Results 41 to 50 of about 4,285,302 (266)

Global Navigation Satellite System Meta-Signals with an Arbitrary Number of Components

Remote Sensing
Global Navigation Satellite System (GNSS) meta-signals are obtained when components from different frequencies are jointly processed as a single entity.
Daniele Borio
doaj   +1 more source

A Meliorated Multi-Frequency Band Pyroelectric Sensor

Sensors, 2015
This article proposes a meliorated multi-frequency band pyroelectric sensor for detecting subjects with various velocities, namely extending the sensing frequency under good performance from electrical signals. A tactic, gradually increasing thickness of
Chun-Ching Hsiao, Sheng-Yi Liu, An-Shen Siao   +2 more
doaj   +1 more source

Multi-Frequency Vector Diffusion Maps

CoRR, 2019
We introduce multi-frequency vector diffusion maps (MFVDM), a new framework for organizing and analyzing high dimensional datasets. The new method is a mathematical and algorithmic generalization of vector diffusion maps (VDM) and other non-linear dimensionality reduction methods. MFVDM combines different nonlinear embeddings of the data points defined
Yifeng Fan, Zhizhen Zhao 0001
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RBF-Neural Network Applied to the Quality Classification of Tempered 100Cr6 Steel Cams by the Multi-Frequency Nondestructive Eddy Current Testing

Metals, 2017
This article proposes a Radial Basis Function Artificial Neural Network (RBF-ANN) to classify tempered steel cams as correctly or incorrectly treated pieces by using multi-frequency nondestructive eddy current testing.
Víctor Martínez-Martínez, Javier Garcia-Martin, Jaime Gomez-Gil   +2 more
doaj   +1 more source

Tesla's multi-frequency wireless radio controlled vessel

, 2008
A review of the Tesla’s contribution to dual-band wireless radio controlled vessel is presented. The intention of this paper is to describe multi-frequency remote controlled vessel using two transmitters and which operate a distant receiver which ...
Budimir, D., Marincic, A., Djuradj Budimir, Aleksandar Marincic   +3 more
core   +1 more source

Single-Epoch Ambiguity Resolution of a Large-Scale CORS Network with Multi-Frequency and Multi-Constellation GNSS

Remote Sensing, 2022
Ambiguity resolution at Continuously Operating Reference Station (CORS) network sites is the key step in the whole processing chain of Network Real Time Kinematic (NRTK).
Shengyue Ji, Guofeng Liu, Duojie Weng, Zhenjie Wang, Kaifei He, Wu Chen   +5 more
doaj   +1 more source

A Multi-Frequency Study of 3C 309.1

, 2003
To be published in the volume "Highlights of Spanish Astrophysics (III), Proceedings of the 5th Scientific Meeting of the Spanish Astronomical Society" of the Astrophysics and Space Science Library (Kluwer), J. Gallego, J. Zamorano, N.
Ros, E., Lobanov, A. P.
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Multi-frequency metasurface carpet cloaks

Optics Express, 2018
Metasurfaces provide an alternative way to design three-dimensional arbitrary-shaped carpet cloaks with ultrathin thicknesses. Nevertheless, the previous metasurface carpet cloaks work only at a single frequency. To overcome this challenge, we here propose a macroscopic metasurface carpet cloak.
Chan, Wang, Yihao, Yang, Qianghu, Liu, Dachuan, Liang, Bin, Zheng, Hongsheng, Chen, Zhiwei, Xu, Huaping, Wang   +7 more
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GNSS-IR Snow Depth Retrieval from Multi-GNSS and Multi-Frequency Data

Remote Sensing, 2021
Global navigation satellite system interferometric reflectometry (GNSS-IR) represents an extra method to detect snow depth for climate research and water cycle managing. However, using a single frequency of GNSS-IR for snow depth retrieval is often found
Jinsheng Tu, Haohan Wei, Rui Zhang, Lei Yang, Jichao Lv, Xiaoming Li, Shihai Nie, Peng Li, Yanxia Wang, Nan Li   +9 more
doaj   +1 more source

An optical fibre-based frequency dissemination network for Australia

, 2011
An optical-fibre network is being planned for distribution of optical and microwave reference frequencies in Australia. This network would connect a number of research facilities and the National Measurement Institute (NMI), allowing long-range ...
Luiten, A., Orr, B., Wouters, M., Gray, M., He, Y., Shaddock, D., Hsu, M., Warrington, R., Aben, G., Baldwin, K.   +9 more
core   +1 more source