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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…
Khaled Rouabah, Chebir Saifeddine, Salim Atia, Mustapha Flissi, Djamel Chikouche
In this paper we propose the derivation of the expressions for the non-coherent Delay Locked Loop (DLL) Discriminator Curve (DC) in the absence and presence of Multipath (MP). Also derived, are the expressions of MP tracking errors in non-coherent configurati…
Khalid Amin Khan, Gulraiz Akhter
This paper describes GPS Workstation, a general purpose navigation software which requires a low-cost GPS connected to the computer. It provides an integrated display of positioning data along with satellite positions, their signal strengths and data quality…
Kyra Moon, David G. Long
Factorized backprojection is a processing algorithm for reconstructing images from data collected by synthetic aperture radar (SAR) systems. Factorized backprojection requires less computation than conventional time-domain backprojec tion with minimal loss in…
Chingiz Hajiyev, Sıtkı Yenal Vural
The aim of this study is designing an optimal controller with linear quadratic regulator (LQR) method for a small un manned air vehicle (UAV). To better evaluate the effect of disturbances on the obtained measurements a Kalman filter is also used in the syste…
Leonimer Flávio de Melo, João Mauricio Rosário, Almiro Franco da Silveira Junior
In the mobile robotic systems a precise estimate of the robot pose (Cartesian [x y] position plus orientation angle theta) with the intention of the path planning optimization is essential for the correct performance, on the part of the robots, for tasks that…
Guohua Gu, Wuxing Wang
Earthquake predictions inChinahave had rare successes but suffered more tragic setbacks since the Xintai earthquake in 1966. They have developed with twists and turns under the influence of the viewpoint that earthquakes are unpre dictable etc. Though the Wen…
Garib Shamil Mamedov, Ramiz Ahmed Eminov, Elchin Ibad Maharramov, Hikmat Hamid Asadov
The averaged integrated parameter representing the mean value of ratio of total water vapors on wet delay at the chosen distance of latitude is suggested. The function of interrelation of such parameters as height of lo cation site and latitude is suggested.…
Ashraf Abd El-Wanis Beshr, Mosbeh R. Kaloop
Bridges are omnipresent in every society and they affect its human, social, ecological, economical and cultural aspects. This is why a durable and safe usage of bridges is an imperative goal of structural management. Measurement and monitoring have an essenti…
Guillaume Lamontagne, René Jr. Landry, Ammar B. Kouki
This paper describes the design of a flexible Direct RF Sampling based GNSS receiver as well as its use for the verification of jitter effects on various performance metrics. The proposed architecture allows the sampling and the real-time digital signal proce…
Jing He, Yongshu Li, Keke Zhang
UAV remote sensing as a digital aerial photography, not only has some basic photogrammetry features, but also has some other features. In this paper, aim at the characteristics of UAV remote sensing, begin with image data acquisition, the various parameter se…
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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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