analytical model for the evaluation of the uncertainty affecting the details and the approximation coefficients determined means of the discrete-time wavelet transform is proposed. The results of some experimental work showing the performance of the method are also presented and discussed.

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来源期刊

Proceedings of the 20th IEEE Instrumentation Technology Conference (Cat. No.03CH37412)

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