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  • 會議論文

應用遞升型小波變換於雜訊濾除及偵測之研發

A Study of Noise Filtering and Inspection Using Lifting Scheme Based Wavelet Transform

摘要


本文旨在應用遞升式小波轉換技術以作爲雜訊干擾之濾除及檢測。鑒於以小波理論爲輔之相關演算法對時變訊號均具有解析與重建的能力,故本文即擬嵌入遞升式運算架構於小波轉換過程,利用該運算技巧之低複雜度與高運算效率等特點,以俾強化雜訊干擾之消除與檢測能力。文中並將所提演算法測試於數種電力模擬訊號,且測試結果證實該方法確具可行性及實用參考價值。

並列摘要


The noise filtering and detection using the lifting scheme based wavelet transform technology is proposed in this paper. In the proposed approach, the lifting scheme is embedded into the wavelet transform procedures. Thanks to the low complexity and high computation efficiency of this scheme, the proposed method can help enhance the noise filtering and detection more effectively. This proposed approach has been tested on various power signals and the test results reveal the feasibility of the method for de-noising applications.

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