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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/11157

Title: 以最小帶通取樣之輸入與輸出訊號鑑定三次非線性系統的新方法
A Novel Method for Identifying Cubically Nonlinear Systems Using Minimally Bandpass Sampled Input and Output Data
Authors: 曾敬翔
Contributors: 國立臺灣海洋大學:電機工程學系
Date: 2003
Issue Date: 2011-06-28T08:08:32Z
Abstract: Identification of cubically nonlinear systems with a bandpass input signal is investigated in this paper. When excited by a bandpass signal, a nonlinear system may generates an output signal which occupies multiple frequency bands. Therefore, the output signal must be bandpass sampled with caution to avoid aliasing. Namely, for a cubically nonlinear system excited by a bandpass input, the bandpass sampling frequency for the output signal needs to be at least eighteen times the bandwidth of the input signal, otherwise the output signal could be aliased. In this paper, we propose a novel method for identifying the cubically nonlinear system using the input and output data sampled at twice the bandwidth of the input signal, even though aliasing exists in the sampled output under the circumstances. The significantly lower sampling rate makes the proposed method ighly appreciated when high speed sampling is unattainable.
URI: http://ntour.ntou.edu.tw/ir/handle/987654321/11157
Appears in Collections:[電機工程學系] 研究計畫

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