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A study of the accuracy of the definition of coordinates of air targets in satellite-pseudolite multipositional surveillance system

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UDC 621.396.98 BBK 32.95

Kiryushkin V. V., D’yakonov E. A.

The article describes the study of the accuracy of determination of coordinates of air targets in multipositional surveillance system using the signals of navigation satellites of global navigation satellite systems and pseudolite signals to illuminate air targets. It is shown that the use of pseudolite signals allows to reduce the peak error 8-10 times and decrease the average error of measurement of coordinates of air targets 2-3 times in a multipositional satellite surveillance system.

Key words: global navigation satellite system, multipositional surveillance system, the error of measurement of coordinates, operating zone.

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Concerning the need and possibility of decreasing the human factor influences on flight safety

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UDC 629.7; 629.95; 656.085.22 BBK 39.5

Nikolaykin N. I., Tsetlin V. V., Savchukov S. A., Pozheluyeva Z. V., Starkov E. Y.

The article analyzes the influence of environmental helio-geophysical factors perturbation on physical and chemical properties of water, such as specific conductivity, oxidation-reduction potential, a hydrogen index that are authentically registered in water electrochemical cells by environmetrical methods. Examples of aviation incidents are given and their reasons according to official investigation materials are explained. The authors draw a conclusion that the helio-geophysical factors can influence a person behavior and its possible deviations generally called «a human factor» – one of the reasons of various aircraft accidents.

Keywords: flight safety; aviation incident; human factor; cosmophysical and geophysical factors; danger.

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Tsetlin Vladimir Vladimirovich

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E-mail: v_tsetlin@mail.ru

Place of work: FSBES SSC RF “Institute of biomedical problems of the Russian Academy of Sciences” (IMBP RAS), Moscow, Russia

Academic degree: Doctor of Engineering

Post: the head of laboratory of radiant environment of ISS crews

Specialty from nomenclature of scientific specialties (Code of Higher Attestation Commission): 05.26.02 – safety in emergencies (branch-wise)

Scientific major: safety of population in emergencies

Important publications:

  1. Cetlin V. V. Issledovanie reakcii vody na variacii kosmofizicheskih i geofizicheskih faktorov okruzhajushhej sredy / Aviakosmicheskaja i jekologicheskaja medicina. 2010. T. 44. № 6. S. 26–30.
  2. Cetlin V. V. Vozdejstvie sverh malyh doz ionizirujushhego izluchenija i uslovij gipomagnitnogo polja izmenjajut fiziologicheskie harakteristiki semjan vysshih rastenij / V. V. Cetlin, S. S. Mojsa, M. A. Levinskih, E. L. Nefedova // Aviakosmicheskaja i jekologicheskaja medicina. 2016, T. 50, № 6. – S. 51 – 58.

Savchukov Sergey Alekseevich

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E–mail: ssa312@yandex.ru

Place of work: FSBES SSC RF “Institute of biomedical problems of the Russian Academy of Sciences” (IMBP RAS), Moscow, Russia

Post: Acting supervisor, Laboratory of bioregulation and analysis of complex systems, Department of theoretical problems, RAS, as SRI

Scientific major: general physics

Important publications:

  1. Savchukov S. A. Vzaimootnoshenie gravitacionnogo i jelektromagnit-nogo vzaimodejstvij v astrofizike i ustojchivost’ gravitirujushhih tel // Special’nye issledovanija prostranstva «Problemy sovremennoj fiziki». Vypusk II. Moskva, 1995. S. 71-74; 90. ISSN 0869-6551.
  2. Cetlin V. V. Monitoring okislitel’no-vosstanovitel’nyh reakcij vody na vozdejstvie kosmofizicheskih faktorov / V. V. Cetlin, N. K. Belisheva, V. M. Makeeva, S. S. Mojsa, A. V. Smurov, S. A. Savchukov // Hartija Zemli – prakticheskij instrument reshenija fundamental’nyh problem ustojchivogo razvitija. Sbornik materialov Mezhdunarodnoj nauchno-prakticheskoj konferencii, posvjashhennyj 15-letiju realizacii principov Hartii Zemli v Respublike Tatarstan. Kazan’: Tatarskoe knizhnoe izdatel’stvo, 2016. S. 253–255.

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Pozheluyeva Zlata Vladislavovna

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E–mail: pozhelueva.zlata@mail.ru

Place of study: FSBEO HE “Moscow state technical university of civil aviation” (MSTU CA), Moscow, Russia

Status: student, the 4rd year, faculty of Mechanics,  MSTU CA,  area of training 20.03.01 “Technosphere safety”

Scientific major: providing the comprehensive security on air transport

Important publications:

  1. Pozhelueva Z.V. O neobhodimosti i vozmozhnosti snizhenija voz-dejstvija chelovecheskogo faktora na bezopasnost’ poljotov / N.I. Nikolajkin, V.V. Cetlin, S.A. Savchukov, Z.V. Pozhelueva, E.Ju. Starkov // Crede Experto: transport, obshhestvo, obrazovanie, jazyk. 2017. № 2. S. 201-218.
  2. Pozhelueva Z.V. Issledovanie geofizicheskogo i geleofizicheskogo vozdejstvija na dejatel’nost’ cheloveka / Z.V. Pozhelueva, N.I. Nikolajkin. Sbornik dokladov H Vserossijskoj konferencii uchenyh i specialistov (s mezhdunarodnym uchastiem) «Budushhee mashinostroenija Rossii»: 25-28 sentjabrja 2017. M.: Izd-vo MGTU im. N.Je. Baumana. 2017. S. 403 – 405.

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Extraction of run-up signals in systems of information communication in VDL-2 mode

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UDC 621.396.74 BBK 39.571.5

Mezhetov M. A., Turincev S. V.

Air-to-air and air-to-ground automated data exchange systems are increasingly common. Automated data exchange (ADE) in such systems is conducted in VHF band with the use of VDL-2 или VDL-4 modes. The design of ADE receivers implies a clock sync (CS) circuit in their composition which can be constructed differently. A run-up signal in such systems is extracted digitally.  One of the factors influencing the quality if received information in VDL-2 systems is selection of a technique of run-up signal regeneration.  

The article considers a technique of run-up signal regeneration with use of front reconstruction which is implemented in a hardware-software receiver developed by the authors. Research of CS regeneration principles will enable to conduct a comparative analysis of different techniques of extracting and forming a run-up signal and to apply the hardware-software receiver for further research.

Key words: VDL-2, clock sync systems, Gardner detector, scrambler, quadrature components, hardware-software receiver.

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Stages of formation and development of aeronautical radionavigation scientific school of MSTU CA, Irkutsk branch

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UDC 621.391:621.396 BBK 39.57-5

Lezhankin B. V.

The article analyzes the stages of formation and development of aeronautical radio-navigation scientific school of MSTU CA, Irkutsk Branch. The main scientific approaches are described. The article reviews the main scientific staff publications.  It demonstrates the research intergenerational continuity, development of the methodology and scientific and experimental facilities.

Keywords: scientific school, radionavigation, interaircraft navigation, satellite navigation.

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Precision of the secondary processing algorithm of navigation signals of the global navigation satellite system based on rho-rho navigation-doppler extended Kalman filter

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UDC 621.396.98 BBK 39.57-5

Kiryushkin V. V., Suprunov A. V.

The authors conduct a research of the error dynamics of the algorithm of the secondary processing of navigation signals of the global navigation satellite system based on extended Kalman filter. The article shows that at the stages of intense maneuvering the accuracy of a certain positioning of a highly dynamic consumer increases to 1.5 times. Presumably the reason for this is the mismatch of the dynamic model of the object, embedded in the optimal linear filter and real dynamics of users’ movements.

Key words: global navigation satellite system, highly fluid consumer, extended Kalman filter, measurement error of coordinates.

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Concerning a new possibility of increasing the positioning accuracy in single-frequency equipment of satellite radio navigation systems

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UDC 004:[316.3:008] BBK 74.58:73

Gorbachev O. A., Zatolokin D. A., Ivanov V. B., Kholmogorov A. A.

The problem of increasing the positioning accuracy of global navigation satellite systems is one of the most important problems of navigation. One of the most inexpensive ways to solve the problem is the time-differential mode of GNSS proposed by the authors earlier. The article focuses on modernization of the time-differential mode for satellite radio navigation systems (SRNS) operating in a single-frequency mode.

Keywords: navigation problem; single-frequency receiver; antenna phase center; differential mode; control and correction station; pseudorange.

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