In this paper, an innovative inertial navigation system (INS) mechanization and the associated Kalman filter (KF) are developed to implement a fine alignment for the strapdown INS (SINS) on stationary base. The improved mechanization is established in the pseudo-geographic frame, which is rebuilt based on the initial position. The new mechanization eliminates the effects of linear movement erro...

The FAA Alternative Positioning Navigation and Timing (APNT) effort is developing technologies to provide navigation service capable of sustaining operations in the event of the loss of Global Navigation Satellite Systems (GNSS). APNT will utilize existing ground infrastructure to support this capability. One effort is to examine the use of the Automatic Dependent Surveillance Broadcast (ADSB) ...

mobile robot navigation is one of the basic problems in robotics. in this paper, a new approachis proposed for autonomous mobile robot navigation in an unknown environment. the proposedapproach is based on learning virtual parallel paths that propel the mobile robot toward the trackusing a multi-layer, feed-forward neural network. for training, a human operator navigates themobile robot in some...

A discomforting reality has materialized on the transportation scene: our existing air and ground infrastructures will not scale to meet our nation’s 21PP century demands and expectations for mobility, commerce, safety, and security. The consequence of inaction is diminished quality of life and economic opportunity in the 21PP century. Clearly, new thinking is required for transportation that c...

Positioning, Navigation, and Timing (PNT) services are the key basis for the provision of both essential (safety and security) and economically beneficial applications worldwide in the 21 century. Whether users are groundbased or sea-based or in the air, their primary/go to source of P and N and T is a Global Navigation Satellites System (GNSS). While the transition of various users/modes of tr...

In order to maximize the Common Operational Picture, interactive displays of large-scale complex computerrendered environments must allow for effective navigational techniques. This is no small challenge, given the current state of virtual environment technology, 3D input devices, and limited knowledge regarding human factors-based best practices for human way-finding and navigation. In theory,...

Inertial navigation systems are of the most important and practical systems in determining the velocity, position and attitude of the vehicles and different equipment. In these systems, three accelerometers and three gyroscopes are used to measure linear accelerations and angular velocities of vehicles, respectively. By using the output of these sensors and special inertial algorithms in differ...

In this study, the problem of navigation in dynamic and unknown environment is investigated and a navigation method based on force field approach is suggested. It is assumed that the robot performs navigation in...

Applying low-cost sensors for the Guidance, Navigation and Control (GNC) of an autonomous Uninhibited Aerial Vehicle (UAV) is an extremely challenging area. This paper presents the real-time results of applying a low-cost Inertial Measurement Unit (IMU) and Global Positioning System (GPS) receiver for the GNC. The INS/GPS navigation loop provides continuous and reliable navigation solutions to ...

This paper describes the design of a lighter than air autonomous robot and its natural landmark navigation system that operates in three dimensions. The robot has successfully flown the University banner at science shows and open days under public scrutiny. The robot is nearly 2m long and 0.8m wide, making the robot suitable for use in indoor environments. The robot may be programmed to fly a c...