Evaluation of an autonomous navigation and positioning system for IAEA safeguards inspectors

2014 ◽  
Author(s):  
Dimitri Finker ◽  
John Kocjan ◽  
Joshua Rutkowski ◽  
Rui Cai
Keyword(s):  
Autonomous Navigation ◽  
Positioning System

scholarly journals An autonomous navigational system using GPS and computer vision for futuristic road traffic

2022 ◽  
Vol 12 (1) ◽  
pp. 179
Author(s):  
Prabha Ramasamy ◽  
Mohan Kabadi
Keyword(s):  
Computer Vision ◽  
Global Positioning System ◽  
Navigation System ◽  
Autonomous Navigation ◽  
Road Traffic ◽  
Positioning System ◽  
Traffic System ◽  
Global Positioning ◽  
Navigational System

Navigational service is one of the most essential dependency towards any transport system and at present, there are various revolutionary approaches that has contributed towards its improvement. This paper has reviewed the global positioning system (GPS) and computer vision based navigational system and found that there is a large gap between the actual demand of navigation and what currently exists. Therefore, the proposed study discusses about a novel framework of an autonomous navigation system that uses GPS as well as computer vision considering the case study of futuristic road traffic system. An analytical model is built up where the geo-referenced data from GPS is integrated with the signals captured from the visual sensors are considered to implement this concept. The simulated outcome of the study shows that proposed study offers enhanced accuracy as well as faster processing in contrast to existing approaches.

Global Positioning System (GPS) autonomous navigation

2002 ◽  
Author(s):  
M.P. Ananda ◽  
H. Bernstein ◽  
K.E. Cunningham ◽  
W.A. Feess ◽  
E.G. Stroud
Keyword(s):  
Global Positioning System ◽  
Autonomous Navigation ◽  
Positioning System ◽  
Global Positioning

Research and Design of Range Positioning System Based on Ultrasonic Sensor for Intelligent Mobile Robot

2011 ◽  
Vol 201-203 ◽  
pp. 1886-1890 ◽  
Author(s):  
Jun Han ◽  
Rui Li Chang
Keyword(s):  
Power Consumption ◽  
Mobile Robot ◽  
Obstacle Avoidance ◽  
Intelligent Control ◽  
Autonomous Navigation ◽  
Ultrasonic Sensor ◽  
Positioning System ◽  
Large Power ◽  
Research And Design ◽  
Important Branch

The technology of mobile robot is an important branch in robot research. In order to endow robot with capacity of intelligent control and autonomous navigation, and solve the problems such as high cost and large power consumption, a range positioning system based on ultrasonic sensor for intelligent mobile robot is designed in this paper. The system makes robot achieve some functions such as alarming, obstacle avoidance and the positioning.

Model of an alternative navigation system for high-precision weapons

2020 ◽  
pp. 154851292092195 ◽  
Author(s):  
Vitalii Savchenko ◽  
Volodymyr Tolubko ◽  
Liubov Berkman ◽  
Anatolii Syrotenko ◽  
Pavlo Shchypanskyi ◽  
...  
Keyword(s):  
High Precision ◽  
Global Positioning System ◽  
Navigation System ◽  
Autonomous Navigation ◽  
Least Squares Method ◽  
Positioning System ◽  
Navigation Systems ◽  
Navigation Support ◽  
Global Positioning ◽  
Global Navigation Systems

The article explores the problem of alternative navigation support for high-precision weapons that use guidance based on signals from global navigation systems. It proposes the use of an autonomous navigation system replacing satellite navigation in the case where major Global Positioning System-like systems are unavailable. It suggests the idea and the model of a moving navigation field that can move along the weapon trajectory. The model of accuracy for the pseudolite navigation system uses the least squares method as its basis. The study looks into the accuracy parameters of the moving navigation field. The results of the study show the advantages of a moving field when compared with a stationary navigation field in case of autonomous use. This research also shows the possibility of using an autonomous system for Special Forces, search and rescue operations, and robotic and unmanned aerial, ground, and sea-based vehicles.

scholarly journals Underwater Doppler Navigation with Self-calibration

2015 ◽  
Vol 69 (2) ◽  
pp. 295-312 ◽  
Author(s):  
Xianfei Pan ◽  
Yuanxin Wu
Keyword(s):  
Global Positioning System ◽  
Autonomous Navigation ◽  
Doppler Velocity ◽  
Positioning System ◽  
Combined System ◽  
Inertial Measurement ◽  
Global Positioning ◽  
Measurement Units ◽  
Underwater Navigation

Precise autonomous navigation remains a substantial challenge to all underwater platforms. Inertial Measurement Units (IMU) and Doppler Velocity Logs (DVL) have complementary characteristics and are promising sensors that could enable fully autonomous underwater navigation in unexplored areas without relying on additional external Global Positioning System (GPS) or acoustic beacons. This paper addresses the combined IMU/DVL navigation system from the viewpoint of observability. We show by analysis that under moderate conditions the combined system is observable. Specifically, the DVL parameters, including the scale factor and misalignment angles, can be calibrated in-situ without using external GPS or acoustic beacon sensors. Simulation results using a practical estimator validate the analytic conclusions.

scholarly journals Numerical Analysis of 2-D Positioned, Indoor, Fuzzy-Logic, Autonomous Navigation System Based on Chromaticity and Frequency-Component Analysis of LED Light

Sensors ◽  
2021 ◽  
Vol 21 (13) ◽  
pp. 4345
Author(s):  
Jae-Hoon Jeong ◽  
Kiwon Park
Keyword(s):  
Fuzzy Logic ◽  
Navigation System ◽  
Autonomous Navigation ◽  
Indoor Environment ◽  
Frequency Component ◽  
Component Ratio ◽  
Positioning System ◽  
Research Attention ◽  
Positioning Systems ◽  
Autonomous Navigation System

Topics concerning autonomous navigation, especially those related to positioning systems, have recently attracted increased research attention. The commonly available global positioning system (GPS) is unable to determine the positions of vehicles in GPS-shaded regions. To address this concern, this paper presents a fuzzy-logic system capable of determining the position of a moving robot in a GPS-shaded indoor environment by analyzing the chromaticity and frequency-component ratio of LED lights installed under the ceiling. The proposed system’s performance was analyzed by performing a MATLAB simulation of an indoor environment with obstacles. During the simulation, the mobile robot utilized a fuzzy autonomous navigation system with behavioral rules to approach targets successfully in a variety of indoor environments without colliding with obstacles. The robot utilized the x and y coordinates of the fuzzy positioning system. The results obtained in this study confirm the suitability of the proposed method for use in applications involving autonomous navigation of vehicles in areas with poor GPS-signal reception, such as in tunnels.

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