High-speed data access to the Green Bank Telescope

2000 ◽  
Author(s):  
Gareth Hunt ◽  
Alan Bridle
Keyword(s):  
High Speed ◽  
Data Access ◽  
High Speed Data ◽  
Green Bank Telescope

The Application of Flash Memory in Computerized Jacquard Controller

2012 ◽  
Vol 182-183 ◽  
pp. 706-710 ◽  
Author(s):  
Cheng Jun Zhang ◽  
Xiao Yan Zuo ◽  
Chi Zhang ◽  
Xiao Guang Wu
Keyword(s):  
Flash Memory ◽  
High Speed ◽  
Data Transfer ◽  
Data Access ◽  
Management Procedures ◽  
File Structure ◽  
High Speed Data

Through analyzing the pattern data of computerized jacquard knitting wrap machine, comparing the current storages structure and type, this paper introduces a method for Flash file structure of jacquard data. The method takes advantage of ARM chip to achieve the operations for access and modification of Flash, designing a management procedures of jacquard data access from the perspective of increasing the Flash life. The management procedures not only complete read and write operations, but also meet the requirement of jacquard high-speed data transfer.

Design of a Small-Sized High-Speed Data Storage Module Based on FPGA

2014 ◽  
Vol 912-914 ◽  
pp. 1556-1560
Author(s):  
Sheng Kun Li ◽  
Cheng Qun Chu ◽  
Hai Liang Chen ◽  
Fang Ma
Keyword(s):  
Data Storage ◽  
Flash Memory ◽  
High Speed ◽  
High Performance ◽  
Data Access ◽  
Nand Flash ◽  
Nand Flash Memory ◽  
Storage Unit ◽  
Field Programmable ◽  
High Speed Data

The large-capacity, high-speed and low power consumption become the new requirements for the data storage systems. In this paper, a high-performance storage module based on multiple NAND flash memory chips is presented to real-time massive data acquisition system. In order to achieve the miniaturization dimension and the high-speed data storage design requirements, the paper presents a small size and high-speed storage unit based on NAND flash, where the dimensions of the module can reach 33mm×33mm and the maximum rate is up to 60MB/s. Ensuring continuous and reliable operation requires a dedicated buffering for the data transmission. We analyze the elements and peculiarities of the flash memory chip and propose a multi-way architecture to speed up data access. The design of a multilevel high-speed buffer structure based on the field programmable gate array (FPGA) technology is introduced in the paper. The proposed system can be applicable to some portable digital equipment.

Design of PXI Digital Storage Oscilloscope Module Based on FPGA

2014 ◽  
Vol 602-605 ◽  
pp. 2671-2674
Author(s):  
Lei Qiu ◽  
Dao Ju Duan ◽  
Xiao Zhou ◽  
Rong Yue Xie
Keyword(s):  
High Speed ◽  
Control Unit ◽  
Data Access ◽  
Test System ◽  
Storage Oscilloscope ◽  
Digital Storage ◽  
High Speed Adc ◽  
Digital Storage Oscilloscope ◽  
Field Programmable ◽  
High Speed Data

A digital storage oscilloscope module in automatic test equipment was designed based on PIX bus. The field programmable gate array (FPGA) is used as the logic control unit. The circuit of high speed ADC and FPGA interface, clock management, and high speed data access were designed based on hardware modules. The digital storage oscilloscope module was successfully applied to the practical test system, whose performance was good, stable, and achieved the desired design goals.

scholarly journals Design and Analysis of Commercially Viable Free-Space Optical Communication Link for Diverse Beam Divergence Profiles

2021 ◽  
Vol 9 ◽  
Author(s):  
Harjeevan Singh ◽  
Rajan Miglani ◽  
Nitin Mittal ◽  
Gurjot Singh Gaba ◽  
Mehedi Masud ◽  
...  
Keyword(s):  
Free Space ◽  
High Speed ◽  
Data Access ◽  
End Users ◽  
Beam Divergence ◽  
Smart Devices ◽  
Communication Link ◽  
Free Space Optical ◽  
Link Performance ◽  
High Speed Data

With an exponential increase in the use of smart devices and with increasing demand for high-speed data applications, the Radio Frequency and Microwave links will find themselves almost incapable of meeting this deficit. Free-space optical (FSO) links are poised to take the leading role as communication systems for futuristic needs in providing cost-effective and high-speed connectivity to end-users. However, on the flip side, the reliability of FSO links has an intrinsic relationship with the characteristics of the atmospheric channel. During the propagation, the atmospheric adversities result in the geometrical spreading of the FSO beam which in turn has consequential degrading effects on the link performance. In this work, an FSO communication system based on practical, commercial, and realistic parameters has been proposed with the intent of accurately determining the co-relation between different beam divergence profiles and overall link performance. For different beam divergence profiles, the proposed link has been evaluated for reference bit error rate (BER) of 10–9 which is an ideal condition for delivering high-speed data access to the end-users. During the analysis, the practical constraints related to the trade-off between the maximum possible link range and beam divergence have also been optimized. The findings of this work will be crucial for engineers and designers in configuring FSO links for improved link range and reliability.

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