Software and hardware system of multi-frequency oblique sounding the ionosphere
Abstract
Background. The ionosphere was and will be the main channel for the propagation of radio waves of various bands (from extremely low to super-high frequencies). A feature of this channel is the dependence of its parameters on the state of space weather. Space weather is formed primarily by processes on the Sun and by processes on Earth (to a lesser extent). High-energy processes of man-made origin can also make a certain contribution to the state of space weather. Means of oblique sounding (OS) have significant opportunities for research in the field of geospace radiophysics, study of the channel of propagation of radio waves and dynamic processes in the geospace. In this case, both own radio transmitting devices and a network of broadcasting stations can be used. With the help of OS, it is possible to cover significant regions of the globe (up to global ones), and thereby study the dynamic processes in the geospace over these regions.
The purpose of this work is to briefly describe the multi-frequency multiple-path radio system of the OS ionosphere and to illustrate its performance using the example of studying dynamic processes in the geospace.
Techniques and Methodology. A coherent multi-frequency multiple-path oblique sounding radio system of the ionosphere is described. It is intended for radiophysical monitoring of dynamic processes in the geospace caused by variations in space weather, the impact on the ionosphere of high-energy sources of space and terrestrial origin. The complex is capable of receiving radio signals in the low-frequency (LF) and high-frequency (HF) ranges. Original software has been developed, depending on the range of tasks to be solved. The number of radio paths and their orientation depend on the specifics of the tasks being solved. The operation of the complex is based on measurements of the Doppler shift of frequency and amplitude or phase and amplitude of the signal. The autoregressive algorithm provides a Doppler frequency resolution of up to 0.02 Hz and a time resolution of 1 min. After obtaining the time dependences of the Doppler spectra, phases and amplitudes for various radio propagation paths, further processing of the time series is performed.
Results. At V. N. Karazin Kharkiv National University, a multi-frequency multi-path radio engineering complex for oblique sounding of the ionosphere has been developed and is operating, designed for radiophysical monitoring of dynamic processes in the geospace caused by variations in space weather, the impact on the ionosphere of high-energy sources of space and terrestrial origin.
Conclusions. The successful functioning of the complex is demonstrated by the example of studying the dynamic processes in the geospace caused by the action of various sources of energy release.
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References
Chernogor LF, Domnin IF. Physics of geospace storms: Monograph. Kharkiv: V. N. Karazin Kharkiv National University, Institute of Ionosphere NAS and MES of Ukraine; 2014. 408 p. (Russian).
Chernogor LF. Physics of Geospace Storms. Space Science and Technology. 2021;27(1(128)):3-77. (Ukrainian).
Afraimovich EL, Perevalova NP. GPS-monitoring of the Earth upper atmosphere. Irkutsk: Solar–Terrestrial Physics Institute SD RAS: SI SC RRS ESSC SD RAMS; 2006. 479 p. (Russian).
Yasyukevich YuV, Edemskiy IK, Perevalova NP, Polyakova AS. Ionosphere Response on Helio- and Geophysical Disturbances according to GPS Data. Solar–Terrestrial Physics Series. Irkutsk: Irkutsk State University Publ., 2013. p. 259. (Russian).
Pulyaev V. A., Dzyubanov D. A., Domnin I. F. Determination of the ionospheric parameters using the incoherent scattering technique: Monograph. Kharkiv: NTU “KhPI”, 2011. 240 p. (in Russian).
Reinisch BW, Galkin IA, Khmyrov GM, Kozlov AV, Bibl K, Lisysyan IA, et al. New Digisonde for research and monitoring applications. Radio Science. 2009 Feb 19;44(1):1-15. https://doi.org/10.1029/2008RS004115
Reinisch BW, Galkin IA. Global Ionospheric Radio Observatory (GIRO). Earth, Planets and Space. 2011 Jun 14;63(4):377-381. https://doi.org/10.5047/eps.2011.03.001
Verhulst T, Altadill D, Mielich J, Reinisch B, Galkin I, Mouzakis A, Belehaki A, Burešová D, Stankov S, Blanch E, Kouba D. Vertical and oblique HF sounding with a network of synchronised ionosondes. Advances in Space Research. 2017 Oct 15;60(8):1644-1656. https://doi.org/10.1016/j.asr.2017.06.033
Zalizovski AV, Kashcheyev AS, Kashcheyev SB, Koloskov AV, Lisachenko VN, Paznukhov VV, Pikulik II, Sopin AA, Yampolski YuM. A prototype of a portable coherent ionosonde mode. Space Science and Technology. 2018;24(3)(112):10-22. https://doi.org/10.15407/knit2018.03.010 (Russian).
Ivanov VA, Kurkin VI, Nosov VE, Uryadov VP, Shumaev VV. Chirp Ionosonde and its Application in the Ionospheric Research. Radiophysics and Quantum Electronics. 2003 Nov;46(11):821-851. https://doi.org/10.1023/B:RAQE.0000028576.51983.9c
Galushko VG, Kascheev AS, Paznukhov VV, Yampolski YM, Reinisch BW. Frequency-and-angular sounding of traveling ionospheric disturbances in the model of three-dimensional electron density waves. Radio Science. 2008;43(4):1-10. https://doi.org/10.1029/2007RS003735
Pietrella M, Perrone L, Fontana G, Romano V, Malagnini A, Tutone G, Zolesi B, Cander LjR, Belehaki A, Tsagouri I, Kouris SS, Vallianatos F, Makris J, Angling M. Oblique-incidence ionospheric soundings over Central Europe and their application for testing now casting and long term prediction models. Advances in Space Research. 2009 Jun 02;43(11):1611-1620. https://doi.org/10.1016/j.asr.2008.01.022
Mlynarczyk J, Koperski P, Kulak A. Multiple-site investigation of the properties of an HF radio channel and the ionosphere using Digital Radio Mondiale broadcasting. Advances in Space Research. 2012 Jan 01;49(1):83-88. https://doi.org/10.1016/j.asr.2011.09.031
Paznukhov VV, Galushko VG, Reinisch BW. Digisonde observation of TIDs with frequency and angular sounding technique. Advances in Space Research. 2012;49(4):700-710. https://doi.org/10.1016/j.asr.2011.11.012
Vertogradov GG, Uryadov VP, Vertogradova EG, Vertogradov VG, Kubatko SV. Chirp ionosonde-radiodirection finder as a new tool for studying the ionosphere and radio-wave propagation. Radiophysics and Quantum Electronics. 2013 Nov 14;56(5):259-275. https://doi.org/10.1007/s11141-013-9431-3
Shi SZ, Zhao ZY, Liu JN, Liu Y, Chen G, Li T, Yao M. Experimental demonstration for ionospheric sensing and aircraft detection with a HF sky-wave-multistatic radar. IEEE Trans. Geosci. Remote Sens. 2014 Jul;11(7):1270-1274. https://doi.org/10.1109/LGRS.2013.2291831
Shi SZ, Chen G, Yang GB, Li T, Zhao ZY, Liu JN. Wuhan ionospheric oblique-incidence sounding system and its new application in localization of ionospheric irregularities. IEEE Transactions on Geoscience and Remote Sensing. 2015 Apr;53(4):2185-2194. https://doi.org/10.1109/TGRS.2014.2357443
Shi SZ, Yang GB, Zhao ZY, Liu JN. A novel ionospheric oblique-incidence sounding network consisting of the ionospheric oblique backscatter sounder and parasitic oblique-incidence sounder. IEEE Trans. Geoscience and Remote Sensing Letters. 2015 Oct;12(10):2070-2074. https://doi.org/10.1109/LGRS.2015.2447524
Heitmann J, Cervera MA, Gardiner-Garden RS, Holdsworth DA, MacKinnon AD, Reid IM, Ward BD. Observations and modeling of ionospheric disturbance signatures from an Australian network of oblique angle of arrival sounders. 32nd URSI GASS; 2017 Aug 19 – 26; Montreal, QC, Canada. pp. 1-4. https://doi.org/10.23919/URSIGASS.2017.8105329
Laštovička J, Chum J. A review of results of the international ionospheric Doppler sounder network. Advances in Space Research. 2017 Oct 15;60(8):1629-1643. https://doi.org/10.1016/j.asr.2017.01.032
Garmash KP, Gokov AM, Kostrov LS, Rozumenko VT, Tyrnov OF, Fedorenko YP, Tsymbal AM, Chernogor LF. Radio Wave Investigations and Modeling the Processes in the Ionosphere Disturbed by Sources of Various Nature. 1. Instrumentation and Processes in the Naturally Disturbed Ionosphere. Bulletin of Kharkiv State University Radio Physics and Electronics. 1998;(405):157-177. (Russian).
Garmash KP, Rozumenko VT, Tyrnov OF, Tsymbal AM, Chernogor LF. Radio Wave Investigations the Processes in the Near-Earth Plasma Disturbed by Sources of Various Nature. 1. Foreign Radio Electronics. Progress in Modern Radio Electronics. 1999;7:3-15. (Russian).
Garmash KP, Gokov AM, Kostrov LS, Rozumenko VT, Tyrnov OF, Fedorenko YP, Tsymbal AM, Chernogor LF. Radiophysical Investigations and Modeling of Ionospheric Processes Generated by Sources of Various Nature. 1. Processes in a Naturally Disturbed Ionosphere. Technical Facilities. Telecommunications and Radio Engineering. 1999;53(4-5):6-20. https://doi.org/10.1615/TelecomRadEng.v53.i4-5.20
Blagoveshchenskaya NF. Geophysical Effects of Active Impacts in Near-Earth Space. Saint-Petersberg: Gidrometeoizdat, 2001. 287 p. (Russian).
Chernogor LF, Garmash KP, Podnos VA, Rozumenko VT, Tsymbal AM, Tyrnov OF. The Upgraded Kharkiv V. N. Karazin National University Radiophysical Observatory. Sun and Geosphere.
Nov;7(2):133-139.
Chernogor LF, Garmash KP, Podnos VA, Tyrnov OF. The V. N. Karazin Kharkiv National University Radio physical Observatory – the tool for ionosphere monitoring in space experiments. Space Project “Ionosat-Micro”, Academperiodika, Kyiv, 2013:160-182. (Russian).
Guo Q, Chernogor LF, Garmash KP, Rozumenko VT, Zheng Y. Dynamical processes in the ionosphere following the moderate earthquake in Japan on 7 July 2018. Journal of Atmospheric and Solar-Terrestrial Physics. 2019 May;186:88–103. https://doi.org/10.1016/j.jastp.2019.02.003
Guo Q, Chernogor LF, Garmash KP, Rozumenko VT, Zheng Y. Radio Monitoring of Dynamic Processes in the Ionosphere Over China During the Partial Solar Eclipse of 11 August 2018. Radio Science. 2020 Feb;55(2):e2019RS006866 https://doi.org/10.1029/2019RS006866
Chernogor LF, Garmash KP, Guo Q, Luo Y, Rozumenko VT, Zheng Y. Ionospheric storm effects over the People’s Republic of China on 14 May 2019: Results from multipath multi-frequency oblique radio sounding. Advances in Space Research. 2020 Jul 15;66(2):226-242. https://doi.org/10.1016/j.asr.2020.03.037
Luo Y, Chernogor LF, Garmash KP, Guo Q, Rozumenko VT, Shulga SN, Zheng Y. Ionospheric effects of the Kamchatka meteoroid: Results from multipath oblique sounding. Journal of Atmospheric and Solar-Terrestrial Physics. 2020;207: Paper No. 105336. https://doi.org/10.1016/j.jastp.2020.105336
Chernogor LF, Garmash KP, Guo Q, Zheng Y. Effects of the Strong Ionospheric Storm of August 26, 2018: Results of Multipath Radiophysical Monitoring. Geomagnetism and Aeronomy. 2021;61(1):73-91. https://doi.org/10.1134/S001679322006002X
Chernogor LF. Ionospheric effects of the Chelyabinsk meteoroid. Geomagnetism and Aeronomy. 2015;55(3):353–368. https://doi.org/10.1134/S0016793215030044
Marple SL, Jr. Digital spectral analysis: with applications. Englewood Cliffs, N.J.: Prentice-Hall, Inc.; 1987 Jan 01. 492 p.
Chernogor LF, Garmash KP, Guo Q, Zheng Y, Podnos VA, Rozumenko VT, Tyrnov OF, Tsymbal AM. The coherent multi-frequency multipath system for radiophysical monitoring of dynamic processes in the ionosphere. Visnyk of V.N. Karazin Kharkiv National University, series “Radio Physics and Electronics”. 2018;28:88–93 (Russian).
Gossard EE, Hooke YX. Waves in the Atmosphere: Atmospheric Infrasound and Gravity Waves, Their Generation and Propagation (Developments in Atmospheric Science). Elsevier Scientific Pub. Co., 1975. 472 p.
Guo Q, Zheng Y, Chernogor LF, Garmash KP, Rozumenko VT. Ionospheric processes observed with the passive oblique-incidence HF Doppler radar. Visnyk of V.N. Karazin Kharkiv National University, series “Radio Physics and Electronics”. 2019;30:3–15. https://doi.org/10.26565/2311-0872-2019-30-01
Luo Y, Guo Q, Zheng Y, Garmash KP, Chernogor LF, Shulga SN. HF radio-wave characteristic variations over China during moderate earthquake in Japan on September 5, 2018. Visnyk of V.N. Karazin Kharkiv National University, series “Radio Physics and Electronics”. 2019;30:16–26. (Russian). https://doi.org/10.26565/2311-0872-2019-30-02
