The identification of the industrial processes is a complex problem, especially in the case of signals denoising. The holistic approaches used for signal denoising processes are recently considered in various types of...
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作者：
ZHU, ZLDAVIES, JBFERNANDEZ, FADepartment of Electronic and Electrical Engineering
University College London WC1E 7JE U.K. On leave from the Department of Radio Electronics
Peking University Beijing 100871 People's Republic of China. Le-zhu Zhou was born in Guizhou
China in 1944. He received the B.S. degree in Physics and M.S. degree in Electronics from Peking University Beijing China in 1968 and 1981 respectively. Since 1981 he has been on the staff of the Department of Radio-Electronics of Peking University. In 1983 he was appointed as a Lecturer. In 1989 he became an Associate Professor. Since September 1991 he has been doing research as an Academic Visitor at the Department of Electronic and Electrical Engineering of University College London. He has been engaged in the electromagnetic field theory and its application. Recently his research interest has been in the computer modelling of optical and microwave structures by using edge element methods. J. Brian Davies was born in Liverpool
England in 1932. He received the B.A. degree in mathematics in 1955 from Jesus College Cambridge England. He received the M.Sc. degree in mathematics the Ph.D. degree in mathematical physics and the D.Sc. (Eng) degree in engineering in 1957 1960 and 1980 respectively from the University of London England. From 1955 to 1963 he worked at the Mullard Research Laboratories Salford Surrey England except for two years spent at University College London. In 1963 he joined the academic staff of the Department of Electrical Engineering University of Sheffield England. Since 1967 he has been on the staff at University College London where he is now Professor of Electrical Engineering. From 1971 to 1972 he was Visiting Scientist at the National Bureau of Standards Boulder CO. In 1983 he was a Visitor at the Department of Engineering Science University of Oxford England. From 1988 to 1989 he was a Visiting Professor at the University of Colorado Boulder CO. His research interests have included microwave and optical aspects of electr
The eigenmodes in electromagnetic cavities, loaded with arbitrarily shaped dielectric materials, are computed by the edge element method. The computation shows that the well known 'spurious modes' no longer ap...
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The eigenmodes in electromagnetic cavities, loaded with arbitrarily shaped dielectric materials, are computed by the edge element method. The computation shows that the well known 'spurious modes' no longer appear. Formulae are given and verified so that the number of zero eigenvalues, which come from del x H = 0, may be accurately predicted. Formulae for the order and density of the global matrices are given for a rectangular cavity regularly divided into bricks and tetrahedra, allowing an associated comparison between the contrasting edge and nodal element formulations. Comparison of the computed results with available theoretical and previously published data show the edge element approach to be a robust, accurate and effective method.
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