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    Wyświetlanie 1-3 z 3
    Tytuł:
    Inertial Navigation Static Calibration
    Autorzy:
    Niespodziany, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/226120.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    inertial
    navigation
    imu
    calibration
    Opis:
    Inertial navigation is a device, which estimates its position, based on sensing external conditions (such as acceleration or angular velocity). It is widely used in various applications. Its presence in a drone vehicle for example, allows flight stabilization, by position estimation and feedback-based regulation algorithm execution. A smartphone makes a use of inertial navigation by detecting movement and flipping screen orientation. It is a ubiquitous part of many devices of everyday use, but before using filters and algorithms allowing to calculate the position, a calibration must first be applied to the device. This paper focuses on a separate calibration of each of the sensors - an accelerometer, gyroscope and magnetometer. The further step requires a cross-sensor calibration, and the third step is implementation of data filtration algotithm.
    Źródło:
    International Journal of Electronics and Telecommunications; 2018, 64, 2; 243-248
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Detector diode circuit noise measurement and power supply method selection for the fiber optic seismograph
    Autorzy:
    Niespodziany, S.
    Kurzych, A. T.
    Dudek, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1818216.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
    Tematy:
    fiber optic sensor
    fibre optic rotational seismograph
    closed loop
    detector diode
    avalanche photodiode
    noise
    spectral density
    Opis:
    This paper investigates the noise levels present at various points in the FOSREM type fiber optic seismograph. The main aim of this research was to discover magnitudes of noise, introduced by various components of the analog and optical circuits of the device. First, the noise present in the electronic circuit without any optics connected is measured. Further experiments show noise levels including the detector diode not illuminated and illuminated. Additional tests were carried out to prove the necessity of analog circuitry shielding. All measurements were repeated using three powering scenarios which investigated the influence of power supply selection on noise. The results show that the electronic components provide a sufficient margin for the use of an even more precise detector diode. The total noise density of the whole device is lower than 4⋅10⁻⁷ rad/(s√Hz). The use of a dedicated Insulating Power Converter as a power supply shows possible advantages, but further experiments should be conducted to provide explicit thermic confirmation of these gains.
    Źródło:
    Opto-Electronics Review; 2021, 29, 2; 71--79
    1230-3402
    Pojawia się w:
    Opto-Electronics Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Detector diode circuit noise measurement and power supply method selection for the fiber optic seismograph
    Autorzy:
    Niespodziany, S.
    Kurzych, A. T.
    Dudek, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1818219.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
    Tematy:
    fiber optic sensor
    fibre optic rotational seismograph
    closed loop
    detector diode
    avalanche photodiode
    noise
    spectral density
    Opis:
    This paper investigates the noise levels present at various points in the FOSREM type fiber optic seismograph. The main aim of this research was to discover magnitudes of noise, introduced by various components of the analog and optical circuits of the device. First, the noise present in the electronic circuit without any optics connected is measured. Further experiments show noise levels including the detector diode not illuminated and illuminated. Additional tests were carried out to prove the necessity of analog circuitry shielding. All measurements were repeated using three powering scenarios which investigated the influence of power supply selection on noise. The results show that the electronic components provide a sufficient margin for the use of an even more precise detector diode. The total noise density of the whole device is lower than 4⋅10⁻⁷ rad/(s√Hz). The use of a dedicated Insulating Power Converter as a power supply shows possible advantages, but further experiments should be conducted to provide explicit thermic confirmation of these gains.
    Źródło:
    Opto-Electronics Review; 2021, 29, 2; 71--79
    1230-3402
    Pojawia się w:
    Opto-Electronics Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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