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Full-Text Articles in Engineering
The Application Of Wavelet-Based Least Mean Square Algorithm In Adaptive Beamforming, Shun-Hsyung Chang, Chin-Chang Chang
The Application Of Wavelet-Based Least Mean Square Algorithm In Adaptive Beamforming, Shun-Hsyung Chang, Chin-Chang Chang
Journal of Marine Science and Technology
Wavelet transform is one of methods that utilizes the dilation and contraction of prototype wavelet basis function to form a set of fully flexible windows in the time-frequency plane. It exhibits a good effect in both the analysis of high and low frequency components of signal. By applying such a transform method to traditional least-mean-square algorithm (LMS), we can obtain an orthogonally transformed signal from a time-domain input signal after imposing wavelet transform on it. In addition, we can improve the convergence speed of learning curve by passing the transformed signal through weight which is adapted with LMS. The improved …
Computerized Shortest Path Searching For Vessels, Gene Eu Jan, Ming-Bo Lin, Yung-Yuan Chen
Computerized Shortest Path Searching For Vessels, Gene Eu Jan, Ming-Bo Lin, Yung-Yuan Chen
Journal of Marine Science and Technology
The solution of "computerized shortest path searching for vessels" is presented in the paper. In the core of the method, the shortest path algorithm on the raster plane with O(N?) time was applied with dedicated database structure and searching rules. Furthermore, we can extend the method to the optimal path searching for Search and Rescue (SAR) and Vessel Traffic Management System (VTMS) by modifying the database and searching rules.