Mechanic signal analysis based on the Haar-type orthogonal matrix

Authors:
Xiuqiao Xiang;Jianzhong Zhou;Junjie Yang;Li Liu;Xueli An;Chaoshun Li
Affiliations:
College of Hydropower and Information Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;College of Hydropower and Information Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;College of Hydropower and Information Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;College of Hydropower and Information Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;College of Hydropower and Information Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;College of Hydropower and Information Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Venue:
Expert Systems with Applications: An International Journal
Year:
2009

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Abstract

Between Haar and Walsh, there exist other Haar-type orthogonal matrixes (HTOMs), which are rarely utilized in practice. In this paper, we introduce HTOMs, which have fast algorithm, to the mechanic signal analysis. Concretely speaking, the mechanic signals are transformed by various HTOMs, which can be generated easily by varying any one of two parameters in the same program, then the performance of the transform results is compared by viewing FDC as the evaluation criterion, and the most optimal HTOM is achieved, which provides guidance and reference for the HTOMs applied in the signal analysis.