Wyniki wyszukiwania dla: LOCATION MEASUREMENT SYSTEMS

• Metrology and Measurement Systems

  Czasopisma

  ISSN: 0860-8229 , eISSN: 2300-1941

• The Influence of Camera and Optical System Parameters on the Uncertainty of Object Location Measurement in Vision Systems

  Publikacja

  • J. Skibicki
  • A. Golijanek-Jędrzejczyk
  • A. Dzwonkowski

  - SENSORS - Rok 2020

  The article presents the influence of the camera and its optical system on the uncertainty of object position measurement in vision systems. The aim of the article is to present the methodology for estimating the combined standard uncertainty of measuring the object position with a vision camera treated as a measuring device. The identification of factors affecting the location measurement uncertainty and the determination of their...

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• Radio Link Measurement Methodology for Location Service Applications

  Publikacja

  • J. Stefański

  - Metrology and Measurement Systems - Rok 2012

  The aim of this paper is the methodology of measurements executed in a radio link for the realization of radiolocation services in radiocommunication networks, particularly in cellular networks. The main results of the measurements obtained in the physical layer of the universal mobile telecommunications system (UMTS) are introduced. A new method for the utilization of the multipath propagation phenomenon to improve the estimation...

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• Reducing the Uncertainty of the Moving Object Location Measurement with the Method of Quasi-Multiple Measurement in GNSS Technology in Symmetrical Arrangement

  Publikacja

  • J. Skibicki
  • A. Wilk
  • W. Koc
  • R. Licow
  • J. Szmagliński
  • P. Chrostowski
  • S. Judek
  • K. Karwowski
  • S. Grulkowski

  - SENSORS - Rok 2023

  The article presents a solution to the problem of limited accuracy of dynamic measurements performed with GNSS receivers. The proposed measurement method is a response to the needs related to the assessment of the measurement uncertainty of the position of the track axis of the rail transport line. However, the problem of reducing the measurement uncertainty is universal for many different situations where high accuracy of positioning...

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• Reducing the Uncertainty of the Moving Object Location Measurement with the Method of Quasi-Multiple Measurement in GNSS Technology in Symmetrical Arrangement

  Publikacja

  • J. Skibicki
  • A. Wilk
  • W. Koc
  • R. Licow
  • J. Szmagliński
  • P. Chrostowski
  • S. Judek
  • K. Karwowski
  • S. Grulkowski

  - SENSORS - Rok 2023

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• Optical Fibre, Local Measurement Systems For Ships

  Publikacja

  • F. Szczot
  • R. Romaniuk
  • R. S. Romaniuk

  - Rok 1987

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• Determination of vertical displacements by using the hydrostatic levelling systems with the variable location of the reference sensor,

  Publikacja

  • W. Kamiński

  - Archives of Civil Engineering - Rok 2022

  Abstract: In this paper, the author proposed a new method for determination of vertical displacements with the use of hydrostatic levelling systems. The traditional method of hydrostatic levelling uses a rule in which a position of reference sensor is stable. This assumption was not adapted in the proposed method. Regarding the issue mentioned above, the reference sensor is treated in the same way as the others sensors that measure...

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• Design of rail-track geometric systems by satellite measurement

  Publikacja

  • W. Koc

  - JOURNAL OF TRANSPORTATION ENGINEERING-ASCE - Rok 2012

  W pracy przedstawiono rezultaty zastosowania ciągłych pomiarów satelitarnych toru kolejowego, z antenami zainstalowanymi na poruszającym się pojeździe szynowym. Wykazano, że zastosowana pilotażowo technika pomiarowa umożliwia bardzo precyzyjne określenie podstawowych danych do projektowania modernizacji linii kolejowej (kierunków głównych trasy i jej kąta zwrotu), a także - ze stosunkowo niewielkim błędem - współrzędnych istniejącej...

• A review of design approaches for the implementation of low-frequency noise measurement systems

  Publikacja

  • G. Scandurra
  • C. Ciofi
  • J. Smulko
  • H. Wen

  - REVIEW OF SCIENTIFIC INSTRUMENTS - Rok 2022

  Electronic noise has its roots in the fundamental physical interactions between matter and charged particles, carrying information about the phenomena that occur at the microscopic level. Therefore, Low-Frequency Noise Measurements (LFNM) are a well-established technique for the characterization of electron devices and materials and, compared to other techniques, they offer the advantage of being non-destructive and of providing...

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• Application of Maximum-Length Sequences to impulse response measurement of hydroacoustic communications systems

  Publikacja

  • R. Mazurek
  • H. Lasota

  - HYDROACOUSTICS - Rok 2007

  There is a growing interest in digital transmission of telemetry data on ultrasonic waves. The dependence of signal attenuation on squared frequency, specific to the hy-droacoustic systems, induces problems that do not exist in monochromatic, narrowband radio communications systems. For adapting the transmission parameters to current propagation conditions, a precise knowledge of instantaneous changes of channel performances is...

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