Simulation and Measurement of Through-the-Earth, Extremely Low-Frequency Signals Using Copper-Clad Steel Ground Rods

Damiano, Nicholas W.; Yan, Lincan; Whisner, Bruce; Zhou, Chenming

doi:10.1109/tia.2017.2703625

Cited by 10 publications

(6 citation statements)

References 7 publications

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“…They provide an alternative for data transmission in scenarios where traditional wireless or wired channels cannot be used because they are unavailable or ineffective. Prior research has investigated the use of media ranging from soil [1], [2] and a lifeline cable [3] in mining environments, to pipes meant for the transportation of water, gas or oil [4]- [7]. Applications include, but are not limited to, systems for communication in the post-accident scenario, structural health monitoring and tracking of the operating conditions of an industrial plant.…”

Section: Introductionmentioning

confidence: 99%

A Wireless Communication System for Urban Water Supply Networks Based on Guided Acoustic Waves

2022

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The structural complexity of real-world pipeline networks makes it difficult to derive physicsbased models of acoustic propagation. This work deals with the design of a communication system based on the propagation of acoustic waves in water-filled pipes. A method based on the experimental characterization of the communication channel is proposed. This approach is applied to an urban water distribution pipeline, and a black-box model representing its frequency response is obtained. The derived two-port model is used for the simulation of a complete communication system, comprising transmitter and receiver models, with the aim of using the water pipe as a wireless communication channel. It is shown that the choice of modulation parameters is critical in order to deal with issues such as the frequency selectivity of the channel and multipath wave propagation. A communication system is presented and the experimental results of the communicated data are provided.INDEX TERMS Acoustic wave communication, channel characterization, data transmission, underwater communication, urban water supply system.

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Section: Introductionmentioning

confidence: 99%

A Wireless Communication System for Urban Water Supply Networks Based on Guided Acoustic Waves

2022

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“…During positioning, the direction change of the positioning signal vector will lead to the non-uniqueness of the positioning results. For example, 3 Hi B in Fig. 8 may point in the opposite direction.…”

Section: Excluding the Non-uniqueness Of The Positioning Resultsmentioning

confidence: 99%

“…6. 3 Hi B is the positioning signal vector in coordinate system 3, 1, 2 i = . Next, we will implement the positioning method.…”

Section:  Andmentioning

confidence: 99%

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A High-Precision Dual-Frequency Magnetic Induction Through-the-Earth Positioning Method

2021

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To achieve the high-precision through-the-earth positioning in mine rescue, we propose a dual-frequency magnetic induction positioning method. The dual-frequency transmitter underground is a loop energized coil. The receiver on the ground is a three-axis magnetic core coil. We first carry on the algebraic transformation to the expression of the dual-frequency positioning signal, and obtain the transceiver distance function that is not affected by the layered earth conductivity. Then, through the tilt angle of the receiver and the rotation matrices, we correct the receiver tilt. By the direction of the geomagnetic field, we correct the direction deviation of the receiver. Finally, we obtain the threedimensional coordinates of the transmitter by decomposition of the transceiver distance. The analysis and simulation results are as follows. The dual-frequency positioning method eliminates the positioning error caused by the path loss of the stratified earth media. The rotation matrices correct the error caused by the receiver tilt. When the receiver is close to the top of the transmitter, the positioning error can be reduced. By configuring proper transmitter parameters, we can maintain a balance between transmitter size and rescue efficiency.INDEX TERMS high-precision, dual-frequency, Magnetic induction, positioning, through-the-earth.

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“…Experimental data are obtained with the two-grounding rod system shown in Fig. 7(a), which is commonly known as the TTE antenna [6], [26]. It is seen that the impedance of the TTE antenna is almost purely resistive and independent of frequency up to VLF.…”

Section: A Estimation Of Ground Conductivity σ Gmentioning

confidence: 99%

On the Performance of Tree-Based Antennas for SLF-VLF Signal Reception

Liao,

Killough,

Kerekes

2023

IEEE Access

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A full-wave electromagnetic simulation and experimental study is carried out to explore the effects of tree-induced dielectric loading on the receiving properties of an electrically small, earth-grounded wire monopole. It is demonstrated that by connecting the upper end of the wire to the tree trunk, the input impedance and current distribution of the monopole can be significantly transformed, leading to an enhancement in the received signal strength that becomes more noticeable as the frequency is decreased; for example, at the lowest frequency considered, it is seen that the tree-loaded antenna can increase the received voltage by over 40 dB, when compared to the case without tree loading. An application of the tree-based antenna for low-frequency power line signal monitoring is presented. Overall, simulation results for the input impedance and received signal response are in good agreement with measurement data.INDEX TERMS Electrically small antenna, full-wave analysis, industrial-scale equipment monitoring, lowfrequency radiation, method-of-moments antenna simulation, monopole antenna, power line emission, treebased antenna.

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Simulation and Measurement of Through-the-Earth, Extremely Low-Frequency Signals Using Copper-Clad Steel Ground Rods

Cited by 10 publications

References 7 publications

A Wireless Communication System for Urban Water Supply Networks Based on Guided Acoustic Waves

A Wireless Communication System for Urban Water Supply Networks Based on Guided Acoustic Waves

A High-Precision Dual-Frequency Magnetic Induction Through-the-Earth Positioning Method

On the Performance of Tree-Based Antennas for SLF-VLF Signal Reception

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