3-probe microwave measuring instrument of vibration of mechanical objects with non-plane surface 3-probe microwave measuring instrument of vibration of mechanical objects with non-plane surface
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Date
2009
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Видавництво Національного університету "Львівська політехніка"
Abstract
Application of processing, which is specific to holographic concept with three reference signals, for complex reflection coefficient measurements by means of three-probe waveguide section is suggested. A mathematical model of diode detector on base of neural net is considered. The model provides a high level of square-law of output signal of detector and complex reflection coefficient measurements. The optimal model of neural net has structure of 1-4-1 neurons. For measurement of movement parameters estimation was done. As object of researches there was a metal concave and convex surface with various curvatures. For a decrease of a noise influence in the data, the Tikhonov’s regularization method was used. Efficiency of the method has been proved experimentally.
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Keywords
microwave reflectometry, microwave holography, neural network, 3-probe sensor
Citation
Drobakhin O. O. 3-probe microwave measuring instrument of vibration of mechanical objects with non-plane surface 3-probe microwave measuring instrument of vibration of mechanical objects with non-plane surface / O. O. Drobakhin, A. V. Doronin, V. V. Grigor’ev // Теорія та техніка антен : матеріали 7-ої Міжнародної конференції, 9–12 червня 2009 року, Львів, Україна. – Львів : Видавництво Національного університету "Львівська політехніка", 2009. – C. 277–279. – Bibliography: 6 titles.