Results 11 to 20 of about 843 (194)
The Analyzes of PDOP Factors for a Zigbee Ground – Based Augmentation Systems [PDF]
Polish Maritime Research, 2017 This paper presents the analysis of PDOP factors for a ZigBee ground - based augmentation systems. It presents the idea of such a system followed by the results of assessment of application in Gdansk Marina.
Janowski Artur, Rapinski Jacek
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PDOP VALUES FOR SIMULATED GPS/GALILEO POSITIONING
Survey Review, 2005 The paper illustrates satellite coverage and PDOP values for a simulated combined GPS/Galileo system. The designed GPS satellite constellation and the planned Galileo satellite constellation are presented. The combined system is simulated and the number of visible satellites and PDOP values are estimated at 4140 points aruond the earth.
Cederholm, Jens Peter
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Nanomaterials, 2020 Despite numerous attempts to fabricate the core–shell nanoparticles, novel, simple, and low-cost approaches are still required to produce these efficient nanosystems. In this study, we propose the synthesis of bimetallic core–shell nanoparticles of gold (
Asli Yilmaz, Mehmet Yilmaz
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A Novel Localization Technique Using Luminous Flux
Applied Sciences, 2019 As global navigation satellite system (GNNS) signals are unable to enter indoor spaces, substitute methods such as indoor localization-based visible light communication (VLC) are gaining the attention of researchers.
Muhammad Irshad +6 more
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Engineering ReportsThis article analyzes the BDS Phase III (BDS‐3) single point positioning (SPP) kinematic mode performance, under seven different dual‐frequency ionospheric free combinations (IFC), namely B1C/B2a, B1C/B3I, B1I/B2a, B1I/B2b, B1I/B3I, B2a/B3I, and B2b/B3I,
Xingli Sun, Jinjie Yao
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The new approach to the problem-driven object programming
ITM Web of Conferences, 2016 Using more and more computing devices requires a new programming approach. The programming approach should he simple for an ordinary device user and prohlem-driven. So we propose a new programming concept for easy code writing by any non-programmer.
Prutzkow Alexander, Tsybulko Dmitriy
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Surface Modification of Polydopamine Particles with Polyethyleneimine Brushes for Enhanced Stability and Reduced Fragmentation. [PDF]
Polymers (Basel)Polydopamine (Pdop) particles possess unique properties but suffer from inherent instability in aqueous environments due to the gradual release of Pdop fragments.
Son SH, Kim EJ, Koo HY, Choi WS.
europepmc +2 more sources
GNSS DOPPLER VELOCITY BASED ON ADAPTIVE ROBUST KALMAN FILTERING [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020 The main factors affecting the error of Doppler velocity measurement mainly come from the measurement errors of GNSS data, influence of different motion states on GNSS velocity measurement and the noise of different receiver types.
H. Liu +5 more
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ASSESSING EFFICIENCY OF GPS EPHEMERIDES IN DIFFERENT REGION USING PRECISE POINT POSITIONING [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023 Precise Point Positioning (PPP) is a technique that process Global Positioning System (GPS) observation that can achieve sub-decimetre accuracy. Precise ephemerides that contain satellite clock and position plays a vital role in minimising orbital and ...
H. S. Lee +3 more
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