There are many aerial missions in hostile urban and indoor environments where human intervention is considered difficult or dangerous. Accomplishment of such missions require use of unmanned autonomous aerial vehicles (UAV). Unmanned air vehicles for such missions must be equipped with a fully autonomous navigation system. Many methods that have been proposed for navigation of autonomous system...

Obviously navigation is one of the most complicated issues in mobile robots. Intelligent algorithms are often used for error handling in robot navigation. This Paper deals with the problem of Inertial Measurement Unit (IMU) error handling by using Extended Kalman Filter (EKF) as an Expert Algorithms. Our focus is put on the field of mobile robot navigation in the 2D environments. The main chall...

This article proposes an inertial navigation algorithm intended to lower the negative consequences of absence GNSS (Global Navigation Satellite System) signals on autonomous fixed wing low SWaP (Size, Weight, and Power) UAVs (Unmanned Air Vehicles). In addition accelerometers gyroscopes, filter takes advantage sensors usually present onboard these platforms, such as magnetometers, Pitot tube, a...

Published in The Air & Space Lawyer, Volume 25, Number 4, 2013. © 2013 by the American Bar Association. Reproduced with permission. All rights reserved. This information or any portion thereof may not be copied or disseminated in any form or by any means or stored in an electronic database or retrieval system without the express written consent of the American Bar Association. The United States...

the aim of the present study was to evaluate the effect of melatonin as an antioxidant on spatial navigation memory in male diabetic rats. thirty-two male white wistar rats weighing 200 ± 20 g were divided into four groups, randomly: control, melatonin, diabetic and melatonin-treated diabetic. experimental diabetes was induced by intraperitoneal injection of 50 mg kg-1 streptozotocin. melatonin...

Abstract In the transition towards space-based air navigation, reliance on Global Navigation Satellite Systems (GNSS) is increasing. However, GNSS disruptions and interference can cause GPS loss in cockpit. The purpose of this paper to assess impact vulnerabilities, especially interference, aircraft operations. data used for analysis was collected by monitoring stations installed at two Romania...

Abstract This study is an exploratory study, which was conducted in relation to the of proficiency and performance Iranian Air Traffic Controllers: attitude, work experience, specific Aviation English courses. Few studies have been this field. The Courses Iran are very similar Content-Based Language Training (CBLT) To end, participants were 278 ATCOs who selected from 1000 based on Cochran form...

Today, wireless technology forms the communications backbone of many industries—including aviation, transportation, government, and defense. The era of the Next Generation Air Transportation System, (NextGen), is upon us. The Federal Aviation Administration, in collaboration with industry, is deploying NextGen technology on the ground, in the air, at air traffic control facilities and in the co...