Results 11 to 20 of about 1,125,833 (284)
Sensors, 2016 This paper researches an AUV (Autonomous Underwater Vehicle) positioning method based on SINS (Strapdown Inertial Navigation System)/LBL (Long Base Line) tightly coupled algorithm.
Tao Zhang +4 more
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A Wideband Circularly Polarized Tightly Coupled Array [PDF]
IEEE Transactions on Antennas and Propagation, 2018 Tightly coupled arrays (TCA) have received considerable\ud interests recently. Although various TCAs have been reported, they are\ud limited to single or dual linear polarizations. Considering the importance of\ud circular polarization (CP) in various wireless systems, it is meaningful to\ud design a CP TCA with a simple configuration.
Long Zhang, Steven Gao, Qi Luo
exaly +3 more sources
Tightly Coupled INS/APS Passive Single Beacon Navigation
Remote Sensing, 2023 Unlike aerial or terrestrial navigation, the global navigation satellite system (GNSS) is not available underwater. This is a big challenge for underwater navigation.
Zhuoyang Zou +4 more
doaj +2 more sources
Tightly coupled resonant pairs as metamaterial constituents [PDF]
2009 International Conference on Electromagnetics in Advanced Applications, 2009 The distinctive features and properties of metamaterials containing the constitutive particles composed of tightly coupled pairs of the dogbone shaped conductors and planar spirals are discussed. The results of the full-wave simulations and measurements of the scattering characteristics of such arrays will be presented to illustrate the main concepts ...
Schuchinsky, AG +2 more
openaire +5 more sources
Research on a Visual/Ultra-Wideband Tightly Coupled Fusion Localization Algorithm [PDF]
SensorsIn the autonomous navigation of mobile robots, precise positioning is crucial. In forest environments with weak satellite signals or in sites disturbed by complex environments, satellite positioning accuracy has difficulty in meeting the requirements of ...
Pin Jiang +6 more
doaj +2 more sources
A Wideband Tightly Coupled Array for Omnidirectional Pattern Synthesis
International Journal of Antennas and Propagation, 2022 This work presents the design of a wideband circular tightly coupled array for omnidirectional pattern generation. The proposed array works over an 8:1 bandwidth, providing very high performance in terms of active reflection coefficient, realized gain ...
Manuel Luciarini +5 more
doaj +2 more sources
Tightly-Coupled Vehicle Positioning Method at Intersections Aided by UWB [PDF]
Sensors, 2019 Reliable and precise vehicle positioning is essential for most intelligent transportation applications as well as autonomous driving. Due to satellite signal blocking, it can be challenging to achieve continuous lane-level positioning in GPS-denied ...
Huaikun Gao, Xu Li
doaj +2 more sources
RFG-TVIU: robust factor graph for tightly coupled vision/IMU/UWB integration [PDF]
Frontiers in NeuroroboticsHigh precision navigation and positioning technology, as a fundamental function, is gradually occupying an indispensable position in the various fields. However, a single sensor cannot meet the navigation requirements in different scenarios.
Gongjun Fan +3 more
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Semi-Resistive Approach for Tightly Coupled Dipole Array Bandwidth Enhancement
IEEE Open Journal of Antennas and Propagation, 2021 A new approach to enhance the bandwidth of Tightly Coupled Dipole Arrays (TCDA) is presented. The new design achieves the integration of a semi-resistive Frequency Selective Surface network (FSS) composed of a non-resistive low-pass FSS and two resistive
Maxence Carvalho +3 more
doaj +3 more sources
Sensors, 2018 This paper implements and analyzes a tightly coupled single-frequency global navigation satellite system precise point positioning/inertial navigation system (GNSS PPP/INS) with insufficient satellites for land vehicle navigation using a low-cost GNSS ...
Yue Liu, Fei Liu, Yang Gao, Lin Zhao
doaj +3 more sources