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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…
Hiroko Tokura, Hideki Yamada, Nobuaki Kubo, Sam Pullen
Combined multi-global navigation satellite system (GNSS) signals are capable of improving satellite availability for both standalone and differential positioning. Currently, the potential for highaccuracy automobile navigation using GNSS is constrained by sev…
Marc-Antoine Fortin, Jean-Christophe Guay, René Jr. Landry
This paper presents observations on the WAAS L1 and L5 signals quality and their impact on the robustness of the navigation solution by quantifying the contributions of each broadcasted differential correction. This work is undertaken with the intent of defin…
Tingyan Xing, Shang Zhang, Liufeng Tao
Location Based Services (LBS) have become a popular technology to retrieve information about the surroundings of a mobile user which results in ubiquitous demand of spatial information service with diverse needs of different types of users. The aim of this pa…
Tingyan Xing, Shang Zhang, Fan Zhang
By contrasting the traditional way in which GIS was completed that comes with less flexible, low efficiency, and lack redundancy which cause high entry cost, the fast development of microkernel plug-in technology provides the lightweight, efficient and scalab…
Sheetal P. Karia, Kamlesh N. Pathak, Kunvar S. Yadav, Nikita P. Chaudhary, Nilesh C. Patel. Ranjan Jana
The present paper reports the modification in GPS TEC (total electron content) and atmospheric refractivity prior to the Iran earthquake that had occurred on 16 April 2013 in Iran (28.10°N, 62.05°E). The analysis of GPS-based TEC from two GPS receivers, Surat…
P. Kaufmann, P. L. Kaufmann, S. V. D. Pamboukian, R. Vilhena de Moraes
A new system’s geo-referencing from space is entirely free from any GNSS (GPS or equivalent) systems. The system addresses to various strategic and economic applications such as in remote clock synchronism, aircraft and balloon navigation, missile and smart b…
Isioye Olalekan Adekunle
Single frequency GNSS receivers are the most widely used tools for tracking, navigation and geo-referencing around the world. It is estimated that over 75% of all GNSS receivers used globally are single frequency receivers and users experience positioning err…
Bharati Bidikar, Gottapu Sasibhushana Rao, Laveti Ganesh, MNVS Santosh Kumar
Global Positioning System (GPS) is a satellite - based navigation system that provides a three - dimensional user position (x,y,z), velocity and time anywhere on or above the earth surface. The satellite - based position accuracy is affected by several factor…
Xuying Ma, Yunzhong Shen
The BeiDou-2 satellite navigation system broadcasts triple frequency data. In this paper, the pseudorange mul tipath is extracted by using the geometry-free and ionosphere-free combination of one pseudorange and two phase measurements, and the phase multipath…
S. C. Chakravarty
Since IGY (International Geophysical Year), through coordinated global observations, ionospheric research has been carried out by many countries. This effort primarily helped in the design and operation of HF radio wave communication systems. The Indian regio…
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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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