A Wavelet Transform Based Study on the Representativeness of Preselected Frequency Points of the Insertion Loss Function in Fuzzy Performance Evaluation of Access Network Links
Journal Title: Acta Technica Jaurinensis - Year 2015, Vol 8, Issue 3
Abstract
The performance evaluation of telecommunication networks and connections is a usual problem of telecommunications service providers and network owners. The performance evaluation in our previous approach is strongly (but not exclusively) based on the insertion loss values of the wire pairs measured at certain discrete frequency points. According to experimental results, the usage of these frequencies leads to correct evaluation, however, the theoretic verification of the correctness of the placement of these points seems to be necessary. The study was carried out using wavelet analysis, comparing the insertion loss values measured at the discrete frequency points with the wavelet transformed sections of the insertion loss functions corresponding to them. In this paper, using wavelet transform, we have studied whether the previously selected characteristic frequencies represent well the frequency domain around them also rules using wavelet transformed data are compared to the rules of the method based on characteristic frequencies.
Authors and Affiliations
F. Lilik, S. Nagy, L. Kóczy
Distinction of Road Categories by Road Users
In order to create self-explaining roads, a remarkable difference should exist between road categories, whereas within a given road category the layout should be homogenous. The paper analyses, how many and which road ca...
State Feedback Controller Design of an Active Suspension System for Vehicles Using Pole Placement Technique
The paper presents a method for designing a state feedback controller of an active suspension system of a quarter car model. This is a survey based on a specific example. The designed controller of the active suspension...
Measurement and Analysis of Deformation Shapes on Corrugated Cardboard Logistical Boxes Under Static and Dynamic Compression
On the field of compression strength of packaging the researchers, studies and standards mainly focus on the short-time measurements. The derived results from these accelerated tests can be used with a large tolerance in...
Traction Energy Consumption of Electric Locomotives and Electric Multiple Units at Speed Restrictions
In this article the author reports the measurements made by traction measuring car of Railway Engineering and Metrological Service Centre (REMSC) in the research and development work “Complex investigation of reduction p...
FEM Modeling and Weight Reduction of a Solar Energy Driven Racing Car Chassis
The paper demonstrates the strength analysis of a solar energy driven racing car chassis with two different mechanical modeling, beam-bar and shell modeling. Weight reduction is also a key point in the stages of car desi...