Results 51 to 60 of about 14,076 (241)
Precoding in Multigateway Multibeam Satellite Systems [PDF]
IEEE Transactions on Wireless Communications, 2016 This paper considers a multigateway multibeam satellite system with multiple feeds per beam. In these systems, each gateway serves a set of beams (cluster) so that the overall data traffic is generated at different geographical areas. Full frequency reuse among beams is considered so that interference mitigation techniques are mandatory.
Vahid Joroughi +2 more
openaire +6 more sources
Raw multibeam EM122 data of Maria S. Merian cruise MSM43 (North Atlantic) [PDF]
, 2020 Latitude/Longitude extracted from DSHIP. Data acquisition was performed using a multibeam sonar system Simrad EM-122 from Kongsberg. Raw data are delivered within Simrad current multibeam vendor format. SIMRAD raw data can be processed i.e.
Augustin, Nico +3 more
core +1 more source
AUV Navigation Correction Based on Automated Multibeam Tile Matching
Sensors, 2022 Ocean science and hydroacoustic seafloor mapping rely on accurate navigation underwater. By exploiting terrain information provided by a multibeam echosounder system, it is possible to significantly improve map quality. This article presents an algorithm
Jochen Mohrmann, Jens Greinert
doaj +1 more source
In Situ Two‐Dimensional Residual Stress Characterization of Thin Films
Advanced Materials Technologies, EarlyView.An integrated in situ curvature metrology platform combining speckle‐based curvature optical metrology (SCOM) with multi‐beam optical sensors (MOS) enables spatially resolved two‐dimensional curvature mapping of thick sputtered coatings. The SCOM technique provides excellent agreement with MOS while providing an extended measurable curvature range ...
Wai Jue Tan +6 more
wiley +1 more source
3x3 Multibeam Network for a Triangular Array of Three Radiating Elements [PDF]
, 2011 A multibeam antenna study based on Butler network will be undertaken in this document. These antenna designs combines phase shift systems with multibeam networks to optimize multiple channel systems.
Novo Garcia, A. +3 more
core +1 more source
Scanning Parametric Sediment Echosounder as Tool for Underwater Archaeological Prospection
Archaeological Prospection, EarlyView.ABSTRACT Underwater cultural heritage 3D prospection techniques, especially for remains that are partly buried in the ground, are only very rarely available and often can only be applied with considerable technical effort. To overcome this limitation, we evaluate a methodological adaption of widely used and available single channel parametric sediment ...
Dennis Wilken +5 more
wiley +1 more source
Multibeam bathymetric survey defines coelacanth habitat [PDF]
, 2002 Marine GeoSolutions (Pty) Ltd was contracted by the National Research Foundation (NRF) of South Africa to undertake a multibeam bathymetric survey of the northern KwaZulu-Natal submarine canyon system to define potential coelacanth habitats for the SA ...
Miller, Warwick R., Ramsay, Peter J.
core
Autosub6000: a deep diving long range AUV [PDF]
, 2008 With an ultimate range up to 1000 km, a maximum operating depth of 6000 m, and a generous payload capacity, Autosub6000 is well placed to become one of the world's most capable deep diving Autonomous Underwater Vehicles (AUVs).
McPhail, Stephen
core +2 more sources
FlexMat, EarlyView.Abstract Soft robots, engineered from highly compliant materials, offer superior adaptability and safety in unstructured environments compared to their rigid counterparts. Recent advancements, fueled by bio‐inspiration and material programmability, have led to the rapid co‐evolution of their core modules: actuation, sensing, protection, energy, and ...
Qiulei Liu +3 more
wiley +1 more source
A novel approach for in situ benthic habitat characterization
Limnology and Oceanography: Methods, EarlyView.Abstract Habitat heterogeneity is a key driver of temporal and spatial variability of subtidal marine benthic biodiversity. However, this makes it a challenging environment in which to measure and quantify the factors driving biodiversity in a consistent manner.
Ryan J. W. Mathews +4 more
wiley +1 more source