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Xiaoling Wang
Guangdong University of Technology
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Published on Sep 1, 2019in Digital Signal Processing 2.79
Qing Miao (FOSU: Foshan University), Bingo Wing-Kuen Ling15
Estimated H-index: 15
(GDUT: Guangdong University of Technology),
Xiaoling Wang (GDUT: Guangdong University of Technology)
Abstract For a sparse optimization problem with an L 1 norm objective function subject to an L ∞ norm inequality constraint, this paper finds that there is a piecewise linear relationship between the L 1 norm objective functional values and the L ∞ norm constraint specifications. This piecewise linear relationship is proved mathematically. Also, computer numerical simulations on a set of signal vectors verify the validity of this result. This result can provide a guidance for system analysts to ...
Published on Feb 22, 2019in Circuits Systems and Signal Processing 1.92
Xiaoling Wang (GDUT: Guangdong University of Technology), Bingo Wing-Kuen Ling15
Estimated H-index: 15
(GDUT: Guangdong University of Technology)
Time series usually consist of an underlying trend and the irregularities. Therefore, the underlying trend extraction plays an important role in the analysis of the time series. This paper proposes a method which combines the ensemble intrinsic timescale decomposition (EITD) algorithm and the matching pursuit (MP) approach for performing the underlying trend extraction. In order to extract the underlying trend, the EITD algorithm is applied to obtain a set of components. Then, the first componen...
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