This paper reports on an integrated navigation algorithm for the visual simultaneous localization and mapping (SLAM) robotic area coverage problem. In the robotic area coverage problem, the goal is to explore and map a given target area within a reasonable amount of time. This goal necessitates the use of minimally redundant overlap trajectories for coverage efficiency; however, visual SLAM’s n...

This paper presents Loran signal processing results for a series of successively smaller H‐ field square‐loop antennas input to a preliminary design of low‐noise‐optimized, low‐ frequency ASIC. Antennas as small as 5cm (2‐inches) on a side are able to detect Loran signals both outdoors and indoors, although in some cases significantly attenuated compared to signals from a larger 50cm (20‐inch)...

INS/GPS integrated navigation system is studied in this paper for the hypersonic UAV in order to satisfy the precise guidance requirements of hypersonic UAV and in response to the defects while the inertial navigation system (INS) and the global positioning system (GPS) are being applied separately. The information of UAV including position, velocity and attitude can be obtained by using INS an...

The traditional celestial navigation system(CNS) is used the moon, stars, and planets as celestial guides. Then the star tracker(i.e. track one star or planet or angle between it) and star sensor(i.e. sense many star simultaneous) be used to determine the attitude of the spacecraft. Pulsar navigation also be introduced to CNS. Maser is another interested celestial in radio astronomy which has s...

An autonomous navigation algorithm using the sensor that integrated the star sensor (FOV1) and ultraviolet earth sensor (FOV2) is presented. The star images are sampled by FOV1, and the ultraviolet earth images are sampled by the FOV2. The star identification algorithm and star tracking algorithm are executed at FOV1. Then, the optical axis direction of FOV1 at J2000.0 coordinate system is calc...

This paper presents two new types of markers of MCubITS (M-sequence Multimodal Markers for ITS; M-Cubed for ITS) that is a ground-based positioning system, in order to advance the WYSIWYAS (What You See Is What You Are Suggested) navigation environments providing intuitive guidance. One of the new markers uses warning blocks of textured paving blocks that are often at important points as for pe...

We present an original navigation approach to explore data in the framework of the semantic web. Before navigation, data are represented and integrated by jointly using Topic Maps and description logics. Our navigation approach improves the traditional web navigation with two specificities. First, the navigation paths are semantic instead of structural links. Second, it is a subject-centric ins...

Although satellite navigation, mainly based on the U.S. GPS, plays an important role in positioning and navigation tasks and although there are efforts to establish new satellite-based navigation systems like the European Galileo, the reliability and availability of these systems cannot satisfy all requirements of today’s navigation. Therefore, the navigation system of the future will likely co...

Particle filter based on particle swarm optimization algorithm (PSO-PF) is not precise and trapping in local optimum easily, it is not able to satisfy the requirement of advanced integrated navigation system. In order to solve these problems, a novel particle filter algorithm based on dynamic neighborhood population adaptive particle swarm optimization (DPSO-PF) is presented in this paper. This...