Scale-Up Strategies for Processing High-Rate Data Streams in System S

2009 ◽  
Author(s):  
Henrique Andrade ◽  
Bugra Gedik ◽  
Kun-Lung Wu ◽  
Philip S. Yu
Keyword(s):  
Data Streams ◽  
Scale Up ◽  
High Rate ◽  
Rate Data

scholarly journals Mono Camera-Based Optical Vehicular Communication for an Advanced Driver Assistance System

Electronics ◽  
2021 ◽  
Vol 10 (13) ◽  
pp. 1564
Author(s):  
Md. Osman Ali ◽  
Md. Faisal Ahmed ◽  
Moh. Khalid Hasan ◽  
Md. Shahjalal ◽  
Md. Habibur Rahman ◽  
...  
Keyword(s):  
Data Streams ◽  
High Mobility ◽  
Region Of Interest ◽  
Setup Time ◽  
Frame Rate ◽  
High Rate ◽  
Rate Data ◽  
Vehicular Communication ◽  
Localization Scheme ◽  
Low Rate

This technical paper proposes a new waveform combining the low-rate and high-rate data streams to detect the region-of-interest signal in a high-mobility environment using optical camera communication. The proposed technique augments the bit rate of the low-rate stream; consequently, the link setup time is reduced and the requirement of low frame rate camera is eliminated. Additionally, both the low-rate and high-rate data streams in the proposed bi-level pulse position modulation are decoded with a unique adaptive thresholding mechanism with a high frame rate camera. We also propose a vehicle localization scheme to assist the drivers in maintaining a safe following distance that can significantly reduce the frequency of accidents. Moreover, two neural networks are proposed to detect the light-emitting diodes (LEDs) for localization and communication, and to estimate the road curvature from different rear LED shapes of the forwarding vehicle, respectively. The system is implemented, and its performance is analyzed in Python 3.7. The implementation results show that the proposed system is able to achieve 75% localization accuracy, a 150 bps low-rate stream, and a 600 bps high-rate stream over a range of 25 m with a commercial 30 fps camera.

High rate data systems

1987 ◽  
Author(s):  
RICHARD MILLER ◽  
DAVID NICHOLS
Keyword(s):  
High Rate ◽  
Rate Data ◽  
Data Systems

CDRD High Rate Data Links Program

2014 ◽  
Author(s):  
Aria Soha ◽  
Roger Rusack ◽  
A. Finkel ◽  
T. Norbert ◽  
Alan Prosser ◽  
...  
Keyword(s):  
High Rate ◽  
Rate Data ◽  
Data Links

scholarly journals Combining High- and Low-Rate Geodetic Data Analysis for Unveiling Rapid Magma Transfer Feeding a Sequence of Violent Summit Paroxysms at Etna in Late 2015

2021 ◽  
Vol 11 (10) ◽  
pp. 4630
Author(s):  
Alessandro Bonforte ◽  
Flavio Cannavò ◽  
Salvatore Gambino ◽  
Francesco Guglielmino
Keyword(s):  
Ground Deformation ◽  
High Rate ◽  
Rate Data ◽  
Scale Analysis ◽  
Feeding System ◽  
Magma Sources ◽  
Mt Etna ◽  
Multi Temporal ◽  
Gnss Measurements ◽  
Low Rate

We propose a multi-temporal-scale analysis of ground deformation data using both high-rate tilt and GNSS measurements and the DInSAR and daily GNSS solutions in order to investigate a sequence of four paroxysmal episodes of the Voragine crater occurring in December 2015 at Mt. Etna (Italy). The analysis aimed at inferring the magma sources feeding a sequence of very violent eruptions, in order to understand the dynamics and to image the shallow feeding system of the volcano that enabled such a rapid magma accumulation and discharge. The high-rate data allowed us to constrain the sources responsible for the fast and violent dynamics of each paroxysm, while the cumulated deformation measured by DInSAR and daily GNSS solutions, over a period of 12 days encompassing the entire eruptive sequence, also showed the deeper part of the source involved in the considered period, where magma was stored. We defined the dynamics and rates of the magma transfer, with a middle-depth storage of gas-rich magma that charges, more or less continuously, a shallower level where magma stops temporarily, accumulating pressure due to the gas exsolution. This machine-gun-like mechanism could represent a general conceptual model for similar events at Etna and at all volcanoes.

High rate data transmission in the mid-latitude NVIS HF channel

2006 ◽  
Vol 153 (2) ◽  
pp. 272 ◽  
Author(s):  
S. Antoniou ◽  
L. Christofi ◽  
P.R. Green ◽  
G.F. Gott
Keyword(s):  
Data Transmission ◽  
High Rate ◽  
Rate Data ◽  
Hf Channel

Rational dither modulation: a high-rate data-hiding method invariant to gain attacks

2005 ◽  
Vol 53 (10) ◽  
pp. 3960-3975 ◽  
Author(s):  
F. Perez-Gonzalez ◽  
C. Mosquera ◽  
M. Barni ◽  
A. Abrardo
Keyword(s):  
Data Hiding ◽  
High Rate ◽  
Rate Data ◽  
Dither Modulation ◽  
Rational Dither Modulation

scholarly journals A Holey Graphene Additive for Boosting Performance of Electric Double-Layer Supercapacitors

Polymers ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 765
Author(s):  
Jun-Bin Huang ◽  
Jagabandhu Patra ◽  
Ming-Hsien Lin ◽  
Ming-Der Ger ◽  
Yih-Ming Liu ◽  
...  
Keyword(s):  
Double Layer ◽  
Electric Double Layer ◽  
Graphene Nanosheets ◽  
Low Cost ◽  
Scale Up ◽  
Synthesis Temperature ◽  
High Rate ◽  
Active Materials ◽  
Double Layer Capacitors ◽  
High Rate Performance

We demonstrate a facile and effective method, which is low-cost and easy to scale up, to fabricate holey graphene nanosheets (HGNSs) via ultrafast heating during synthesis. Various heating temperatures are used to modify the material properties of HGNSs. First, we use HGNSs as the electrode active materials for electric double-layer capacitors (EDLCs). A synthesis temperature of 900 °C seems to be optimal, i.e., the conductivity and adhesion of HGNSs reach a compromise. The gravimetric capacitance of this HGNS sample (namely HGNS-900) is 56 F·g−1. However, the volumetric capacitance is low, which hinders its practical application. Secondly, we incorporate activated carbon (AC) into HGNS-900 to make a composite EDLC material. The effect of the AC:HGNS-900 ratio on the capacitance, high-rate performance, and cycling stability are systematically investigated. With a proper amount of HGNS-900, both the electrode gravimetric and volumetric capacitances at high rate charging/discharging are clearly higher than those of plain AC electrodes. The AC/HGNS-900 composite is a promising electrode material for nonaqueous EDLC applications.

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