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Wyszukujesz frazę "ISB" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Incorporating Inter‑System Bias in Single Point Positioning Based on GPS, Galileo and BeiDou System
Autorzy:
Kwaśniak, Dawid Łukasz
Cellmer, Sławomir
Powiązania:
https://bibliotekanauki.pl/articles/1838009.pdf
Data publikacji:
2021
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
GPS
BDS
Galileo
SPP
ISB
Opis:
The increasing number of satellites provides new opportunities. In the experiment presented in this paper, the Single Point Positioning technique is test ed. Data from four different receivers were used in the tests. The GPS, Galileo and BeiDou System observations were collected over a three day long observational session. The computational process was carried out using self made software and point positions were obtained as the result. The goal of the test was to verify the impact of the Inter System Bias (ISB) on the final results. For this purpose, two cases of processing data were compared: with estimating ISB and without taking into account this parameter. In the paper the formulas of the mathematical models used are presented and, in both of the considered cases, a combination of GPS, BDS and Galileo was used. The results show that in the case where the ISB was taken into account, the accuracy and precision in the positioning was much better than in the approach where the ISB was not considered. Estimating the ISB allows for more precise positioning results to be obtained for car navigation or GIS purposes.
Źródło:
Geomatics and Environmental Engineering; 2021, 15, 1; 97-109
1898-1135
Pojawia się w:
Geomatics and Environmental Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Asynchronous Demodulation Method for Four SSB arranged on Frequency Axis in Mobile Radio Path using Hilbert Transform
Autorzy:
Daikoku, Kazuhiro
Powiązania:
https://bibliotekanauki.pl/articles/1844503.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
asynchronous demodulation
4-SSB
ISB
mobile radio path
Hilbert transform
HF/VHF band telecommunications
tactical communications
underwater communications
Opis:
In this paper, an asynchronous demodulation method for a four-single sideband (SSB) signal arranged on the frequency axis is developed to support burst mode transmission in a mobile radio path and to achieve greater data throughputs. When a reduced pilot carrier is placed at the center of the 4-SSB signal, it is guarded by lower and upper sidebands, that is, this scheme is classified into a tone-in-band (TIB) system. Digital signal processing (DSP) processors are useful for implementing a Hilbert transform. However, we have for a long time neglected introducing it into the demodulation process of SSB signals.
Źródło:
International Journal of Electronics and Telecommunications; 2021, 67, 3; 445-450
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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