scholarly journals Peculiarities Regarding Satellite Navigation on the Territory of Romania

2019 ◽  
Vol 25 (3) ◽  
pp. 69-73
Author(s):  
Vlad-Cosmin Vasile ◽  
Corina Naforniţa ◽  
Monica Borda ◽  
Teodor Mitrea
Keyword(s):  
Global Navigation Satellite System ◽  
Navigation System ◽  
Multipath Propagation ◽  
Satellite Navigation ◽  
Satellite System ◽  
Navigation Satellite ◽  
Geographical Position ◽  
Global Navigation ◽  
Differential Corrections ◽  
Global Navigation Satellite

Abstract This paper describes the particularities of satellite navigation on the territory of Romania in search of solutions to improve the accuracy of these systems. The performance of a Global Navigation Satellite System (GNSS) is influenced by many factors, including distortion of the signal, the influence of the ionosphere and the troposphere, multipath propagation. Some of these factors depend on the geographical position and the environment in which the navigation system is used. Moreover, Romania is located at the border of coverage of two Satellite Based Augmentation Systems (SBAS) – European Geostationary Navigation Overlay Service (EGNOS) and System for Differential Corrections and Monitoring (SDCM) which leads to some peculiarities regarding satellite navigation.

scholarly journals A Navel Analysis of GNSS for Monitoring the Position of Trains

2018 ◽  
Vol 7 (3.27) ◽  
pp. 24
Author(s):  
P Yakaiah ◽  
K Nishanth Rao ◽  
S V.S. Prasad ◽  
G Ramesh Reddy ◽  
B Raveendranadh ◽  
...  
Keyword(s):  
Global Navigation Satellite System ◽  
Navigation System ◽  
Satellite System ◽  
Water Levels ◽  
Railway Track ◽  
Navigation Satellite ◽  
Global Navigation ◽  
Global Navigation Satellite ◽  
System 1

This Proposed paper using the technique of Navigation system that is Global navigation satellite system[1-2], which are usable to reach the trains in accurate time. The performance of these system is able analyze the based on reliability and maintainability. In this paper presented the operation of receiver navigation system, and also analyze the water levels on the railway track, and also identifying the accidents, and the information will be sent to respective registered mobiles.  

An improved integrated navigation method based on RINS, GNSS and kinematics for port heavy-duty AGV

2020 ◽  
Vol 234 (8) ◽  
pp. 2135-2153
Author(s):  
Zhuang Fu ◽  
Xin Feng ◽  
Xiaoming Duan ◽  
Zeyu Fu
Keyword(s):  
Global Navigation Satellite System ◽  
Navigation System ◽  
Inertial Navigation System ◽  
Satellite System ◽  
Automated Guided Vehicle ◽  
Navigation Satellite ◽  
Integrated Navigation ◽  
Heavy Duty ◽  
Global Navigation ◽  
Global Navigation Satellite

The current navigation methods for port heavy-duty automated guided vehicle mainly include the antenna radar-transponder navigation and the global navigation satellite system. However, the former has a huge cost and the latter will generate multi-path error easily. To avoid these problems, an improved integrated navigation method based on single-axis rotating inertial navigation system, global navigation satellite system and kinematics is proposed. First, the rotating inertial navigation system/ global navigation satellite system and rotating inertial navigation system/Kinematics integrated navigation methods generate corresponding estimates and filtering error covariances through their respective extended Kalman filter filters, and then the two sets of results are fused by the optimal weighted voting fusion method. The proposed method is applied to a heavy-duty automated guided vehicle for engineering verification. Without multi-path error, the navigation accuracy is 1.8–2.98 times higher than that of the traditional global navigation satellite system navigation. In the case of multi-path error, the improved method still has high fault tolerance and high navigation accuracy. The accuracy of this method satisfies the requirements of port heavy-duty automated guided vehicle, which can greatly reduce the number of transponders and has high practical value.

scholarly journals OutFin, a multi-device and multi-modal dataset for outdoor localization based on the fingerprinting approach

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Fahad Alhomayani ◽  
Mohammad H. Mahoor
Keyword(s):  
Global Navigation Satellite System ◽  
Urban Areas ◽  
Satellite System ◽  
Reference Points ◽  
Navigation Satellite ◽  
Data Types ◽  
Entry Barrier ◽  
Promising Alternative ◽  
Global Navigation ◽  
Global Navigation Satellite

AbstractIn recent years, fingerprint-based positioning has gained researchers’ attention since it is a promising alternative to the Global Navigation Satellite System and cellular network-based localization in urban areas. Despite this, the lack of publicly available datasets that researchers can use to develop, evaluate, and compare fingerprint-based positioning solutions constitutes a high entry barrier for studies. As an effort to overcome this barrier and foster new research efforts, this paper presents OutFin, a novel dataset of outdoor location fingerprints that were collected using two different smartphones. OutFin is comprised of diverse data types such as WiFi, Bluetooth, and cellular signal strengths, in addition to measurements from various sensors including the magnetometer, accelerometer, gyroscope, barometer, and ambient light sensor. The collection area spanned four dispersed sites with a total of 122 reference points. Each site is different in terms of its visibility to the Global Navigation Satellite System and reference points’ number, arrangement, and spacing. Before OutFin was made available to the public, several experiments were conducted to validate its technical quality.

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