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Morlet wavelet transform has been successfully used in signal de-noising for bearing fault diagnosis. However, the existing approach has shortcomings in optimal mother wavelet parameters selection criterion and envelope signal reconstruction. This paper presents two improvements to overcome the two shortcoming of the existing approach, and proposed the reinforced Morlet wavelet transform. Two case...
In this paper, we introduce a new general-purpose Computational Electromagnetics (CEM) algorithm, called RUFD (Recursive Algorithm Frequency Domain), for solving electromagnetic radiation and scattering problems in the frequency domain. The method shares many attributes with the Finite Difference Time Domain (FDTD), though it generates the solution of Maxwell's equations in the frequency rather than...
The number of incorrect matches of SIFT keypoints will sharply increase when the SIFT-based registration algorithm is adopted for pairs of multi-spectral remote images, owing to the significant difference in the image intensity between multi-spectral images. Scale restriction criteria for keypoint matching are proposed, and experimental results demonstrate that it will greatly improve match performance.
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