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POS is an international journal dedicated to the advancement of the study of navigation and positioning. The goal of this journal is to provide a platform for scientists and academicians all over the world to promote, share, and discuss various new issues and developments in different areas of navigation and positioni…
Mark D. Jacobson, Ayjeren Kossekova
Received Global Positioning System (GPS) signals through a light rain event are measured for 8 GPS satellites. The incident GPS signals are at 1.57542 GHz with right-hand circular polarization (RHCP). The power transmission of GPS signals to the receiver is r…
Hikmat Hamid Asadov, Nargiz Shamil Abilova, Aygul Elchin Nazarova, Lale Imran Nuriyeva
The paper is devoted to optimization of formation flight of UAV carrying out remote sensing of earth surface being positioned at different heights taking into account the differences of atmospheric transmittance at these heights. The task of optimization of r…
Mark D. Jacobson
The Global Positioning System (GPS) is designed to operate in all weather conditions. Here, we discuss a case that involves received GPS signals through a light rain event, with incident energy at 1.57542 GHz right-hand circularly polarized. The power transmi…
Eric Widdison, David G. Long
Wide area multilateration algorithms suffer from stability issues related to the fact that the reference points are nearly coplanar. This paper presents a method to add elevation angle measurements to a multilateration problem and thereby reduce the error per…
Ahmed El Amin, Ahmed El-Rabbany
Monocular visual odometry (VO) is the process of determining a user’s trajectory through a series of consecutive images taken by a single camera. A major problem that affects the accuracy of monocular visual odometry, however, is the scale ambiguity. This res…
Zvi Ben-Avraham, 1 1, Gerald Schubert, Emanuele Lodolo, Uri Schattner
Subduction plays a fundamental role in plate tectonics and is a significant factor in modifying the structure and topography of the Earth. It is driven by convection forces that change over a >100 Myr time scale. However, when an oceanic plateau approaches, i…
Lev Eppelbaum, Zvi Ben-Avraham, Youri Katz, Sierd Cloetingh, Mikhail Kaban, 1 1
In the Arabian - Northern African region, interaction of the Nubian, Arabian and Eurasian plates and many small tectonic units is conspicuous. In order to better understand this interaction, we use satellite derived gravity data (retracked to the Earth’s surf…
H. H. Asadov, L. I. Nuriyeva
The new method for prediction of earthquake center zone is suggested. The method is based on feature of amount of registered information to reach its maximum upon some condition regulating interrelation of major parameters of used distributed measuring system…
Akram Afifi, Brendan Woo
In this paper, SLAM systems are introduced using monocular and stereo visual sensors. The SLAM solutions are implemented in both indoor and out door. The SLAM samples have been taken in different modes, such as a straight line that enables us to measure the d…
Abdelsatar Elmezayen, Ahmed El-Rabbany
Real-time precise point positioning (PPP) is possible through the use of real-time precise satellite orbit and clock corrections, which are available through a number of organizations including the International GNSS Service (IGS) real-time service (IGS-RTS).…
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POS is an international journal dedicated to the advancement of the study of navigation and positioning. The goal of this journal is to provide a platform for scientists and academicians all over the world to promote, share, and discuss various new issues and developments in different areas of navigation and positioni… All articles are open access under a CC BY 4.0 licence, with authors retaining copyright.
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