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- W2393064898 abstract "Real valued discrete wavelet transform (RDWT) can be used to extract phase information of the analyzed signal because the information theoretically should be preserved in the smooth coefficients s(n) and detail coefficients w(n) of the RDWT. This paper presented three methods to separate phase information from the real value s(n) and w(n). Compared with existing complex wavelet transform-based methods, proposed methods inherited all excellence features from RDWT, that is simple, fast, and non-redundancy. Furthermore, using wavelet domain phasor defined in this paper the new methods have ability to obtain true phase angle of one frequency component of the signal at each wavelet transform scale if quadrature technique suggested in the paper is utilized to modify s(n) and/or w(n). It is impossible to have all above features for a complex wavelet transform-based method. Phase information extracted from testing signals in Matlab wavelet toolbox demonstrated that the proposed methods are correct." @default.
- W2393064898 created "2016-06-24" @default.
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- W2393064898 date "2007-01-01" @default.
- W2393064898 modified "2023-09-28" @default.
- W2393064898 title "Methods to Extract Phase Information Using Real Wavelet Transforms" @default.
- W2393064898 hasPublicationYear "2007" @default.
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