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    Tytuł:
    Survey of Radio Navigation Systems
    Autorzy:
    Gilski, P.
    Stefański, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/227025.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    radio navigation
    radio communication
    satellite navigation systems
    radiofrequency identification
    Opis:
    At present, there is a growing demand for radio navigation systems, ranging from pedestrian navigation to consumer behavior analysis. These systems have been successfully used in many applications and have become very popular in recent years. In this paper we present a review of selected wireless positioning solutions operating in both indoor and outdoor environments. We describe different positioning techniques, methods, systems, as well as information processing mechanisms.
    Źródło:
    International Journal of Electronics and Telecommunications; 2015, 61, 1; 43-48
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of satellite techniques in geodesy and navigation in Poland
    Autorzy:
    Baran, Lubomir W.
    Oszczak, Stanisław
    Zieliński, Janusz B.
    Powiązania:
    https://bibliotekanauki.pl/articles/703201.pdf
    Data publikacji:
    2008
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    geodesy
    reference frame
    Global Positioning System – GPS
    satellite techniques
    satellite navigation
    Galileo navigation system
    Opis:
    Contemporary geodesy is of global dimension. The reference frame is defined as the geocentric system with parameters related to the entire Earth body, e.g. the axis of rotation, and global geoid. The unified time scale is determined for the whole Earth territory as well. International services using different satellite techniques are engaged in the determination of this frame. Particularly important is the Global Positioning System GPS, which is the most important geodetic tool nowadays. In Poland a number of geodetic observatories are working in the frame of the international networks, Polish scientific groups contribute to the advancement of science in this domain. For the practical applications we are using the local networks that again are constructed with satellite techniques. In Europe the regional network EUREF exists while its part EUREF-POL and densification POLREF are in Poland. The modern network ASG-EUPOS is under construction. The GPS technique is used for surveying and navigation and for the positioning in motion, which is in-between the preceding traditional methods. Differential augmentation methods are designed to improve GPS signals such as DGPS and EGNOS. The new European satellite navigation system Galileo is in development. Poland is a member and coowner of this system. A number of Polish research institutions are working on new methods of the practical application of GNSS.
    Źródło:
    Nauka; 2008, 4
    1231-8515
    Pojawia się w:
    Nauka
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Satellite Navigation Systems in the transport, today and in the future
    Nawigacyjne systemy satelitarne w transporcie, obecnie i w przyszłości
    Autorzy:
    Januszewski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/224195.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    nawigacyjne systemy satelitarne
    systemy nawigacyjne
    GPS
    GLONAS
    satelitarne systemy wspomagające
    satellite navigation systems
    maritime transportation
    land transportation
    transport markets
    Opis:
    Operational status and practical exploitation (October 2010) of Satellite Navigation Systems (SNS), as GPS and GLONASS, and Satellite Based Augmentation System (SBAS), as EGNOS are presented in this paper. Other SNS are under development as Galileo and Compass, other SBAS in various part of the world are already available (WAAS, MSAS) or under development as GAGAN or SDCM. The receivers of these systems are now found in every mode of transportation - air, maritime and land. Additionally SNS markets and applications in the transport and the most significant events in the satellite navigation systems in the nearest years and SNS markets and applications are described also.
    W artykule omówiono status operacyjny i problemy eksploatacyjne (październik 2010) nawigacyjnych systemów satelitarnych (SNS), takich jak GPS i GLONASS oraz satelitarnych systemów wspomagających (SBAS), takich jak EGNOS. W różnych częściach świata dostępne są inne systemy (WAAS i MSAS), kolejne (Galileo, Compass, QZSS, GAGAN) są na etapie budowy. Odbiorniki w/w systemów znalazły zastosowanie we wszystkich rodzajach transportu. Omówiono też najważniejsze wydarzenia jakich można spodziewać się w najbliższych latach w dziedzinie SNS oraz wykorzystanie tychże systemów na rynku transportowym.
    Źródło:
    Archives of Transport; 2010, 22, 2; 175-187
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Estimation of Flight Path Deviations for SAR Radar Installed on UAV
    Autorzy:
    Łabowski, M.
    Kaniewski, P.
    Konatowski, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/221533.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Unmanned Aerial Vehicle
    Synthetic Aperture Radar
    inertial measurement unit
    Global Navigation Satellite System
    Opis:
    The paper presents a method of calculation of position deviations from a theoretical, nominally rectilinear trajectory for a SAR imaging system installed on board of UAV. The UAV on-board system consists of a radar sensor, an antenna system, a SAR processor and a navigation system. The main task of the navigation part is to determine the vector of differences between the theoretical and the measured trajectories of UAV center of gravity. The paper includes chosen results of experiments obtained during ground and flight tests.
    Źródło:
    Metrology and Measurement Systems; 2016, 23, 3; 383-391
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Estimation of UAV Position with Use of Smoothing Algorithms
    Autorzy:
    Kaniewski, P.
    Gil, R.
    Konatowski, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/221380.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Unmanned Aerial Vehicle
    Inertial Navigation System
    Global Navigation Satellite System
    Integrated Navigation System
    Synthetic Aperture Radar
    Kalman Filter
    smoothing algorithm
    Opis:
    The paper presents methods of on-line and off-line estimation of UAV position on the basis of measurements from its integrated navigation system. The navigation system installed on board UAV contains an INS and a GNSS receiver. The UAV position, as well as its velocity and orientation are estimated with the use of smoothing algorithms. For off-line estimation, a fixed-interval smoothing algorithm has been applied. On-line estimation has been accomplished with the use of a fixed-lag smoothing algorithm. The paper includes chosen results of simulations demonstrating improvements of accuracy of UAV position estimation with the use of smoothing algorithms in comparison with the use of a Kalman filter.
    Źródło:
    Metrology and Measurement Systems; 2017, 24, 1; 127-142
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Thermal navigation for blind people
    Autorzy:
    Marzec, Paweł
    Kos, Andrzej
    Powiązania:
    https://bibliotekanauki.pl/articles/2090710.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    blind/visually impaired person
    GPS
    infrared matrix
    infrared sensors
    low-energy measurement systems
    mobile robots
    satellite navigation
    thermal navigation
    osoba niewidoma
    osoba niedowidząca
    matryca podczerwieni
    czujniki podczerwieni
    systemy pomiarowe niskoenergetyczne
    roboty mobilne
    nawigacja satelitarna
    nawigacja termiczna
    Opis:
    This article presents a system of precise navigation for a visually impaired person which uses GPS navigation and an infrared sensor in the form of an infrared matrix. The presented system allows determining the orientation and distance of a blind person relative to a selected object, e.g. a wall or road edge. The application of the above solution facilitates a significant increase in the accuracy of determining the position of a blind person compared to the accuracy offered by commonly used ground satellite devices. The system uses thermal energy accumulated in the environment without the need to generate additional signals. The main parts of the system are a simple infrared matrix, data processing system and vibrating wristband. Messages and navigation warnings are sent to a blind person in the form of a vibration code. The article describes the method of determining the path of a specified width and distance from the wall of a building, curb, etc., along which a blind person should move. The article additionally describes the method of determining the orientation of a blind person depending on the selected object. Such a method facilitates verifying whether the visually impaired person is moving according to the indicated direction. The method can also be used to navigate mobile robots. Due to the use of natural energy for data registration and processing, the mobile navigation system can be operated for a long time without the need to recharge the battery.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 1; e136038, 1--11
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Thermal navigation for blind people
    Autorzy:
    Marzec, Paweł
    Kos, Andrzej
    Powiązania:
    https://bibliotekanauki.pl/articles/2173567.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    blind/visually impaired person
    GPS
    infrared matrix
    infrared sensors
    low-energy measurement systems
    mobile robots
    satellite navigation
    thermal navigation
    osoba niewidoma
    osoba niedowidząca
    matryca podczerwieni
    czujniki podczerwieni
    systemy pomiarowe niskoenergetyczne
    roboty mobilne
    nawigacja satelitarna
    nawigacja termiczna
    Opis:
    This article presents a system of precise navigation for a visually impaired person which uses GPS navigation and an infrared sensor in the form of an infrared matrix. The presented system allows determining the orientation and distance of a blind person relative to a selected object, e.g. a wall or road edge. The application of the above solution facilitates a significant increase in the accuracy of determining the position of a blind person compared to the accuracy offered by commonly used ground satellite devices. The system uses thermal energy accumulated in the environment without the need to generate additional signals. The main parts of the system are a simple infrared matrix, data processing system and vibrating wristband. Messages and navigation warnings are sent to a blind person in the form of a vibration code. The article describes the method of determining the path of a specified width and distance from the wall of a building, curb, etc., along which a blind person should move. The article additionally describes the method of determining the orientation of a blind person depending on the selected object. Such a method facilitates verifying whether the visually impaired person is moving according to the indicated direction. The method can also be used to navigate mobile robots. Due to the use of natural energy for data registration and processing, the mobile navigation system can be operated for a long time without the need to recharge the battery.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 1; art. no. e136038
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    New threat to global transport. GNSS receiver spoofing
    Autorzy:
    Gucma, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/224112.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    GNSS Receiver
    Global Navigation Satellite System
    signal spoofing
    anti-spoofing technique
    global transport
    threats
    GNSS
    komunikacja globalna
    zagrożenia
    Opis:
    Transport and logistics in XXI century relies on the several technical systems for assuring safe and reliable operations. One of widely used systems are satellite positioning systems, used to monitoring transport means and cargo itself. Reliability of the whole transport chain is often combined with singular reliability of satellite monitoring system. Possible threats to precise positioning of any vehicle is GNSS (Global Navigation Satellite System) deliberate interference. So called spoofing interference can mislead receiver in transport objective for reporting entirely wrong position and timing. To fight with this phenomena’s antispoofing techniques are developed. This paper will provide a review of late researches in field of GNSS anti-spoofing on the side of receiver. GNSS receiver vulnerabilities for a spoofer (device) attack will be presented as well as anti-spoofing algorithms. Possible limitation, costs as well as countermeasures methods will be shown thoroughly. Some of recent trends in anti-spoofing techniques in the world will be outlined up to date.
    Źródło:
    Archives of Transport; 2015, 35, 3; 7-14
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of global navigation satellite system and hydroacoustic techniques to safety of inland water navigation
    Zastosowanie globalnych nawigacyjnych systemów satelitarnych oraz współczesnych technik hydroakustycznych w bezpiecznej nawigacji śródlądowej
    Autorzy:
    Popielarczyk, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/224351.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    nawigacja śródlądowa
    systemy satelitarne
    mapy batymetryczne
    bezpieczeństwo żeglugi śródlądowej
    baza śródlądowych przeszkód podwodnych
    Szlak Wielkich Jezior Mazurskich
    global navigation satellite system (GNSS)
    hydrography
    Interactive Inland Underwater Objects Dstabase (IIUOD)
    inland navigation
    Opis:
    The paper presents description of application of integrated, Global Navigation Satellite System (GNSS) and hydroacoustic technologies, for elaboration of actual bathymetric chart and creation of an Inland Interactive Underwater Objects Base (IIUOD). In the paper the description of some integrated bathymetric experiments conducted on Great Mazurian Lakes is presented. A small area of Lake Sniardwy, the largest lake in Poland, has been measured using modern technology with precise satellite positioning and hydrographic techniques. The idea and first results of the implemented base is analyzed and described. The database (IIUOD) is created for visualization of dangerous underwater objects and finally for safety of inland water navigation.
    Artykuł przedstawia zastosowanie zintegrowanych technik satelitarnego pozycjonowania GNSS i systemu hydroakustycznego do opracowania aktualnych map batymetrycznych oraz utworzenia Interaktywnej Bazy Śródlądowych Przeszkód Podwodnych w celu zapewnienia bezpieczeństwa żeglugi na Szlaku Wielkich Jezior Mazurskich. W artykule opisano eksperymentalne prace pomiarowe wykonane na jeziorze Śniardwy z zastosowaniem satelitarnego pozycjonowania DGPS/EGNOS oraz systemu hydrograficznego. Przedstawiono także koncepcję oraz wyniki utworzenia eksperymentalnej bazy geodanych o przeszkodach podwodnych. Opracowana baza IBŚPP umożliwia wizualizację kształtu dna oraz przeszkód. Pomaga poprawić bezpieczeństwo żeglugi śródlądowej i uprawiania sportów wodnych na Wielkich Jeziorach Mazurskich.
    Źródło:
    Archives of Transport; 2011, 23, 2; 191-190
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ant colony optimization for data acquisition mission planning
    Autorzy:
    Colmenares, G.
    Halal, F.
    Zaremba, M.B.
    Powiązania:
    https://bibliotekanauki.pl/articles/407293.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    path planning
    environment monitoring
    ant colony optimization
    data acquisition
    navigation control
    satellite imagery
    constraint-based optimization
    Opis:
    The probabilistic Ant Colony Optimization (ACO) approach is presented to solve the problem of designing an optimal trajectory for a mobile data acquisition platform. An ACO algorithm optimizes an objective function defined in terms of the value of the acquired data samples subject to different sets of constraints depending on the current data acquisition strategy. The analysis presented in this paper focuses on an environment monitoring system, which acquires in-situ data for precise calibration of a water quality monitoring system. The value of the sample is determined based on the concentration of the water pollutant, which in turn is obtained through processing of multi-spectral satellite imagery. Since our problem is defined in a continuous space of coordinates, and in some strategies each point is able to connect to any other point in the space, we adopted a hybrid model that involves a connection graph and also a spatial grid.
    Źródło:
    Management and Production Engineering Review; 2014, 5, 2; 3-11
    2080-8208
    2082-1344
    Pojawia się w:
    Management and Production Engineering Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-10 z 10

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