Publications de Zhaoyang Wang | EPFL Graph Search

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The time-reversal invariance is readily described and universally embodied in most laws of nature, either in a strict or in a soft sense. Based on this underlying physical principle, time-reversal theory has been theoretically and experimentally studied in ...

To overcome the multipath interference in locating transient electromagnetic (EM) radiation sources in an indoor environment, we propose a criterion that calculates the correlation between back-propagated signals from observation points, to be used in EM t ...

A closed time-reversal (TR) cavity has been considered a purely theoretical concept whose experimental realization was assumed to be impossible. In this article, we demonstrate that it is, in fact, possible to realize a closed TR cavity using a network of ...

Recently, a closed time-reversal cavity for electromagnetic waves was demonstrated and experimentally realized using a network of transmission lines. This paper presents an analysis in the frequency domain of the wave propagation characteristics that perta ...

This paper presents a rigorous assessment of natural frequencies associated with fault-originated travelling waves in power networks, factoring in the presence of multiple junctions and branches. The proposed assessment exploits the Baum-Liu-Tesche (BLT) e ...

We present an alternative method based on the time-reversal process to locate faults in transmission line networks. The proposed procedure considers different media for the forward and the backward propagation phases. Specifically, the transverse branch re ...

By using the electromagnetic time reversal (EMTR) theory, the paper studies its properties in order to derive a new fault location method to be used in power networks. It is shown that, in the reversed-time stage, the current signal observed at the true fa ...

Electromagnetic time reversal (EMTR) has emerged as a promising technique to locate disturbances in power grids, thanks to its location accuracy and robustness against parameters uncertainties. Furthermore, in a reflective medium, like the one of a power n ...

This paper presents an application of the Electro-magnetic Time Reversal (EMTR) in changing media to identify the fault location along a single-conductor transmission line. It is shown that the time-reversed quantities exhibit a property, called Mirrored M ...

Electromagnetic time reversal (EMTR)-based methods have been applied to the problem of fault location in power networks since 2012. Over the past decade, considerable theoretical investigations have led to a continuous improvement of the EMTR method in ter ...

In this paper, for the first time, an experimental proof of concept for utilising time reversal (TR) in the acoustic regime to localise partial discharge (PD) sources was presented using a single sensor. To achieve this, an experimental setup comprising a ...

The existing Electromagnetic Time Reversal (EMTR)-based fault location methods generally leverage the features of the signals simulated in the EMTR reversed-time stage (relative to the direct-time stage wherein a fault occurs and its originated transient s ...

The localization of electromagnetic interference (EMI) sources is of high importance in electromagnetic compatibility applications. Recently, a novel localization technique based on the time-reversal cavity (TRC) concept was proposed using only one sensor, ...

Zhaoyang Wang

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Electromagnetic Time Reversal: Theory, Application to Fault Location in Power Networks and Experimental Validation

A Correlation-Based Electromagnetic Time Reversal Technique to Locate Indoor Transient Radiation Sources

A Closed Time-Reversal Cavity for Electromagnetic Waves in Transmission Line Networks

A Frequency-Domain Analysis of a Time-Reversal Cavity for Electromagnetic Waves in Transmission Line Networks

Rigorous Assessment of Natural Frequencies of Fault-Originated Travelling Waves

An Alternative Method for Locating Faults in Transmission Line Networks Based on Time Reversal

Electromagnetic Time Reversal Applied to Fault Location: On the Properties of Back-Injected Signals

A Full-Scale Experimental Validation of Electromagnetic Time Reversal Applied to Locate Disturbances in Overhead Power Distribution Lines

Using Electromagnetic Time Reversal to Locate Faults in Transmission Lines: Definition and Application of the Mirrored Minimum Energy Property

Filectromagnetic Time Reversal Applied to Fault Location: On the Properties of Back-Injected Signals

A review of time reversal-based methods applied to fault location in power networks

An experimental proof of concept of time‐reversal single‐sensor acoustic source localisation: Application to partial discharges

Electromagnetic Time Reversal Similarity Characteristics and its Application to Locating Faults in Power Networks

Locating Lightning Using Electromagnetic Time Reversal: Application of the Minimum Entropy Criterion

Using Electromagnetic Time Reversal Similarity Metric to Locate Lightning-Originated Flashovers on Overhead Transmission Lines

Single-Sensor EMI Source Localization Using Time Reversal: An Experimental Validation

Study of the electromagnetic protection of infrastructures with alternative shielding strategies

A Full-Scale Experimental Test of Electromagnetic Time Reversal Applied to Locate Faults in Power Networks

Time Reversal Focusing Property in Mismatched Media

Effect of Penetrating Conductors on Shielding Effectiveness of Metallic Enclosures