ЗАДАЧИ ПРАКТИЧЕСКОГО ПРИМЕНЕНИЯ ЛОКАЛЬНЫХ СИСТЕМ НАВИГАЦИИ

2020 ◽  
Vol 96 (3s) ◽  
pp. 12-17
Author(s):  
И.Л. Корнеев ◽  
В.А. Егоров
Keyword(s):  
Navigation System ◽  
Basic Parameter ◽  
Time Error ◽  
Local Navigation ◽  
Control Options

Рассмотрен вопрос о вариантах контроля формирования точности локальной системы навигации (ЛСН) с использованием ее базового параметра - момента приема рабочего сигнала в ЛСН. Приведены результаты измерения инструментальной временной погрешности разрабатываемой локальной системы навигации. The paper considers the question of control options for the formation of the accuracy of the local navigation system (LSN), using its basic parameter - the time of reception of the working signal in the LSN. The results of measuring the instrumental time error of the developed local navigation system have been presented.

Modeling of the rangefinding equipment of the radio navigation system of local navigation

2019 ◽  
Author(s):  
V. V. Shcherbinin ◽  
R. Sh. Zagidullin ◽  
G. A. Kvetkin ◽  
M. S. Sidorova
Keyword(s):  
Navigation System ◽  
Radio Navigation ◽  
Local Navigation ◽  
Radio Navigation System

scholarly journals Computer Simulation of Complex Electronic Systems of Navigation Systems

2020 ◽  
Vol 35 ◽  
pp. 04021
Author(s):  
Victor V. Shcherbinin ◽  
Ravil R. Zagidullin ◽  
Georgy A. Kvetkin ◽  
Marina S. Sidorova
Keyword(s):  
Computer Simulation ◽  
Navigation System ◽  
Electronic Equipment ◽  
Electronic Systems ◽  
Navigation Systems ◽  
Software Complex ◽  
Radio Electronic ◽  
Local Navigation ◽  
Using Data

The paper proposes ways to reduce the time and improve the quality of development of electronic equipment using computer simulation. The paper considers an example of the development and debugging of a radio-electronic module, which has found its direct application in a local navigation system that operates on the basis of the method of point landmarks. The paper considers a hardware-software complex for the implementation of the study of the health of both individual functional units and radio rangefinder equipment as a whole, as well as for the modernization of the radio-electronic module of the navigation system. The various computer simulation environments available today allow the development and design of electronic equipment at various levels. In the proposed work, computer simulation was carried out in MATLAB / Simulink, LabVIEW, Multisim and MicroCap. The work also provided for the possibility of using data collection and processing modules, which provides the opportunity in one software development and modeling environment to compare the results obtained using simulation modeling and physical research of the object. The result of the work is a hardwaresoftware kit of the radio-electronic module of the navigation system through which it is possible to evaluate the influence of various external influences on the accuracy of determining the range from the interrogator (moving object) to the transponder (stationary beacon).

Experimental Evaluation of UWB Local Navigation System Performance Used for Pedestrian and Vehicle Positioning in Outdoor Urban Environments

2021 ◽  
Author(s):  
Alexander A. Chugunov ◽  
Nikita I. Petukhov ◽  
Alexander P. Malyshev ◽  
Vladimir B. Pudlovskiy ◽  
Oleg V. Glukhov ◽  
...  
Keyword(s):  
Navigation System ◽  
Experimental Evaluation ◽  
System Performance ◽  
Urban Environments ◽  
Local Navigation ◽  
Vehicle Positioning

Application of genetic algorithm for determining the locations of reference points of local navigation system and minimizing their number

2021 ◽  
pp. 27-40
Author(s):  
N.I. Petukhov ◽  
D.V. Tsaregorodtsev ◽  
R.S. Kulikov ◽  
A.P. Malyshev
Keyword(s):  
Genetic Algorithm ◽  
Navigation System ◽  
Development Time ◽  
Reference Points ◽  
Optimal Result ◽  
Location Optimization ◽  
Local Navigation ◽  
Geometric Dilution Of Precision ◽  
The Cost ◽  
First Time

In this paper, the problem of minimization of the number of local navigation system (LNS) reference points (RPs) and RPs’ location optimization is posed according to the criterion of ensuring the factor of geometric dilution of precision (GDOP) averaged over the space is not worse than a given one. According to authors’ best knowledge, this is the first time such a problem has been posed and solved. An approximate numerical solution to the problem based on a genetic algorithm is proposed. The effectiveness of the proposed method is assessed by simulating the placement of a different number of ranging LNS RPs in rooms of various configurations and comparing the result with the quasi-optimal result of a complete numerical search of all possible locations of the LNS anchors. The conclusion is made on the applicability of the proposed method for solving the problem and the prospects of building on its basis a tool for automating the development of positional LNS to reduce the development time and the cost of infrastructure.

scholarly journals Active low-element antenna array for local navigation system

2019 ◽  
Vol 30 ◽  
pp. 05031
Author(s):  
Igor Shirokov ◽  
Elena Shirokova ◽  
Igor Serdyuk ◽  
Anna Mordvinova
Keyword(s):  
Antenna Array ◽  
Navigation System ◽  
Active Antenna ◽  
Local Navigation ◽  
Comparative Results ◽  
Element Array ◽  
Selection Of

The principles of constructing an active low-element antenna array for a local navigation system are presented. The results of calculation and modeling of a low-element lattice are presented. The selection of the parameters of the antenna array is produced. Comparative results of modeling a low-element array with passive and active antenna elements are presented.

Automatic training method applied to a WiFi+ultrasound POMDP navigation system

Robotica ◽  
2009 ◽  
Vol 27 (7) ◽  
pp. 1049-1061 ◽  
Author(s):  
M. Ocaña ◽  
L. M. Bergasa ◽  
M. A. Sotelo ◽  
R. Flores ◽  
D. F. Llorca ◽  
...  
Keyword(s):  
Navigation System ◽  
Autonomous Navigation ◽  
A Priori ◽  
Training Method ◽  
Local Navigation ◽  
Markov Decision ◽  
Partially Observable ◽  
The University ◽  
Robot Position ◽  
Localization Systems

SUMMARYThis paper presents an automatic training method based on the Baum–Welch algorithm (also known as EM algorithm) and a robust low-level controller. The method has been applied to the indoor autonomous navigation of a surveillance robot that utilizes a WiFi+Ultrasound Partially Observable Markov Decision Process (POMDP). This method uses a robust local navigation system to automatically provide some WiFi+Ultrasound maps. These maps could be employed within probabilistic global robot localization systems. These systems use a priori probabilistic map in order to estimate the global robot position. The method has been tested in a real environment using two commercial Pioneer 2AT robotic platforms in the premises of the Department of Electronics at the University of Alcalá. Some experimental results and conclusions are presented.

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