GNSS-technologies in testing automotive ADAS-system

2021 ◽  
pp. 16-22
Author(s):  
Keyword(s):  
Measuring Equipment ◽  
Control Function ◽  
Testing System ◽  
Navigation Systems ◽  
Cruise Control ◽  
State Technical ◽  
Light Commercial Vehicle ◽  
Differential Corrections ◽  
Global Navigation Systems ◽  
Modern Technologies

In this article modern technologies are reviewed, they are used in testing ADAS systems, the principle of which is based on the use of global navigation systems (GNSS) and the using of differential corrections. The specialists of the Nizhny Novgorod State Technical University n. a. R. E. Alekseev have developed a schematic diagram in which Racelogic measuring equipment is used. The performance of the testing system was verified during tests of a bus based on a light commercial vehicle GAZelle Next while simulating the operation of the adaptive cruise control function. In the conclusion, graphs of a number of measured parameters are presented, the nature of the change in time confirms the correct functioning of the measuring equipment. Keywords: GNSS, Glonass, GPS, ADAS, testing, radiocommunication, RTK

The PPP data processing algorithm to create geodetic networks

2021 ◽  
pp. 464-468
Author(s):  
A.D. Tikhonov ◽  
A.A. Kochiev
Keyword(s):  
Data Processing ◽  
Processing Algorithm ◽  
Navigation Systems ◽  
Geodetic Networks ◽  
Data Processing Algorithm ◽  
Global Navigation ◽  
Global Navigation Systems

The article deals with determination of coordinates using global navigation systems, and application of the PPP data processing algorithm to obtain coordinates. The authors conducted an experiment illustrating the algorithm accuracy.

scholarly journals Assessment of the Implementation of GNSS into Gliding

2017 ◽  
Vol 5 (4) ◽  
pp. 6
Author(s):  
Tomáš Kubáč ◽  
Jakub Hospodka
Keyword(s):  
Global Navigation Satellite Systems ◽  
Navigation Satellite ◽  
Navigation Systems ◽  
Satellite Systems ◽  
Global Navigation ◽  
Global Navigation Satellite ◽  
Global Navigation Systems ◽  
Usage Preference ◽  
Selection Of ◽  
Wide Usage

Global navigation satellite systems are increasingly part of our lives and many industries including aviation. Glider flying is no exception in this trend. Global navigation satellite systems were part of gliding since the early 1990s. First as official recording devices for simple evidence of sporting performances, then as navigation systems, anti-collision systems and emergency location transmitters. Development of recording application was initiated and supported by International Gliding Commission of World Air Sports Federation in way of certifications for flight recorders. The use of navigation and other modern instruments in gliders has brought many benefits but also risks. However, the advantages outweigh the disadvantages and these systems are now integral part of gliding. With this wide usage of global navigation satellite systems devices, there is great many possibilities how and in which way one can use these systems. Pilots must orient themselves in varied selection of products, which they can use to choose one solution, that fits him. Therefore, to find out how and if pilots use these devices, we created questionnaire survey among 143 Czech glider pilots. We found out, that 84% of them are using global navigation satellite systems devices for official record of flight and for navigation as well. More than half of pilots is using free, not built-in devices. Most common devices are mobile phones up to 5 inches of screen diagonal in combination with approved flight recorder without display. If pilots use mobile device for navigation, 52% of them is using one with Windows Mobile operating system, 33% use Android. Navigational software on these mobile devices is then almost tied between SeeYou Mobile, XCSoar and LK8000. Knowledge about usage preference of global navigation systems devices should help pilots with selection and overall orientation in subject.

scholarly journals Selected Aspects of Navigation System Synthesis for Increased Flight Safety, Protection of Human Lives, and Health

2020 ◽  
Vol 17 (5) ◽  
pp. 1550 ◽  
Author(s):  
Milan Džunda ◽  
Peter Dzurovčin ◽  
Ivan Koblen ◽  
Stanislav Szabo ◽  
Edina Jenčová ◽  
...  
Keyword(s):  
Public Health ◽  
Computer Technology ◽  
Navigation System ◽  
Measuring Equipment ◽  
Air Transport ◽  
Flight Safety ◽  
Navigation Systems ◽  
Safety Protection ◽  
Transport Safety ◽  
The Impact

Accurate navigation systems allow us to optimize the trajectory of flying objects and thus solve environmental problems in aviation and their impact on public health. In this paper, we present one of the methods of assessment of accuracy and resistance to interference of distance-measuring equipment (DME). By using computer technology, the method enables us to determine the potential but also the real error measuring the distance of the flying object from DME. The credibility of the respective results of the solution on the task of DME optimal rangefinder synthesis depends on the accuracy of the previous data used, i.e., mathematical models of the respective flying objects flight dynamics, useful signals, and their parameters and interference. DME systems have an impact on air transport safety, and therefore the impact of interference on their operation must be investigated.

Global Navigation Systems

2010 ◽  
pp. 43-73
Author(s):  
Francisco Rovira Más ◽  
Qin Zhang ◽  
Alan C. Hansen
Keyword(s):  
Navigation Systems ◽  
Global Navigation ◽  
Global Navigation Systems

ADAPTIVE TESTING AS A TOOL FOR MANAGING QUALITY OF EDUCATION

2018 ◽  
pp. 27-33
Author(s):  
M. V. Tomashev ◽  
A. S. Avdeev ◽  
M. V. Krasnova
Keyword(s):  
Adaptive Testing ◽  
Assessment Method ◽  
Testing System ◽  
Test Results ◽  
State Technical ◽  
Advantages And Disadvantages ◽  
Testing Algorithm ◽  
Comparison Of The Results ◽  
The Given

The article presents the results of the use of adaptive testing in higher education institutions with the example of the LMS Stimul implemented in Polzunov Altai State Technical University. The advantages and disadvantages of testing as an assessment method are considered. On the base of analysis of modern educational trends, the conclusion is made about the relevance of the issue of adaptive testing, taking into account the personal mastering of the material by the student. A description of a testing system that making a permanent adaptation of the test to customize the test for the knowledge of a particular student is given. The variant of the adaptive testing algorithm is given. A comparison of the results obtained using the conventional test and the adaptive test is described. Analysis of the test results is carried out in the context of topics, categories and types of questions. Based on the given examples, a conclusion is made on the effectiveness of adaptive testing.

Diagnosing refraction properties of troposphere over land using global navigation systems

2010 ◽  
Vol 53 (7) ◽  
pp. 341-347 ◽  
Author(s):  
V. N. Gudkov ◽  
V. I. Lutsenko ◽  
I. V. Lutsenko ◽  
N. X. Anh
Keyword(s):  
Navigation Systems ◽  
Global Navigation ◽  
Global Navigation Systems ◽  
Land Using

scholarly journals Altitude on Cartographic Materials and Its Correction According to New Measurement Techniques

2021 ◽  
Vol 13 (3) ◽  
pp. 444
Author(s):  
Kamil Maciuk ◽  
Michał Apollo ◽  
Joanna Mostowska ◽  
Tomáš Lepeška ◽  
Mojca Poklar ◽  
...  
Keyword(s):  
Measurement Techniques ◽  
Satellite System ◽  
Navigation Systems ◽  
Direct Measurements ◽  
Global Positioning ◽  
The Subject ◽  
Printed Materials ◽  
Global Navigation Satellite ◽  
Modern Technologies

Determining the correct height of mountain peaks is vital for tourism, but it is also important as a reference point for devices equipped with GPS (Global Positioning System), e.g., watches or car navigation systems. The peak altitude data are part of geographic and geodetic information. As more modern technologies and equipment become available, their precisions should increase. However, verification of peak heights is usually only conducted for the highest, well-known mountains—lower peaks or mountain passes are rarely verified. Therefore, this study focuses on an investigation of 12 altitude points on a section of the longest and most famous touristic trail in Poland (the Main Beskid Trail), located in the Orava–Żywiec Beskids Mts (Mountains). The aim of this research is to measure and verify the heights of the 12 selected mountain peaks, in addition to evaluating the chosen methods based on the quality of the obtained data and determining their suitability and opportunities for use in further research. Measurements were obtained at the most specific height points—on the 12 highest points of the summits. This study compares two modern measurement techniques: the global navigation satellite system (GNSS) and light detection and ranging (LiDAR). The obtained results were later compared with those widely used on the internet and in printed materials (period covered: 1884–2015). This analysis demonstrates that lesser-known objects are rarely the subject of remeasurement and significant altitude errors may occur, primarily because the heights originated from a source in the past when modern methods were not available. Our findings indicate that the heights of the peaks presented in cartographic materials are inaccurate. The assumed heights should be corrected by direct measurements using modern techniques.

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