Characteristics of Low-Frequency Radiation Excited by the Impact of an Oscillating, High-Frequency Beam on the Ionosphere According to In Situ Measurements
— The results of experimental studies of the characteristics of low-frequency (LF) radiation excited by the impact of two frequency-shifted, unmodulated pump waves emitted by spatially separated antenna subarrays of the EISCAT high-latitude heating facility on the Earth’s ionosphere are presented. I...
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| Veröffentlicht in: | Geomagnetism and Aeronomy 2022, Vol.62 (1-2), p.116-124 |
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| container_title | Geomagnetism and Aeronomy |
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| creator | Belov, A. S. |
| description | —
The results of experimental studies of the characteristics of low-frequency (LF) radiation excited by the impact of two frequency-shifted, unmodulated pump waves emitted by spatially separated antenna subarrays of the EISCAT high-latitude heating facility on the Earth’s ionosphere are presented. In situ measurements of the characteristics of the generated LF signals have been carried out at altitudes of ∼660 km with the onboard equipment of the DEMETER microsatellite. The spatial and amplitude characteristics of LF radiation are determined. It is shown that the detected values of the electric-field strength of the excited radiation (~3 µV/m in the daytime and ~50 µV/m in the nighttime) under this generation scheme, even if the combination of impact parameters is far from optimal, are comparable to the levels of signals during heating with powerful, amplitude-modulated, high-frequency radiation, which offers the potential to significantly increase the efficiency of LF wave radiation. |
| doi_str_mv | 10.1134/S0016793222020037 |
| format | Article |
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The results of experimental studies of the characteristics of low-frequency (LF) radiation excited by the impact of two frequency-shifted, unmodulated pump waves emitted by spatially separated antenna subarrays of the EISCAT high-latitude heating facility on the Earth’s ionosphere are presented. In situ measurements of the characteristics of the generated LF signals have been carried out at altitudes of ∼660 km with the onboard equipment of the DEMETER microsatellite. The spatial and amplitude characteristics of LF radiation are determined. It is shown that the detected values of the electric-field strength of the excited radiation (~3 µV/m in the daytime and ~50 µV/m in the nighttime) under this generation scheme, even if the combination of impact parameters is far from optimal, are comparable to the levels of signals during heating with powerful, amplitude-modulated, high-frequency radiation, which offers the potential to significantly increase the efficiency of LF wave radiation.</description><identifier>ISSN: 0016-7932</identifier><identifier>EISSN: 1555-645X</identifier><identifier>EISSN: 0016-7940</identifier><identifier>DOI: 10.1134/S0016793222020037</identifier><language>eng</language><publisher>Moscow: Pleiades Publishing</publisher><subject>Amplitudes ; Earth and Environmental Science ; Earth Sciences ; Electric field strength ; Geophysics/Geodesy ; Heating ; In situ measurement ; Ionosphere ; Microsatellites ; Onboard equipment ; Radiation</subject><ispartof>Geomagnetism and Aeronomy, 2022, Vol.62 (1-2), p.116-124</ispartof><rights>Pleiades Publishing, Ltd. 2022. ISSN 0016-7932, Geomagnetism and Aeronomy, 2022, Vol. 62, Nos. 1–2, pp. 116–124. © Pleiades Publishing, Ltd., 2022. Russian Text © The Author(s), 2022, published in Geomagnetizm i Aeronomiya, 2022, Vol. 62, No. 1–2, pp. 257–266.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c1137-2074492522ced4743b17560e73f0b2fff2dc71c96438f9115cb475a914d24f293</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1134/S0016793222020037$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1134/S0016793222020037$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Belov, A. S.</creatorcontrib><title>Characteristics of Low-Frequency Radiation Excited by the Impact of an Oscillating, High-Frequency Beam on the Ionosphere According to In Situ Measurements</title><title>Geomagnetism and Aeronomy</title><addtitle>Geomagn. Aeron</addtitle><description>—
The results of experimental studies of the characteristics of low-frequency (LF) radiation excited by the impact of two frequency-shifted, unmodulated pump waves emitted by spatially separated antenna subarrays of the EISCAT high-latitude heating facility on the Earth’s ionosphere are presented. In situ measurements of the characteristics of the generated LF signals have been carried out at altitudes of ∼660 km with the onboard equipment of the DEMETER microsatellite. The spatial and amplitude characteristics of LF radiation are determined. It is shown that the detected values of the electric-field strength of the excited radiation (~3 µV/m in the daytime and ~50 µV/m in the nighttime) under this generation scheme, even if the combination of impact parameters is far from optimal, are comparable to the levels of signals during heating with powerful, amplitude-modulated, high-frequency radiation, which offers the potential to significantly increase the efficiency of LF wave radiation.</description><subject>Amplitudes</subject><subject>Earth and Environmental Science</subject><subject>Earth Sciences</subject><subject>Electric field strength</subject><subject>Geophysics/Geodesy</subject><subject>Heating</subject><subject>In situ measurement</subject><subject>Ionosphere</subject><subject>Microsatellites</subject><subject>Onboard equipment</subject><subject>Radiation</subject><issn>0016-7932</issn><issn>1555-645X</issn><issn>0016-7940</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNp1kcFKAzEQhoMoWKsP4C3g1dUkm2y6x1paW6gUrIK3JZtNuiltUpMU7bP4sqZWUBBPc5jv-2eGAeASoxuMc3o7RwgXvMwJIYgglPMj0MGMsayg7OUYdPbtbN8_BWchLBOBGMMd8DFohRcyKm9CNDJAp-HUvWUjr163ysodfBSNEdE4C4fv0kTVwHoHY6vgZL1J4l4QFs6CNKtV4uziGo7Nov2VcKfEGib_S3LWhU2rvIJ9KZ1vkgCjgxML5yZu4YMSYevVWtkYzsGJFqugLr5rFzyPhk-DcTad3U8G_Wkm0-k8I4hTWhJGiFQN5TSvMWcFUjzXqCZaa9JIjmVZ0LynS4yZrClnosS0IVSTMu-Cq0Puxru0cojV0m29TSMrUnCKSE56vUThAyW9C8ErXW28WQu_qzCq9j-o_vwgOeTghMTahfI_yf9Ln-eYiJs</recordid><startdate>2022</startdate><enddate>2022</enddate><creator>Belov, A. S.</creator><general>Pleiades Publishing</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>8FD</scope><scope>H8D</scope><scope>KL.</scope><scope>L7M</scope></search><sort><creationdate>2022</creationdate><title>Characteristics of Low-Frequency Radiation Excited by the Impact of an Oscillating, High-Frequency Beam on the Ionosphere According to In Situ Measurements</title><author>Belov, A. S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1137-2074492522ced4743b17560e73f0b2fff2dc71c96438f9115cb475a914d24f293</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Amplitudes</topic><topic>Earth and Environmental Science</topic><topic>Earth Sciences</topic><topic>Electric field strength</topic><topic>Geophysics/Geodesy</topic><topic>Heating</topic><topic>In situ measurement</topic><topic>Ionosphere</topic><topic>Microsatellites</topic><topic>Onboard equipment</topic><topic>Radiation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Belov, A. S.</creatorcontrib><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Geomagnetism and Aeronomy</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Belov, A. S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Characteristics of Low-Frequency Radiation Excited by the Impact of an Oscillating, High-Frequency Beam on the Ionosphere According to In Situ Measurements</atitle><jtitle>Geomagnetism and Aeronomy</jtitle><stitle>Geomagn. Aeron</stitle><date>2022</date><risdate>2022</risdate><volume>62</volume><issue>1-2</issue><spage>116</spage><epage>124</epage><pages>116-124</pages><issn>0016-7932</issn><eissn>1555-645X</eissn><eissn>0016-7940</eissn><abstract>—
The results of experimental studies of the characteristics of low-frequency (LF) radiation excited by the impact of two frequency-shifted, unmodulated pump waves emitted by spatially separated antenna subarrays of the EISCAT high-latitude heating facility on the Earth’s ionosphere are presented. In situ measurements of the characteristics of the generated LF signals have been carried out at altitudes of ∼660 km with the onboard equipment of the DEMETER microsatellite. The spatial and amplitude characteristics of LF radiation are determined. It is shown that the detected values of the electric-field strength of the excited radiation (~3 µV/m in the daytime and ~50 µV/m in the nighttime) under this generation scheme, even if the combination of impact parameters is far from optimal, are comparable to the levels of signals during heating with powerful, amplitude-modulated, high-frequency radiation, which offers the potential to significantly increase the efficiency of LF wave radiation.</abstract><cop>Moscow</cop><pub>Pleiades Publishing</pub><doi>10.1134/S0016793222020037</doi><tpages>9</tpages></addata></record> |
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| subjects | Amplitudes Earth and Environmental Science Earth Sciences Electric field strength Geophysics/Geodesy Heating In situ measurement Ionosphere Microsatellites Onboard equipment Radiation |
| title | Characteristics of Low-Frequency Radiation Excited by the Impact of an Oscillating, High-Frequency Beam on the Ionosphere According to In Situ Measurements |
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