Study of a signal propagation over a transmission line having a non-uniform topology

Bousaleh, Ghazi; Hassoun, Fahd; Ibrahim, T.

doi:10.1109/actea.2009.5227893

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…We present a comparison of results obtained by this method with those obtained from a simulation in the frequency domain followed by an IFFT. This second method has been validated by experiments in an antecedent study [2], [3]. The good adequacy of the results proves the validity of the method proposed in this paper.…”

Section: Resultsmentioning

confidence: 65%

Study of Current Distribution Over a Power Cable Presenting Non-Uniform Geometry Using the Partial Differential Equations Approach

Bousaleh¹,

Hassoun²,

Akoum³

2010

REPQJ

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This paper presents a theoretical study of the currents and voltages characteristics transmission over an energy cable (Power Line Transmission PLT). The geometry of line is non-uniform. The proposed approach is based on the Distributed Network model, where the lumped parameters vary as the line's geometry. Most of the numerical methods applied use a frequency approach. However, other techniques are available in the time domain that are more applicable when the perturbation is transitory or an impulse. The partial differential equations (PDE) of telegraphers with variable coefficients are used in order to model the transmission over non-uniform lines. This paper presents the adaptation and application of the FDTD method to solve the problem of transmission of an electric wave over a transmission line whose electromagnetic topology is nonuniform.As an example, the final part of the paper proposes the modeling of the transmission of a transitory wave over an electric power cable. We present an application in the case of the propagation of lightning on an energy cable composed of three twisted wires. The validation of the proposed method will be set by comparing the obtained results with those obtained from a simulation in the frequency domain followed by an IFFT.

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Section: Resultsmentioning

confidence: 65%

Study of Current Distribution Over a Power Cable Presenting Non-Uniform Geometry Using the Partial Differential Equations Approach

Bousaleh¹,

Hassoun²,

Akoum³

2010

REPQJ

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New method for analyzing the quality of a telephone network

Bousaleh

Hassoun

Jammal³

2010

Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference

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The development of new broadband services over the telephone network requires a good quality of the installation.An important parameter that verifies the quality of a telephone installation system is the symmetry of the line. A measure of the symmetry, made from the telephone exchange center, does not allow remote observation of asymmetry on the client telephone installation.To address this problem, a new method for analyzing the quality of the pair is proposed in this paper. This method consists of evaluating the symmetry of the line by a LF (low frequency) measure made from the telephone exchange side.The aim of this study is to verify the feasibility and the validity of this technique, by a theoretical approach. We have developed a simulation code based on the theory of multi-wire transmission lines, associated with a topological approach. The model and the code are validated using experimental measurements.In the following, we exploit the simulation tool to evaluate this new measurement technique.A second axis of the study was to search for a correlation between the values of LF symmetry evaluated from the telephone exchange side and the values of HF symmetry evaluated at client side.Keywords. quality of a telephone system, symmetry of the cable, multi-wire transmission lines, Defects, ADSL

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Study of a signal propagation over a transmission line having a non-uniform topology

Cited by 2 publications

References 3 publications

Study of Current Distribution Over a Power Cable Presenting Non-Uniform Geometry Using the Partial Differential Equations Approach

Study of Current Distribution Over a Power Cable Presenting Non-Uniform Geometry Using the Partial Differential Equations Approach

New method for analyzing the quality of a telephone network

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