Results 51 to 60 of about 252,409 (330)
Italian National Conference on Sensors, 2014 The integrated navigation system with strapdown inertial navigation system (SINS), Beidou (BD) receiver and Doppler velocity log (DVL) can be used in marine applications owing to the fact that the redundant and complementary information from different ...
Wei Gao, Ya Zhang, J. Wang
semanticscholar +1 more source
IEEE Transactions on Industrial Informatics, 2023 In the leader–follower-based multiple underwater unmanned vehicles (UUVs) cooperative positioning system, the precision of the compass and Doppler velocity log equipped with the follower UUV is low, which will inevitably lead to yaw error and velocity ...
Qingxin Wang +5 more
semanticscholar +1 more source
IET Radar, Sonar & Navigation, 2022 A translational motion estimation and compensation method is proposed based on the parametric method by multiple stations in the distributed inverse synthetic aperture radar (ISAR) imaging.
Junqiu Zhang, Yong Wang
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Observation of the Rotational Doppler Effect With Structured Beams in Atomic Vapor
Frontiers in Physics, 2022 A vector beam with the spatial variation polarization has attracted keen interest and is progressively applied in quantum information, quantum communication, precision measurement, and so on.
Shuwei Qiu +6 more
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Observation of Collective-Emission-Induced Cooling inside an Optical Cavity
, 2002 We report the observation of collective-emission-induced, velocity-dependent light forces. One third of a falling sample containing 3 x 10^6 cesium atoms illuminated by a horizontal standing wave is stopped by cooperatively emitting light into a ...
A. E. Siegman +13 more
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The morpho-kinematics of the circumstellar envelope around the AGB star EP Aqr [PDF]
, 2019 ALMA observations of CO(1-0) and CO(2-1) emissions of the circumstellar envelope of EP Aqr, an oxygen-rich AGB star, are reported. A thorough analysis of their properties is presented using an original method based on the separation of the data-cube into
Bertre, T. Le +8 more
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A Novel Adaptive Two-Stage Information Filter Approach for Deep-Sea USBL/DVL Integrated Navigation
Sensors, 2020 An accurate observation model and statistical model are critical in underwater integrated navigation. However, it is often the case that the statistical characteristics of noise are unknown through the ultra-short baseline (USBL) system/Doppler velocity ...
Kaifei He, Huimin Liu, Zhenjie Wang
doaj +1 more source
Magnetic Structure of Umbral Dots Observed with Hinode Solar Optical Telescope
, 2008 High resolution and seeing-free spectroscopic observation of a decaying sunspot was done with the Solar Optical Telescope aboard Hinode satellite. The target was NOAA 10944 located in the west side of the solar surface from March 2 to March 4, 2007.
Ichimoto, Kiyoshi +3 more
core +1 more source
Single camera 3D planar Doppler velocity measurements, using two frequency planar Doppler velocimetry (2v-PDV) and imaging fibre bundles [PDF]
, 2006 A modified Planar Doppler Velocimetry (PDV) technique, two frequency PDV (2v-PDV), is described that allows measurements of the velocity field over a plane defined by a laser light sheet using sequential illumination of the flow with two closely ...
Charrett, Thomas O. H. +2 more
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Journal of Clinical Imaging Science, 2018 Objective: Determination of the amount of parenchymal damage in nonalcoholic fatty liver disease (NAFLD) is crucial to choose the best treatment and management.
Ahmad Alizadeh +6 more
semanticscholar +1 more source