Improved multiscale coded dispersion entropy: a novel quadratic-coded health indicator of rolling bearings
Yanxi Fan,
Rui Yuan,
Yong Lv
et al.
Abstract:Dispersion entropy (DE) is widely used to quantify the complexity of nonlinear time series. In order to improve the ability to capture fault characteristics, a novel approach called coded dispersion entropy (CDE) has been introduced in recent years. CDE aims to expand the number of possible dispersion patterns and enhance the encoding of similar dispersion patterns. However, the coding method of CDE ignores the amplitude differences between dispersion elements and average elements, resulting in the inaccurate … Show more
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