Fast and Accurate Generalized Harmonic Analysis Using Newton's Method
説明
A fast and accurate method for Generalized Harmonic Analysis (GHA) is proposed. The proposed method estimates the parameters of a sinusoid and subtracts it from a target signal one by one. The frequency of the sinusoid is estimated around a peak of Fourier spectrum using Newton's method, which is much faster than search methods. The amplitude and the phase are estimated to minimize the squared sum of the residue after extraction of estimated sinusoids from the target signal. A method to improve the accuracy of sinudoidal parameters using multi-dimensional Newton's method is also proposed. This method is applied to the extracted sinusoidal parameters and minimizes the partial derivative vector of the squared error. Audio signals are analyzed by the proposed methods, which confirms the accuracy compared to the previous method.
収録刊行物
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- Proceedings : APSIPA ASC 2009 : Asia-Pacific Signal and Information Processing Association, 2009 Annual Summit and Conference
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Proceedings : APSIPA ASC 2009 : Asia-Pacific Signal and Information Processing Association, 2009 Annual Summit and Conference 866-875, 2009-10-04
Asia-Pacific Signal and Information Processing Association, 2009 Annual Summit and Conference, International Organizing Committee
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詳細情報 詳細情報について
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- CRID
- 1050001202961357952
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- NII論文ID
- 120006660711
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- HANDLE
- 2115/39825
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- 本文言語コード
- en
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- 資料種別
- conference paper
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- データソース種別
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- IRDB
- CiNii Articles