Title :
Neural Network Inverse Method for Dielectric Structures by Multifrequency Signals
Author :
Drobakhin, O.O. ; Doronin, A.V.
Author_Institution :
Dept. of Radiophys., Dnepropetrovsk Nat. Univ.
Abstract :
Application of neural network ideology for layered dielectric structure inverse problem solution is under consideration. The 3-layered feed-forward with activation function as a sigmoid (S-shaped) was chosen. The real part of reflection coefficient at many frequencies is used as input signal. Levenberg-Marquardt algorithm was used for training of the network. Some results of numerical simulation for two-layered structure in presence of Gaussian additive noise are demonstrated
Keywords :
Gaussian noise; dielectric properties; feedforward neural nets; inverse problems; signal processing; 3-layered feed-forward; Gaussian additive noise; Levenberg-Marquardt algorithm; inverse problem solution; layered dielectric structure; multifrequency signals; neural network ideology; reflection coefficient; Antenna measurements; Artificial neural networks; Dielectrics; Electromagnetic measurements; Electromagnetic reflection; Frequency; Inverse problems; Neural networks; Parameter estimation; Permittivity measurement;
Conference_Titel :
Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory, Proceedings of XIth International Seminar/Workshop on
Conference_Location :
Tbilisi, Georgia
Print_ISBN :
966-02-3873-8
DOI :
10.1109/DIPED.2006.314284
