Results 11 to 20 of about 2,653,958 (217)

Fundamentals of training navigators of ships flying foreign flags when entering the inland waterways of the Russian Federation [PDF]

open access: yesE3S Web of Conferences, 2022
Navigation on inland waterways, such as rivers, canals, fairways via reservoirs and lakes is performed under conditions of a minimum under the keel clearance, hydrodynamic interaction between the ship's hull and underwater limits of the fairway, and the ...
Karetnikov Vladimir   +3 more
doaj   +2 more sources

Prospective of an Inland Waterway System of Shipping Canals in Skikda (Algeria)

open access: yesUrban Planning, 2023
Sustainable development projects require careful balancing of economic interests and ecological needs. The case of Skikda, a city in northeast Algeria, located on the Mediterranean coast, illustrates the challenges connected with such a development.
Amira Ghennaï, Said Madani, Carola Hein
doaj   +2 more sources

ROSEBUD: A Deep Fluvial Segmentation Dataset for Monocular Vision-Based River Navigation and Obstacle Avoidance. [PDF]

open access: yesSensors (Basel), 2022
Obstacle detection for autonomous navigation through semantic image segmentation using neural networks has grown in popularity for use in unmanned ground and surface vehicles because of its ability to rapidly create a highly accurate pixel-wise ...
Lambert R   +3 more
europepmc   +2 more sources

Navigator Notes: Editorial Highlights from the Editor-in-Chief

open access: yesNavigation, 2022
Welcome to the Spring 2022 issue of NAVIGATION – our first issue since transitioning to an open access journal at the beginning of the year. As I mentioned in “Navigator Notes” in the Winter 2021 issue, all journal articles from now on will be available ...
Richard B. Langley
doaj   +3 more sources

Structural health monitoring of inland navigation structures and ports: a review on developments and challenges

open access: yesStructural Health Monitoring, 2023
Inland navigation structures (INS) facilitate transportation of goods in rivers and canals. Transportation of goods over waterways is more energy efficient than on roads and railways. INS, similar to other civil structures, are aging and require frequent
P. Negi   +3 more
semanticscholar   +1 more source

On Enhanced PPP with Single Difference Between-Satellite Ionospheric Constraints

open access: yesNavigation, 2022
Applications of precise point positioning (PPP) are limited by PPP’s long convergence time. One effective way to shorten the convergence time is to apply ionospheric constraints because of the external ionospheric information.
Yan Xiang   +5 more
doaj   +1 more source

Coherent Combining and Long Coherent Integration for BOC Signal Acquisition under Strong Interference

open access: yesNavigation, 2022
A coherent combining and long coherent integration (CCLCI) scheme is presented for standalone direct acquisition of binary offset carrier (BOC) signals under strong radio frequency interference (RFI).
Chun Yang   +3 more
doaj   +1 more source

Multi-Epoch 3D-Mapping-Aided Positioning using Bayesian Filtering Techniques

open access: yesNavigation, 2022
The performance of different filtering algorithms combined with 3D-mapping-aided (3DMA) techniques is investigated in this paper. Several single- and multi-epoch filtering algorithms were implemented and then tested on static pedestrian navigation data ...
Qiming Zhong, Paul D. Groves
doaj   +1 more source

AGPC-SLAM: Absolute Ground Plane Constrained 3D Lidar SLAM

open access: yesNavigation, 2022
3D lidar-based simultaneous localization and mapping (SLAM) is a well-recognized solution for mapping and localization applications. However, the typical 3D lidar sensor (e.g., Velodyne HDL-32E) only provides a very limited field of view vertically. As a
Weisong Wen, Li-Ta Hsu
doaj   +1 more source

Modified CEMIC Scheme for Multiplexing Signals Over Single Frequency Band

open access: yesNavigation, 2022
The paper presents a modified Constant Envelope Multiplexing with Intermodulation Construction (CEMIC) technique for multiplexing signals within a single frequency band.
Vijay Singh Bhadouria   +3 more
doaj   +1 more source

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