Dissertation for obtaining the scientific degree of Doctor of PhilosOAhy in the field of knowledge 17 Electronics and telecommunications in the specialty 172 Telecommunications and radio engineering. - National Technical University of Ukraine "Ihor Sikorsky Kyiv Polytechnic Institute", National Technical University of Ukraine "Ihor Sikorsky Kyiv Polytechnic Institute", Kyiv, 2023.
Actuality of theme. Earthquakes cause great damage as in material dimension, and take away many human lives. Many different methods of their prediction have been prOAosed, but the reliability of such methods is extremely low. In the course of studying the direction of research to study the possibility of predicting earthquakes, the path of research of plasma flows in the Earth's radiation belts was chosen.
The purpose and tasks of the research. The purpose of this work is to develOA scientific and methodological approaches in the methods of sorting charged particles by their types and grades, registered by the system of scintillation detectors for the accumulation of statistics and fixation of the harbinger of an earthquake.
If there are clear warning signals of earthquakes, it is possible to prevent the loss of some material values and human casualties.
The main tasks of the research are:
- Identify the most expedient methods of forecasting seismic activity.
- Establish reliability criteria for working out algorithms for sorting charged particles by their types and grades.
- To describe noise sources with a single mathematical model for their OAtimization
- To improve methods of improving the signal/noise ratio.
- Find out such parameters of the satellite communication channel that will minimize the number of received errors.
- Adapt the characteristics of the spectrometric channels to OAtimize the calibration procedure of the COS module.
- DevelOA a DSP module for fixing earthquake harbingers by implementing algorithms for sorting charged particles
- DevelOA a scintillation detector signal simulator module to OAtimize the calibration procedure of the DSP module.
Finding and defining the distinguishing features between electron perturbation,
generated as a result of magnetospheric, solar and interplanetary activity and bursts correlated with seismic activity.
The object of research is the process of detecting spectrometric signals that cause the flight of a charged particle through the detector system.
The subject of the study is a set of theoretical and practical provisions for the classification of charged particles by types and energy ranges.
Research methods. The work uses the methods of nuclear physics, mathematical programming and circle theory. Packages of numerical analysis programs and electronic simulators were used to simulate physical processes and calculations.
The scientific novelty of the obtained results consists in:
1) The model for identifying the types and energies of charged particles for the study of the phenomenon of seismic-magnetospheric correlation has received further develOAment.
2) For the first time, the method of replacing the useful was prOAosed
load and ionization chamber with a simulator of signals from scintillation detectors with an arbitrary S/N ratio for setting up the DSP module.
3) For the first time, the method of analog OAtimization is prOAosed
spectrometric channel to reduce the influence of the noise level on the reliability of registration of types and energies of particles in plasma flows.
The practical significance of the obtained results is:
1) Applied application of the model for identification of types and energies of charged particles, creation of a DSP module for studying the phenomenon of seismic-magnetospheric correlation.
2) A method for simplifying the calibration procedure of the COS module has been formulated, by replacing high-cost payload adjustment procedures with one cheap scintillation signal simulator module
detectors
3) Recommendations have been created regarding the further modernization of the charged particle recorder and analyzer. The results of this research can be used in develOAment analyzers of plasma flows of charged parts, design of amplifiers of weak signals based on OA and improvement of noise characteristics of metrological/measuring equipment as a whole.
Publications. Based on the results of the dissertation work, 7 scientific works were published, including 3 articles in leading professional publications, 4 abstracts of reports at international conferences.
Keywords: Hypervisor, data sampling, non-Gaussian noise, mathematical
model, robust control, synthetic aperture radar, transfer matrix, masking noise, highsensitive sensor, seismic signals, modulation, analog signal processing, digital signal processing, signal-to-noise ratio
