Coupling of Very Low Frequency Through-the-earth Radio Signals to Elongated Conductors
Through-the-earth (TTE) radio signals (400-9000 Hz) have been observed to couple to elongated conductors present near the transmitter (Tx). This phenomenon, which greatly increases signal range, is poorly understood. Experimental and numerical data are combined to better understand the potential of...
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| Veröffentlicht in: | IEEE transactions on antennas and propagation 2017-06, Vol.65 (6), p.3146-3153 |
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| container_title | IEEE transactions on antennas and propagation |
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| creator | Ralchenko, Maxim Roper, Mike Svilans, Markus Samson, Claire |
| description | Through-the-earth (TTE) radio signals (400-9000 Hz) have been observed to couple to elongated conductors present near the transmitter (Tx). This phenomenon, which greatly increases signal range, is poorly understood. Experimental and numerical data are combined to better understand the potential of such a communication link. A finite-difference time-domain (FDTD) code is used with a thin wire approximation to model the elongated conductors, which include railway tracks and an elevator shaft. The coupling effect, attributed to currents induced in the elongated conductor, is characterized based on measurements of the three magnetic field components in the vicinity of the conductors. The ability of FDTD to handle arbitrary material geometries makes it an effective tool not only for reconciling theoretical and experimental results, but also for predicting the viability of TTE communication links in different settings, and to optimize the placement of the Tx and receiver. |
| doi_str_mv | 10.1109/TAP.2017.2694758 |
| format | Article |
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This phenomenon, which greatly increases signal range, is poorly understood. Experimental and numerical data are combined to better understand the potential of such a communication link. A finite-difference time-domain (FDTD) code is used with a thin wire approximation to model the elongated conductors, which include railway tracks and an elevator shaft. The coupling effect, attributed to currents induced in the elongated conductor, is characterized based on measurements of the three magnetic field components in the vicinity of the conductors. 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(IEEE) 2017</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c291t-e34d2fd0c3700d2210058da6f811435a0199ab9de8f6e7ccdb4f98e22cc061db3</citedby><cites>FETCH-LOGICAL-c291t-e34d2fd0c3700d2210058da6f811435a0199ab9de8f6e7ccdb4f98e22cc061db3</cites><orcidid>0000-0002-9941-948X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/7902134$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27903,27904,54736</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/7902134$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Ralchenko, Maxim</creatorcontrib><creatorcontrib>Roper, Mike</creatorcontrib><creatorcontrib>Svilans, Markus</creatorcontrib><creatorcontrib>Samson, Claire</creatorcontrib><title>Coupling of Very Low Frequency Through-the-earth Radio Signals to Elongated Conductors</title><title>IEEE transactions on antennas and propagation</title><addtitle>TAP</addtitle><description>Through-the-earth (TTE) radio signals (400-9000 Hz) have been observed to couple to elongated conductors present near the transmitter (Tx). This phenomenon, which greatly increases signal range, is poorly understood. Experimental and numerical data are combined to better understand the potential of such a communication link. A finite-difference time-domain (FDTD) code is used with a thin wire approximation to model the elongated conductors, which include railway tracks and an elevator shaft. The coupling effect, attributed to currents induced in the elongated conductor, is characterized based on measurements of the three magnetic field components in the vicinity of the conductors. The ability of FDTD to handle arbitrary material geometries makes it an effective tool not only for reconciling theoretical and experimental results, but also for predicting the viability of TTE communication links in different settings, and to optimize the placement of the Tx and receiver.</description><subject>Approximation</subject><subject>Conductor</subject><subject>Conductors</subject><subject>coupling</subject><subject>Couplings</subject><subject>Elongation</subject><subject>Finite difference method</subject><subject>Finite difference methods</subject><subject>Finite difference time domain method</subject><subject>finite-difference time-domain (FDTD)</subject><subject>Links</subject><subject>Low frequencies</subject><subject>Mathematical analysis</subject><subject>Mathematical models</subject><subject>Placement</subject><subject>Radio signals</subject><subject>Radio transmitters</subject><subject>Rail transportation</subject><subject>Railway tracks</subject><subject>through-the-earth (TTE) radio</subject><subject>Time domain analysis</subject><subject>very low frequency (VLF)</subject><subject>Viability</subject><subject>Wire</subject><subject>Wires</subject><issn>0018-926X</issn><issn>1558-2221</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kE1LAzEQhoMoWKt3wUvA89aZbHY3OZalrUJB0Vq8hTTJfpS6qdldpP_eLS2ehmGed3h5CLlHmCCCfFpN3yYMMJuwVPIsERdkhEkiIsYYXpIRAIpIsvTrmty07XZYueB8RNa57_e7uimpL-jahQNd-l86D-6nd4050FUVfF9WUVe5yOnQVfRd29rTj7ps9K6lnaeznW9K3TlLc9_Y3nQ-tLfkqhjO7u48x-RzPlvlz9HydfGST5eRYRK7yMXcssKCiTMAOzQFSITVaSEQeZxoQCn1RlonitRlxtgNL6RwjBkDKdpNPCaPp7_74IfGbae2vg_HZgolJBlDnomBghNlgm_b4Aq1D_W3DgeFoI721GBPHe2ps70h8nCK1M65fzyTwDDm8R89UmtG</recordid><startdate>20170601</startdate><enddate>20170601</enddate><creator>Ralchenko, Maxim</creator><creator>Roper, Mike</creator><creator>Svilans, Markus</creator><creator>Samson, Claire</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-9941-948X</orcidid></search><sort><creationdate>20170601</creationdate><title>Coupling of Very Low Frequency Through-the-earth Radio Signals to Elongated Conductors</title><author>Ralchenko, Maxim ; Roper, Mike ; Svilans, Markus ; Samson, Claire</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c291t-e34d2fd0c3700d2210058da6f811435a0199ab9de8f6e7ccdb4f98e22cc061db3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Approximation</topic><topic>Conductor</topic><topic>Conductors</topic><topic>coupling</topic><topic>Couplings</topic><topic>Elongation</topic><topic>Finite difference method</topic><topic>Finite difference methods</topic><topic>Finite difference time domain method</topic><topic>finite-difference time-domain (FDTD)</topic><topic>Links</topic><topic>Low frequencies</topic><topic>Mathematical analysis</topic><topic>Mathematical models</topic><topic>Placement</topic><topic>Radio signals</topic><topic>Radio transmitters</topic><topic>Rail transportation</topic><topic>Railway tracks</topic><topic>through-the-earth (TTE) radio</topic><topic>Time domain analysis</topic><topic>very low frequency (VLF)</topic><topic>Viability</topic><topic>Wire</topic><topic>Wires</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ralchenko, Maxim</creatorcontrib><creatorcontrib>Roper, Mike</creatorcontrib><creatorcontrib>Svilans, Markus</creatorcontrib><creatorcontrib>Samson, Claire</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>IEEE transactions on antennas and propagation</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Ralchenko, Maxim</au><au>Roper, Mike</au><au>Svilans, Markus</au><au>Samson, Claire</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Coupling of Very Low Frequency Through-the-earth Radio Signals to Elongated Conductors</atitle><jtitle>IEEE transactions on antennas and propagation</jtitle><stitle>TAP</stitle><date>2017-06-01</date><risdate>2017</risdate><volume>65</volume><issue>6</issue><spage>3146</spage><epage>3153</epage><pages>3146-3153</pages><issn>0018-926X</issn><eissn>1558-2221</eissn><coden>IETPAK</coden><abstract>Through-the-earth (TTE) radio signals (400-9000 Hz) have been observed to couple to elongated conductors present near the transmitter (Tx). This phenomenon, which greatly increases signal range, is poorly understood. Experimental and numerical data are combined to better understand the potential of such a communication link. A finite-difference time-domain (FDTD) code is used with a thin wire approximation to model the elongated conductors, which include railway tracks and an elevator shaft. The coupling effect, attributed to currents induced in the elongated conductor, is characterized based on measurements of the three magnetic field components in the vicinity of the conductors. The ability of FDTD to handle arbitrary material geometries makes it an effective tool not only for reconciling theoretical and experimental results, but also for predicting the viability of TTE communication links in different settings, and to optimize the placement of the Tx and receiver.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TAP.2017.2694758</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0002-9941-948X</orcidid></addata></record> |
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| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Approximation Conductor Conductors coupling Couplings Elongation Finite difference method Finite difference methods Finite difference time domain method finite-difference time-domain (FDTD) Links Low frequencies Mathematical analysis Mathematical models Placement Radio signals Radio transmitters Rail transportation Railway tracks through-the-earth (TTE) radio Time domain analysis very low frequency (VLF) Viability Wire Wires |
| title | Coupling of Very Low Frequency Through-the-earth Radio Signals to Elongated Conductors |
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