Space-based positioning, navigation, and timing (PNT) technologies, such as the global
navigation satellite systems (GNSS) provide position, velocity, and timing information to an …

Information fusion strategies for vehicles navigating while aiding their inertial navigation
systems (INSs) with terrestrial signals of opportunity (SOPs) are developed and studied. The …

This article proposes a robust and precise localization scheme for unmanned ground
vehicle (UGV) in global positioning system (GPS)-denied and GPS-challenged …

In this article, we present a stereo visual inertial pose estimation method based on
feedforward and feedbacks. Compared to the widely used filter-based or optimization-based …

We aim at develo** autonomous miniature hov-ering flying robots capable of navigating in
unstructured GPS-denied environments. A major challenge is the miniaturization of the …

There is a large amount of research currently being done on autonomous micro-aerial
vehicles (MAV), such as quadrotor helicopters or quadcopters. The ability to create a …

This paper studies vision-aided inertial navigation of small-scale unmanned aerial vehicles
(UAVs) in GPS-denied environments. The objectives of the navigation system are to firstly …

We aim at develo** autonomous miniature hovering flying robots capable of navigating in
unstructured GPS-denied environments. A major challenge is the miniaturization of the …

The accuracy and availability of Global Navigation Satellite Systems (GNSS) has
revolutionized navigation. As a result, world‐wide, meter‐level positioning is required for …

Significant improvements in the accuracy of navigation state estimation have been
previously demonstrated through the fusion of inertial measurement unit (IMU) and visual …