An improved envelope algorithm for eliminating undershoots

Authors:
Lijun Yang;Zhihua Yang;Lihua Yang;Ping Zhang
Affiliations:
Guangdong Province Key Laboratory of Computational Science, School of Mathematics and Computational Science, Sun Yat-sen University, Guangzhou, 510275, China and College of Mathematics and Informa ...;Information Science School, Guangdong University of Business Studies, China;Guangdong Province Key Laboratory of Computational Science, School of Mathematics and Computational Science, Sun Yat-sen University, Guangzhou, 510275, China;Department of Mathematics and Computer Science, Alcorn State University, USA
Venue:
Digital Signal Processing
Year:
2013

Citing 3
Cited 0

A method to eliminate riding waves appearing in the empirical AM/FM demodulation

Digital Signal Processing
Vakman's analysis in L2()

International Journal of Computer Mathematics
On the analytic signal, the Teager-Kaiser energy algorithm, andother methods for defining amplitude and frequency

IEEE Transactions on Signal Processing

Quantified Score

Hi-index	0.00

Visualization

Abstract

According to the drawbacks of current envelope algorithms, we present an improved envelope algorithm based on cubic spline and monotone piecewise cubic polynomial interpolations. The new envelope can eliminate the undershoots and meanwhile keep the smoothness property. In addition, we show that the developed method is valid when it is applied to the Empirical Mode Decomposition for non-stationary signal processing.