Results 171 to 180 of about 51,964 (204)
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Development trends of the national secure PNT system based on BDS
Science China Earth Sciences, 2023Xia Ren
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A Multisource PNT Fusion Algorithm Based on a Variance Genetic Model
International Journal of Control, Automation and Systems, 2022Qing Hu, Yue Zhu
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Metrijske karakteristike testa PNT
1987Provedeno je izračunavanje osnovnih metrijskih karakteristika Purdue neverbalnog testa, na uzorku od 800 zdravih ispitanika. Na obje forme testa, dobiveni su veoma dobri rezultati što se tiče pouzdanosti, diskriminatiovnopsti i homogenosti. Obke forme testa su praktički jednako dobre i njihovi rezultati se mogu direktno uspoređivati.
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A Feasibility Study for Signal-in-Space Design for LEO-PNT Solutions With Miniaturized Satellites
IEEE Journal on Miniaturization for Air and Space Systems, 2022Ruben Morales-Ferre +2 more
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Executive Brief: GPS-Denied Assured PNT - Dual-Anchor Architecture Assessment (DAL-PNT v3.0)
Technology risk assessment identifying three systemic failures in current GPS-denied PNT architectures: (1) False Authentication Equivalence - systems place GPS M-code (encrypted, SAASM red-key), eLoran (station ID + TOA, no cryptographic signing), Locata (proprietary security), and TerraPoiNT (authentication unimplemented in tested receivers per JRC ...openaire +1 more source
Precision and Navigational PNT Systems
2015The U. S. NAVSTAR GPS system was the first and is still by far the most commonly used advanced satellite navigation system. It is made up of three segments: the space segment (a constellation of satellites in orbit), the control segment (ground stations and control centers that operate and oversee the system), and the user segment (your smart phone or ...
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