NDLI: Parametric model for microwave filter by using multiple hidden layer output matrix extreme learning machine

Content Provider	IET Digital Library
Author	Wu, Shengbiao Cao, Weihua
Abstract	Smart tuning of a filter depends very much on an accurate parametric model. Here, the authors develop a parametric model for a microwave filter based on an improved extreme learning machine (ELM). First, a coupling matrix is extracted from scattering parameters in undesirable states. The automatic decomposition and modular training strategy greatly reduces the network complexity. Next, by increasing the size of the output matrix of the hidden-layer, the number of hidden layer nodes can be changed. Finally, the model parameters are optimised by combining the particle swarm optimisation (PSO) algorithm and the differential evolution (DE) algorithm. The presented parametric model benefits from the information of the fusion mechanism with a hybrid optimisation algorithm and succeeds in avoiding slow convergence and premature influence on the system. It also achieves the desired training accuracy within the target time. Compared with prediction based on back-propagation (BP) neural networks and least-squares support vector machines (LS-SVMs), the proposed method can be generalised and has a better modelling accuracy.
Starting Page	1889
Ending Page	1896
Page Count	8
ISSN	17518725
Volume Number	13
e-ISSN	17518733
Issue Number	Issue 11, Sep (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/13/11
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2018.5823
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2019-05-09
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Differential Evolution Electronic Engineering Computing Evolutionary Computation Hidden Layer Node Hybrid Optimisation Knowledge Engineering Technique Learning in AI Microwave Filter Modular Training Strategy Multiple Hidden Layer Output Matrix Extreme Learning Machine Optimisation Technique Parametric Model Particle Swarm Optimisation Smart Tuning Waveguide And Microwave Transmission Line Component
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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