EGNOS в Україні

A research of European Geostationary Navigation Overlay Service (EGNOS) performance was conducted with a help of a satellite navigation receiver, working in the mode of receiving differential corrections. The goal of the research was to define the operation characteristics of EGNOS in central Ukraine, without a ground station. We have estimated the key system parameters, such as: accuracy, availability, continuity and integrity. Using the data recorded by our receiver and PEGASUS software to process it, this article illustrates the current state of EGNOS in Kiev. The research was conducted in static, while having the coordinates of the receiving station calculated in centimeter accuracy. The research was performed under the UKRAINE project, detailed information about the project is given under Acknowledgments header.Представлены результаты исследований работы системы EGNOS в Украине. Проанализированы точность, непрерывность, доступность, целостность данной системы и на их основе сделаны выводы о необходимости создания наземного дополнения для EGNOS в Украине.Представлені результати досліджень роботи системи EGNOS в Україні. Проаналізовані точність, неперервність, доступність, цілісність цієї системи і на їх основі зроблені висновки про необхідність створення наземного доповнення для EGNOS в Україні

Research of EGNOS reliability in Kiev

A research of EGNOS work was conducted with a help of a receiver, working in the mode of receiving differential corrections, to find if EGNOS can be used in Ukraine without building a ground stationNational Aviation University, Ukrain

Autonomous Navigation of Service Spacecrafts on Geostationary Orbit Using GNSS Signals

In this paper we consider the possibilities of navigation of spacecrafts designed to service artificial Earth satellites on the geostationary orbit and of space debris removal in the near-Earth space using the signals of Global Navigation Satellite Systems. We have formulated the methodology for estimation of the signals availability of navigation satellites on the geostationary orbit through the utilization of almanac of GPS and GLONASS. It has been demonstrated that in the case of reception of navigation signals, which are radiated by the antenna system within the limits of main lobe of the radiation pattern (RP), the availability of satellite navigation signals on the geostationary orbit is very low even if we utilize GPS and GLONASS simultaneously. We present the simulation results of the received on the geostationary orbit navigation satellites using the signals radiated in the main lobes in the range from +/-13.8 to +/-23.5° for the L1 frequency, from +/-13.8 to +/-26° for the L2/L5 frequencies and in the side lobes in the range from +/-30 to +/-60° of RP of the satellite antennas. The simulation of the navigation satellites available on the geostationary orbit is given on the 24-hour time interval. Presented results are illustrated by the calculations of number of visible satellites and by the geometric factor. DOI: 10.3103/S0735272716120049Лаборатория спутниковых технологий кафедры аэронавигационных систем Национального авиационного университет

EUROPEAN GEOSTATIONARY NAVIGATION OVERLAY SERVICE IN UKRAINE

A research of European Geostationary Navigation Overlay Service (EGNOS) performance was conducted with a help of a satellite navigation receiver, working in the mode of receiving differential corrections. The goal of the research was to define the operation characteristics of EGNOS in central Ukraine, without a ground station. We have estimated the key system parameters, such as: accuracy, availability, continuity and integrity. Using the data recorded by our receiver and PEGASUS software to process it, this article illustrates the current state of EGNOS in Kiev. The research was conducted in static, while having the coordinates of the receiving station calculated in centimeter accuracy. The research was performed under the UKRAINE project, detailed information about the project is given under Acknowledgments headerNational Aviation Universit

Initial analysis of space de-bris hazard

Space debris is currently an extremely serious problem for any operations in space, including navigation, communications, surveillance and researches. The constantly increasing amount of debris in space near Earth may render it unavailable for generations. The problem of space debris is analyze

Simmulation of navigation satellites availability in the near-earth space

The problem of GNSS performances in the near-Earth space is considered. The main factor that limits GNSS applying in space is district visibility of navigation satellites. The availability of GNSS satellites required number were checked by using model of satellites motion and data about height of user locationNational Aviation Universit

Concept of group debris cleaning using unmanned servicing spacecraft

A concept of an approach to the debris cleaning using a group of servicing spacecraft to provide reliable navigation and efficiency. Some of the results of mathematical modelling are providedNational Aviation University, Ukrain

Model for navigation satellite availability on various orbits analysis

While facing different tasks in space, the necessity to create a reliable way of navigation in space is required. The model is developed to analyze the availability of the navigation satellites in spaceNational Aviation Universit

Тестирование модели для оценки доступности спутников навигационных систем на высотах до 36 000 км

Приводятся результаты тестирования доступности навигации по сигналам глобальных навигационных спутниковых систем на орбитах высотой до 36 тысяч километровЛаборатория спутниковых технологий кафедры аэронавигационных систем Национального авиационного университет

Модель для оценки доступности спутников навигационных систем для объектовна высотах до 36 000 км

Приводится модель и результаты моделирования доступности спутников на орбитах высотой до 36 тысяч кмЛаборатория спутниковых технологий кафедры аэронавигационных систем Национального авиационного университет