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Transient electromagnetic

Extrapolation of Transient Electromagnetic Response Using Approximate Prolate Series

Extrapolation of Transient Electromagnetic Response Using Approximate Prolate Series

... A transient electromagnetic response for three-dimensional conducting structures can be obtained by computational electromagnetic methods (CEM) in time or frequency ...the electromagnetic ...

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Research on Precise Damping Matching for Transient Electromagnetic Transmitter

Research on Precise Damping Matching for Transient Electromagnetic Transmitter

... Abstract. A method is introduced to precisely match the damping resistor of different transmitting coils via the output port of the transient electromagnetic transmitter. Theoretical analysis of the ...

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Adaptive Sharp Boundary Inversion for Transient Electromagnetic Data

Adaptive Sharp Boundary Inversion for Transient Electromagnetic Data

... Transient electromagnetic method (TEM) is a powerful geophysical prospecting tool for mineral, energy and groundwater exploration as well as shallow geological investigation, ...source ...

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Occam Inversion of Transient Electromagnetic Data in a Layered Medium with Azimuthal Anisotropy

Occam Inversion of Transient Electromagnetic Data in a Layered Medium with Azimuthal Anisotropy

... In order to obtain synthetic transient electromagnetic data, we design some 1D azimuthal anisotropic synthetic geologic models to test. The x-directed horizontal electric dipole sources were located at the ...

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The development and test research of a multichannel synchronous transient electromagnetic receiver

The development and test research of a multichannel synchronous transient electromagnetic receiver

... The main purpose of this paper is to introduce a receiver system for the synchronous acquisition of multiple electro- magnetic signals in transient electromagnetic prospecting to achieve multiparameter and ...

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Shielding of Electronic Systems against Transient Electromagnetic Interferences

Shielding of Electronic Systems against Transient Electromagnetic Interferences

... frequencies, electromagnetic waves couple more easily to the ...fast transient electromagnetic fields as a result of pulsed ...amplitude electromagnetic pulses have been investi- gated ...

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Improved Bucking Coil Design in Helicopter Transient Electromagnetic System

Improved Bucking Coil Design in Helicopter Transient Electromagnetic System

... helicopter transient electromagnetic system makes the dynamic range of the response signal so large that it is difficult to observe the secondary ...helicopter transient electromagnetic system ...

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Characteristic Analysis of Transient Electromagnetic Disturbance Data in Substation

Characteristic Analysis of Transient Electromagnetic Disturbance Data in Substation

... Transient electromagnetic disturbance data of switching operation has obvious random ...the transient disturbance ...For transient electromagnetic disturbance in the substation ...

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Denoising stacked autoencoders for transient electromagnetic signal denoising

Denoising stacked autoencoders for transient electromagnetic signal denoising

... Abstract. The transient electromagnetic method (TEM) is extremely important in geophysics. However, the secondary field signal (SFS) in the TEM received by coil is easily dis- turbed by random noise, sensor ...

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Input Power Factor Control of Matrix Converter Based Transmitter for Transient Electromagnetic Sounding

Input Power Factor Control of Matrix Converter Based Transmitter for Transient Electromagnetic Sounding

... In this paper, the working principle of transmitter based on three-phase to single phase matrix converter for TEM is studied. A simplified model and an equivalent circuit are established. The characteristics of ...

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Transient Electromagnetic Topology and its Experimental Validation

Transient Electromagnetic Topology and its Experimental Validation

... Abstract—Transient electromagnetic topology (TEMT) method is presented briefly first and then three typical configurations, namely, a transmission line network, a wire penetrating a cavity aperture and then ...

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Computation of transient electromagnetic fields due to switching in high voltage substations

Computation of transient electromagnetic fields due to switching in high voltage substations

... radiate transient electromagnetic fields within high- voltage ...of transient elec- tromagnetic fields due to switching within a typical high-voltage air-insulated substation (AIS) using the ...

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A New Method for Calculating Transient Electromagnetic Responses of AC/DC Power System with External Electromagnetic Pulse Interference

A New Method for Calculating Transient Electromagnetic Responses of AC/DC Power System with External Electromagnetic Pulse Interference

... the transient electromagnetic responses of each junction of the system and any position of the transmission ...for transient analysis is established, and the simple expressions make the programming ...

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Transient electromagnetic waves applied to mineral exploration

Transient electromagnetic waves applied to mineral exploration

... LEE, T, 1977, Estimat10n of Depth to Conductors by the Use of Electromagnetic Transients, Geophysical Prospectmg 25, 61-75 The transient response of a layered structure to plane wave exc[r] ...

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Transient Electromagnetic Fields in a Cavity with Dispersive Double Negative Medium

Transient Electromagnetic Fields in a Cavity with Dispersive Double Negative Medium

... sought electromagnetic fields are found in a closed form by using decomposition over cavity modes and solving in TD the differential equations for the time varying mode ...an electromagnetic system are ...

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Rapid approximate 3D inversion of transient electromagnetic data

Rapid approximate 3D inversion of transient electromagnetic data

... 154 TEM moment responses of recovered time constant model based on zero starting model with conductivity weights for vertical dyke.155 Depth weighting scheme for vertical dyke model.. 15[r] ...

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A Fast Finite Difference Delay Modeling Solution of Transient Scattering from Lossy Inhomogeneous Dielectric Objects

A Fast Finite Difference Delay Modeling Solution of Transient Scattering from Lossy Inhomogeneous Dielectric Objects

... computing transient electromagnetic scattering from lossy inhomogeneous dielectric objects is ...about electromagnetic scattering from lossy inhomogeneous dielectric objects are presented to ...

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Equivalent for Electromagnetic Transient Calculation in Power System with Multiple Transmission Line

Equivalent for Electromagnetic Transient Calculation in Power System with Multiple Transmission Line

... For a large complex system the full representation for transient electromagnetic analysis is not necessary or practicable. The main interest during the study of dy- namic phenomena in power system is ...

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Time-Domain Integral Equation Solver for Radiation from Dipole Antenna Loaded with General BI-Isotropic Objects

Time-Domain Integral Equation Solver for Radiation from Dipole Antenna Loaded with General BI-Isotropic Objects

... “Transient electromagnetic scattering from dielectric objects using the electric field integral equation with laguerre polynomials as temporal basis functions,” IEEE ...

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High Power Electromagnetic Transient Pulse in-Phase Synthesis

High Power Electromagnetic Transient Pulse in-Phase Synthesis

... about transient electromagnetic pulse transmission have been established, such as transient electromagnetic pulse slow decay theory, the array antenna beam focus theory, high efficient ...

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