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    Wyświetlanie 1-12 z 12
    Tytuł:
    Monitoring and evaluation of rowing performance using mobile mapping data
    Autorzy:
    Mpimis, A.
    Gikas, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/129749.pdf
    Data publikacji:
    2011
    Wydawca:
    Stowarzyszenie Geodetów Polskich
    Tematy:
    sensor
    mapping
    GNSS
    MEMS-IMU
    czujnik
    mapowanie
    Opis:
    Traditionally, the term mobile mapping refers to a means of collecting geospatial data using mapping sensors that are mounted on a mobile platform. Historically, this process was mainly driven by the need for highway infrastructure mapping and transportation corridor inventories. However, the recent advances in mapping sensor and telecommunication technologies create the opportunity that, completely new, emergent application areas of mobile mapping to evolve rapidly. This article examines the potential of mobile mapping technology (MMT) in sports science and in particular in competitive rowing. Notably, in this study the concept definition of mobile mapping somehow differs from the traditional one in a way that, the end result is not relevant to the geospatial information acquired as the moving platform travels in space. In contrast, the interest is placed on the moving platform (rowing boat) itself and on the various subsystems which are also in continuous motion. As an initial step of an on-going research this article discusses the biomechanics of rowing in relation to applied technique and equipment. Also, it reviews the current practices and sensor systems used for monitoring and evaluating performance in rowing. Finally, it presents an integrated data acquisition and processing scheme for rowing based on modern MMT. To this effect, a critical assessment of the various types of sensors as well as their installation and integration into a recording system is detailed. This analysis benefits by a number of preliminary tests using real data recordings. The boat kinematics (velocity, acceleration and attitude), techniques for their noise elimination and processes for computing average stroke characteristics are studied thoroughly. Also, the pattern of motion in rowing (stroke cycle) is examined in relation to athlete technique and capacity.
    Źródło:
    Archiwum Fotogrametrii, Kartografii i Teledetekcji; 2011, 22; 337-349
    2083-2214
    2391-9477
    Pojawia się w:
    Archiwum Fotogrametrii, Kartografii i Teledetekcji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Improving Strapdown Inertial Navigation System Performance by Self-Compensation of Inertial Sensor Errors
    Autorzy:
    Chernyak, Mycola
    Kolesnyk, Vadym
    Powiązania:
    https://bibliotekanauki.pl/articles/36832242.pdf
    Data publikacji:
    2023
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
    Tematy:
    MEMS IMU
    autonomous INS
    MEMS self-compensation
    rotation modulation
    Opis:
    Microelectromechanical systems (MEMS)-based strapdown navigation systems offer advantages such as small size, low cost and minimal power consumption. However, MEMS sensors are prone to significant low-frequency noise and poor bias repeatability, which can lead to navigational errors over time. These errors make them unsuitable for autonomous navigation applications, even with frequent recalibration. One way in which to solve this problem is by using the rotation modulation (RM) method. This approach is widely recognised but has only been successful with precise laser and fiber optic gyroscopes equipped with precise rotating platforms. This article focuses on the potential of adapting the RM method for the case of inexpensive MEMS sensors that can significantly improve navigation performance, while maintaining the benefits of microelectromechanical technologies. Potential issues of implementation were discussed, and corresponding requirements were formulated. The proposed optimal computation scheme was verified during static tests of the developed inertial measurement unit (IMU). Further steps in studying the adaptation of the RM method for MEMS sensors have also been outlined.
    Źródło:
    Transactions on Aerospace Research; 2023, 4 (273); 41-51
    0509-6669
    2545-2835
    Pojawia się w:
    Transactions on Aerospace Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Promising wing vibration measurement system using MEMS IMUS and Kalman filter correction
    Autorzy:
    Maamo, M. S.
    Afonin, A. A.
    Sulakov, A. S.
    Powiązania:
    https://bibliotekanauki.pl/articles/2174203.pdf
    Data publikacji:
    2022
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    skrzydło samolotu
    drgania
    filtr Kalmana
    aircraft wing
    vibration measurement
    Kalman filter
    MEMS IMU
    closed-loop optimal correction
    Opis:
    Nowadays, there is still a need for the development of a high-precision vibration measurement system for aircraft wings. By analyzing the wing vibration characteristics a lot of aviation studies could be conducted, including the wing health monitoring, the fluttering phenomenon and so on. This paper presents preliminary results of the research carried out toward building a promising system designed to measure vibration parameters of aircraft wing. Comparing it with the existing analogue systems, the proposed system features the use of approaches that are traditional for solving orientation and navigation problems for vibration measurements. The paper presents the basic structure of the system, the fundamentals of its operation, the mathematical errors models of its main components, the correction algorithms using optimal Kalman filter. Finally, the initial simulation results of system operation are shown, demonstrating the expected accuracy characteristics of the system, which confirms its effectiveness and the prospects of the chosen direction of research.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2022, 27, 2; 143--157
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    MEMS technology evaluation for submerged vehicle navigation
    Autorzy:
    Demkowicz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/331778.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Akustyczne
    Tematy:
    MEMS
    IMU
    INS
    Opis:
    The article undertakes analysis of some vital aspects of inertial navigation using MEMS. Although MEMS inertial sensors offer affordable, scaled units, and though their inherent measurement noise can be relatively easily mitigated, there are still parameters due to which they are not currently capable of meeting all requirements for accurate inertial navigation. The article presents a few aspects of MEMS gyro errors, and their estimation process in the context of INS processing flow. These errors have a serious impact on overall inertial system performance. The results of undertaken researches in that area, and pointing out the main difficulties behind the INS when using a few top MEMS technologies, were presented as well. The paper clearly states, that current MEMS technologies, including sophisticated software, does not fulfil submerged inertial navigation whilst operating in dynamic conditions, due to linear acceleration, affecting gyro performance.
    Źródło:
    Hydroacoustics; 2017, 20; 35-40
    1642-1817
    Pojawia się w:
    Hydroacoustics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    MEMS technology quality requirements as applied to multibeam echosounder
    Autorzy:
    Demkowicz, J.
    Bikonis, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/331722.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Akustyczne
    Tematy:
    MEMS
    IMU
    Multibeam Sonar
    Opis:
    Small, lightweight, power-efficient, and low-cost microelectromechanical system (MEMS) inertial sensors and microcontrollers, available in the market today, help reduce the instability of Multibeam Sonars. Current MEMS inertial measurement units (IMUs) come in many shapes, sizes, and costs — depending on the application and performance required. Although MEMS inertial sensors offer affordable, appropriately scaled units, they are not currently capable of meeting all requirements for accurate and precise attitudes, due to their inherent measurement noise. The article presents the comparison of different MEMS technologies, and their parameters regarding to the main application; namely, Multibeam Echo Sounders (MBES). The MEMS parameters’ quality are crucial for further MBES record- processing, the article presents the results of undertaken researches in that area, and the results are relatively positive for low-cost MEMS.
    Źródło:
    Hydroacoustics; 2016, 19; 75-82
    1642-1817
    Pojawia się w:
    Hydroacoustics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessment of usefulness of the mems-based integrated navigation unit in car navigation
    Autorzy:
    Uradziński, M.
    Rapiński, J.
    Tomaszewski, D.
    Śmieja, M.
    Guo, H.
    Yu, S.
    Jian, X.
    Powiązania:
    https://bibliotekanauki.pl/articles/298138.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie
    Tematy:
    MEMS
    inertial navigation
    GNSS
    GNSS/IMU integration
    car navigation
    Opis:
    Due to the development of MEMS, there is an opportunity to build a low-cost integrated navigation systems, operating independently of horizon visibility. This paper presents the proposal of an integrated GPS/IMU platform using MEMS technology. In order to verify the performance of a system built at the University of Warmia and Mazury, an experiment was conducted. In this experiment a precise Javad GNSS receiver, commercial grade GPS/IMU XW – ADU5660 and own-built system were used. The experiment was conducted to compare the results obtained from self built device with the working military integrated navigation unit. During the study all three devices were mounted inside moving vehicle. The car drove route inside the Kortowo campus, during which, all equipment performed measurements. Then, the results from both integrated systems were compared with RTK (Real Time Kinematic) results from Javad receiver. Experiments prove that the performance of own device is comparable to the commercial device.
    Źródło:
    Technical Sciences / University of Warmia and Mazury in Olsztyn; 2017, 20(4); 321-331
    1505-4675
    2083-4527
    Pojawia się w:
    Technical Sciences / University of Warmia and Mazury in Olsztyn
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of some low- and high-dynamics errors of Low-Cost IMU
    Analiza pewnych błędów „mało dokładnej” inercjalnej jednostki pomiarowej przy niskiej i wysokiej dynamice ruchu
    Autorzy:
    Vorbrich, K. K.
    Powiązania:
    https://bibliotekanauki.pl/articles/145458.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    testy mobilne
    filtr Kalmana
    IMU
    INS
    MEMS
    [D]GPS/IMU
    Kalman filter
    waterborne & landborne tests
    Opis:
    The paper expounds relevant results of some of the present author's experiments defining the strapdown IMU sensors' errors and their propagation into and within DGPS/IMU. In order to deal with this problem, the author conducted both the laboratory and field-based experiments. In the landborne laboratory the stand-alone Low-Cost IMU MotionPak MKII was verified in terms of the accelerometer bias, scale factor, gyroscope rotation parameters and internal temperature cross-correlations. The waterborne field-trials based on board dedicated research ships at the lake and at the busy small sea harbour were augmented by the landborne ones. These experiments conducted during the small, average, and high dynamics of movement provided comparative sole-GPS, stand-alone DGPS and integrated DGPS/IMU solution error analysis in terms of the accuracy and the smoothness of the solution. This error estimation was also carried on in the context of the purposely-erroneous incipient DGPS/IMU initialisation and alignment and further in the circumstances of on-flight alignment improvement in the absence of the signal outages. Moreover, the lake-waterborne tests conducted during extremely low dynamics of movement informed about the deterioration of the correctly initialised DGPS/IMU solution with reference to the stand-alone DGPS solution and sole-GPS solution. The above-mentioned field experiments have checked positively the DGPS/MKI research integrating software prepared during the Polish/German European Union Research Project and modified during the subsequent Project supported by the Polish Committee for Scientific Research.
    Cześć zasadnicza pracy przedstawia pewne rezultaty doświadczeń przeprowadzanych w laboratorium Uniwersytetu w Singapore i wyznaczających błędy stosunkowo "mało-dokładnej" (ag. Low-Cost lub "Low-Grade") inercjalnej jednostki pomiarowej MotionPakTM typu MKII w modzie statycznym i dynamicznym. Ten ostatni był ograniczony do obrotów wokół osi poziomych układu współrzędnych wyznaczanych przez obudowę MKII. Współczynnik skali i stałe przesuniecie skalowane były wartością wektora przyspieszenia ziemskiego. Testy polowe przeprowadzano na pokładzie statków badawczych na jeziorze i na morzu we Władysławowie oraz na ladzie na samochodzie. Praca prezentuje niektóre wyniki testów mobilnych (porównanie ciągłości rozwiązań GPS, DGPS, DGPS/MKI), m.in. przy dużej, średniej oraz bardzo małej (dryf statku) dynamice ruchu. Oprogramowanie umożliwiało prace jednocześnie w modach o notacji: [D]GPS/MKI oraz [D]GPS/INS(MKI). Dla pierwszego z tych modów filtr Kalmana wykorzystywał surowe dane dla inercjalnych przyspieszeń i katów Eulera. Dla drugiego z tych modów do filtra Kalmana wprowadzano inercjalne pseudoodległości i ich zmiany w czasie. Praca prezentuje rezultaty rozwiązania dla modu drugiego. Rozwiązanie ruchu dla GPS, DGPS, oraz [D]GPS/INS(MKI) służyło jako wzorzec dla badania ciągłości rozwiązania samo-stojącego MKI w czasie nieciągłości odbioru sygnału satelity lub telemetrii. Dodatkowo, testy wykonane na jeziorze przy prawie zerowej dynamice ruchu wykazały zmniejszenie dokładności rozwiązania [D]GPS/INS(MKI) w porównaniu do rozwiązania DGPS. Doświadczenia polowe miały m.in. na celu wykazanie prawidłowości działania oprogramowania integrującego wykonanego w ramach polsko-niemieckiego projektu Unii Europejskiej i zmodyfikowanego w czasie grantu finansowanego przez Komitet Badan Naukowych.
    Źródło:
    Geodesy and Cartography; 2011, 60, 1; 35-59
    2080-6736
    2300-2581
    Pojawia się w:
    Geodesy and Cartography
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena przydatności modułów nawigacji bezwładnościowej w bezdotykowych pomiarach położenia kątowego członów maszyn roboczych
    Autorzy:
    Chołodowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1190007.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    system wsparcia operatora
    pozycjonowanie
    nawigacja bezwładnościowa
    czujnik MEMS
    mikrokontroler
    operator assistance system
    positioning
    IMU
    MEMS
    sensors
    microcontroller
    Opis:
    Advantages of automation in industrial vehicles and work machines are numerous. Even partial automation of work machine’s functions contribute to significant improvement in safety, efficiency and precision. For example, risk of accidental damage of power cables and water or gas pipes planted underground can be reduced by application of excavation control system with digging depth limiter. Industrial vehicles equipped with operator assistance systems, e.g. dozers and graders fitted with blade positioning systems, can be driven at higher speed then conventional ones, while performing the same duties. They are also able to accomplish particular task after smaller number of iterations. What is more, costs of surveyors’ and highly experienced operators’ salaries can be declined. Eventually, machines enriched by operator assistance systems, e.g. excavator having a grade control system onboard, can be involved in very unusual and precise works as slope grading, underwater digging and any works conducted after dusk. On the other hand, purchase and installation costs of operator assistance system are relatively high, especially when compared with prices of small industrial vehicles, e.g. so called mini excavators. Cost of said systems could be reduced in many different ways, for example, if cheaper electronic components, e.g. MEMS sensors, were used. Following article presents a contactless method and system for measurement of industrial vehicle’s bodies angular position. The method engages two Attitude and Heading Reference System (AHRS) modules which shall be attached to different work machine bodies. It was empirically verified using two self-made, inexpensive AHRS modules. Both of them consisted of STM32 F4 microcontroller and a triad of triaxial, MEMS sensors: a gyroscope, an accelerometer and a magnetometer. During tests first of modules was fixed to the frame and the second to the bucket of Avant 218 mini loader. Angular position of bucket with respect to vehicle frame was measured. Industrial grade, electronic GEMAC IS2A60P20-0 inclinometer and an optical instrument were used as reference tolls. Achieved results revealed overall error of examined system which is smaller than 1.05O . Further calculations, based on actual dimensions of IHI 35N3 and Komatsu PC750 LC-6 excavators’ arms, proved that the examined system is applicable for excavator arm bodies angular position identification. The distortion of bucket tip coordinates estimation using presented system was computed. In case of bigger Komatsu PC750 vertical and horizontal distortion equaled, respectively, 350 mm and 195 mm. In case of smaller IHI 35N3 both errors turned out to be at least 2.3 times smaller. Summing up, solution examined within the article fits small industrial vehicles particularly well. That is why an idea of a simple and readily available digging depth control system for mini excavators based on presented solution has been conceived. In order to embody said idea, presented system shall be enriched with two additional AHRS modules and operator-system interface, which would enable necessary adjustments. The system should be provided with dimensions of each body of excavator arm and maximum allowable digging depth. A LED or a sound signal could alert the operator in case of exceeding the established limit.
    Źródło:
    Interdisciplinary Journal of Engineering Sciences; 2016, 4, 1; 24--37
    2300-5874
    Pojawia się w:
    Interdisciplinary Journal of Engineering Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Porównanie regularności próbkowania przetworników analogowo-cyfrowych stosowanych w akcelerometrach wybranych urządzeń mobilnych
    A comparison of sample time regularity in analog-to-digital converters used in accelerometers for selected mobile devices
    Autorzy:
    Sieklucki, G.
    Bień, A.
    Sobieraj, S.
    Gromba, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/267237.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Gdańska. Wydział Elektrotechniki i Automatyki
    Tematy:
    akcelerometr
    MEMS
    IMU
    Android
    iOS
    częstotliwość próbkowania
    rejestracja ruchu pojazdów
    accelerometers
    sampling frequency
    vehicle motion
    Opis:
    Praca dotyczy porównania regularności próbkowania trójosiowych czujników przyspieszenia w popularnych smartphone'ach, przedstawiono zestawienie czujników niektórych telefonów. Podstawowym analizowanym parametrem jest stabilność częstotliwości próbkowania w zależności od używanego systemu operacyjnego i producenta urządzenia. Analizę prowadzono tak by wybrane smartphony były wyposażone w różne czujniki pomiarowe - akcelerometry. Zaprezentowano przykład zastosowania pomiarowego - porównawczy pomiar drogowy.
    The work is a description of metrological properties and their comparison for triaxial acceleration sensors (MEMS - MicroElectro-Mechanical System, IMU - Inertial Measurement Unit) in popular and modern smartphones. A comparison of the components of some phones is presented. The stability of the sampling time is the basic parameter which is analyzed. Sampling time in analog-to-digital converters (inside MEMS units) depends on the operating system of smartphone and its components (processor, RAM) which are used in its construction. The analysis was performed in order to select smartphones which are equipped with different measuring systems - MEMS accelerometers. The Android and iOS operating systems are used in research. The comparative road measurement is presented as an example of measuring application with smartphones. Physics Toolbox Sensor Suite software (free software for iOS and Android) used in the measurement of a vehicle motion. Results for 3D acceleration signals processing with variable sampling time are presented and compared for different smartphones.
    Źródło:
    Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej; 2017, 54; 207-210
    1425-5766
    2353-1290
    Pojawia się w:
    Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wykorzystanie jednostki IMU typu MEMS do określenia przybliżonych elementów orientacji zdjęć naziemnych
    Determination of approximated exterior orientantion parameteres of terrestrial images using MEMS IMU
    Autorzy:
    Kolecki, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/129886.pdf
    Data publikacji:
    2012
    Wydawca:
    Stowarzyszenie Geodetów Polskich
    Tematy:
    MEMS
    IMU
    georeferencja wprost
    system mobilnego kartowania
    fotogrametria naziemna
    direct georeferencing
    mobile mapping system
    terrestrial photogrammetry
    Opis:
    Opisane w niniejszej pracy badania dotyczą wykorzystania mikro elektromechanicznych sensorów inercyjnych i magnetycznych do bezpośredniego wyznaczania elementów orientacji zewnętrznej zdjęć pomiarowych. Na początku opisano rolę jaką obecnie jednostki inercyjne typu MEMS odgrywają w kontekście technologii pozyskiwania informacji przestrzennej oraz przedstawiono podstawowe zależności matematyczne obrazujące związek pomiędzy pomiarami inercyjnymi a elementami orientacji sensorów optycznych w szczególności kamer cyfrowych. Pomiary testowe przeprowadzono wykorzystując prototyp systemu fotogrametrycznego zbudowany z aparatu cyfrowego, zestawu GPS oraz jednostki IMU typu MEMS. W ramach prowadzonych prac zrealizowano pomiary w warunkach statycznych oraz dynamicznych. Pomiary inercyjne posłużyły następnie do wyznaczenie elementów orientacji zewnętrznej zdjęć. Uzyskane wyniki pokazują, że błędy uzyskane dla azymutu osi kamery są znacznie wyższe niż dla pozostałych dwóch kątów parametryzujących macierz obrotu. Wskazano na potencjalne źródła błędów związane głównie z niedoskonałością konstrukcji systemu oraz ze zmiennością pola magnetycznego. Podniesienie uzyskiwanych dokładności możliwe jest dzięki integracji pomiarów inercyjnych z pomiarami fotogrametrycznymi oraz pomiarami GNSS. Dalszy rozwój technologii MEMS może stworzyć możliwość konstrukcji jeszcze dokładniejszych sensorów inercyjnych, także wkrótce mogą one znaleźć zastosowanie jako składniki komercyjnych systemów mobilnego kartowania.
    This paper address the topic of application of MEMS inertial and magnetic sensors for direct determination of exterior orientation parameters of acquired images. First the role that MEMS inertial units currently play in the spatial information acquisition technology is characterized. Besides basic mathematical formulas describing the dependencies between inertial measurements and orientation parameters of optical sensors, especially cameras, are given. The test measurements were conducted using the photogrammetric system prototype consisted of the digital camera, GPS set and MEMS IMU. During the tests the measurements in static and dynamic conditions were carried out. Subsequently the inertial measurements were used to determine exterior orientation parameters of acquired images. The obtained results show that relatively high errors affect the determined azimuth of camera axis. The errors of other two angles, that parameterize the rotation matrix, are smaller. The potential sources of errors may be connected mainly with imperfections of system construction and instabilities of the Earth magnetic field. In order to improve the acquired accuracies, further integration of inertial measurements with photogrammetric and GNSS observation can be carried out. Further development of MEMS technology may provide the possibility of constructing more accurate sensors so that they can be shortly concerned as parts of commercial mobile mapping systems.
    Źródło:
    Archiwum Fotogrametrii, Kartografii i Teledetekcji; 2012, 24; 133-143
    2083-2214
    2391-9477
    Pojawia się w:
    Archiwum Fotogrametrii, Kartografii i Teledetekcji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Efficiency of MEMS inertial sensors used in low-dynamics application
    Autorzy:
    Szumski, A.
    Eissfeller, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/117053.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Positioning, Navigation and Timing (PNT)
    Fiber Optic Gyroscopes (FOG)
    Microelectromechanical Systems (MEMS)
    gyrocompassing
    Inertial Measurement Unit (IMU)
    inertial systems
    Inertial Navigation Systems (INS)
    Allan standard deviation
    Opis:
    The analysis presents the performance of navigation application driven with MEMS and FOG inertial sensors. The inertial sensors were working under conditions simulating a potential robotic mission, which reduce accuracy of some of the navigation applications. Empirical results of the test confirm degradation of the navigation system performance in the presented demanding mission. Influence of the testing conditions and of the inertial sensor technology is presented and discussed in the paper.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 2; 221-226
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Data Integration from GPS and Inertial Navigation Systems for Pedestrians in Urban Area
    Autorzy:
    Bikonis, K.
    Demkowicz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/115987.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Inertial Measurement Unit (IMU)
    Urban Area
    inertial navigation system (INS)
    Global Positioning System GPS
    extended Kalman filter (EKF)
    pedestrian trajectory
    Micro Electro Mechanical Systems (MEMS)
    Integration of Navigation
    Opis:
    The GPS system is widely used in navigation and the GPS receiver can offer long-term stable absolute positioning information. The overall system performance depends largely on the signal environments. The position obtained from GPS is often degraded due to obstruction and multipath effect caused by buildings, city infrastructure and vegetation, whereas, the current performance achieved by inertial navigation systems (INS) is still relatively poor due to the large inertial sensor errors. The complementary features of GPS and INS are the main reasons why integrated GPS/INS systems are becoming increasingly popular. GPS/INS systems offer a high data rate, high accuracy position and orientation that can work in all environments, particularly those where satellite availability is restricted. In the paper integration algorithm of GPS and INS systems data for pedestrians in urban area is presented. For data integration an Extended Kalman Filter (EKF) algorithm is proposed. Complementary characteristics of GPS and INS with EKF can overcome the problem of huge INS drifts, GPS outages, dense multipath effect and other individual problems associated with these sensors.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2013, 7, 3; 401-406
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-12 z 12

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