Дисертаційна робота присвячена розв'язанню актуальної проблеми –експериментальному та теоретичному дослідженню впливу високоенергетичнихджерел природного та штучного походження на характеристики радіохвиль іатмосферно-космічні радіоканали, які використовуються засобамителекомунікації, радіолокації, радіонавігації, радіопеленгації, тощо.Метою дисертаційної роботи є дослідження фізичних процесів в атмосферіта геокосмосі, що супроводжували падіння Челябінського та Камчатськогометеороїдів, геокосмічних бур, тайфунів, землетрусів, стартів ракет, польотівкосмічних апаратів, важливих для поширення радіохвиль і функціонуваннярадіоканалів.Проведено теоретичні та багаторічні експериментальні дослідження збуреньв атмосферно-космічних радіоканалах, характеристик радіохвиль і параметріватмосфери й іоносфери, викликаних дією потужних природних і штучних джерел.Вперше отримано кількісні характеристики збурень як параметрів радіосигналів,так і атмосфери й іоносфери.Експериментальні дослідження виконані на технічній базі Радіофізичноїобсерваторії ХНУ імені В. Н. Каразіна та Харбінського інженерного університету(КНР) і радарі некогерентного розсіяння (Інститут іоносфери НАНУ і МОНУ).^UThe dissertation is concerned with solving a topical problem, the experimentaland theoretical study of the impact of high-energy sources of natural and artificialorigins on the characteristics of radio waves and on atmospheric and space radiochannels that are used in radar, radio navigation, telecommunications, direction-findingradio system, etc.The goal of the dissertation is to study the main physical processes in theatmosphere and geospace that accompanied the impact of the Chelyabinsk andKamchatka meteoroids on the environment, the influence of geospace storms, typhoons,earthquakes, launches of large rockets, and of the firing of orbital maneuveringthrusters, as well as the influence of high-power nanosecond radio emissions, which allare important for radio wave propagation and radio channel performance.The theoretical and experimental studies of disturbances in the atmospheric andspace radio channels, radio wave characteristics, as well as in the parameters of theatmosphere and the ionosphere, which arise under the action of powerful natural(earthquakes, typhoons, large meteoroids, and geospace storms) and anthropogenicsources (main engine and orbital maneuvering system engine burns), have beenconducted for many years. For the first time, numerical values for the disturbances inboth radiowave and atmospheric-ionospheric parameters have been obtained.The Sun–interplanetary–medium–magnetosphere–ionosphere–atmosphere–Earthand Earth-atmosphere-ionosphere-magnetosphere formations are found to be complexopen dynamic nonlinear stochastic systems. The basic principles of the systemsparadigm have been developed.The demonstration has been given of the Chelyabinsk celestial body entry andexplosion to cause appreciable (or large) disturbances in all geospheres.Using long-term observational data, local time and seasonal dependences of themagnitude, direction, zonal and meridional components of the wind velocity in themesosphere have been obtained. Its magnitudes have been shown likely to be 10 – 80m/s with 3 – 7 m/s error.The electron heating in the 30 – 60-km altitude range by an ultra-short pulse hasbeen established to be essential even when the pulse length  = 1 ns and power P = 1GW. The atmospheric breakdown in the 30 – 60-km altitude range begins to occur whenP min =0.3–1.3 GW and the frequency f  10 GHz.The capability of observing the dynamic processes accompanying a moderateearthquake of Richter magnitude M  5.9 has been proved to be successful.The action of the super typhoon has been shown to be accompanied byenhancements in the wave activity in the atmosphere, when wave processes aregenerated with periods of 2 to 7 min and of 12–15 to 60–150 min. The couplingoccurring in the atmosphere–upper-atmosphere–ionosphere has been confirmed to becarried by acoustic and gravity atmospheric waves. The greatest effect that the typhoon had on the ionosphere was revealed to occur when it had maximum energetics (8, 10,and especially 9 October 2019).A new classification of the ionospheric storms vs geomagnetic state has beenadvanced. The first group is comprised of strong ionospheric storms, which accompanystrong magnetic storms (K p  8). The second group is comprised of strong ionosphericstorms, which accompany minor magnetic storms. The third group is comprised ofmoderate ionospheric storms, which accompany strong magnetic storms. Naturally,moderate ionospheric storms accompany moderate magnetic storms.Experiments conducted for many years have revealed that disturbances exhibitthree groups of speeds: 0.5 – 0.7 km/s and smaller, 2 – 3 km/s, and 10 – 25 km/s. Theycorrespond to acoustic and atmospheric gravity waves, slow MHD, and gyrotropicwaves, respectively.The experimental studies used the instrumentation located at the V. N. KarazinKharkiv National University Radiophysical Observatory (MF radar, ionosonde, HFDoppler radar transmitting at vertical incidence, and fluxmeter magnetometer) and themulti-frequency multiple path HF Doppler radio system for oblique-incidence soundingof the ionosphere, which employs a software defined technology, at the HarbinEngineering University, PRC. In some cases, the incoherent scatter radar was employed(Institute for the Ionosphere of NAS and MES of Ukraine).