Integrated High Speed and High Capacity Base-Band Data Handling—Solid-State Recorder for Small Satellite Applications

Author(s):  
Saswata Maitra ◽  
S. Chandrakanth ◽  
R. M. K. Guptha ◽  
P. Neeraja ◽  
K. L. Raja Sekhar ◽  
...  
1959 ◽  
Vol SET-5 (1) ◽  
pp. 8-13
Author(s):  
R. L. Sink ◽  
C. E. Pettingall ◽  
B. N. Posthill

2014 ◽  
Vol 1073-1076 ◽  
pp. 1977-1981
Author(s):  
Qi Song ◽  
Shan Li ◽  
Yan Zhu ◽  
Jun She An

Space borne high-capacity solid state recorder (SSR) is an inevitable chain of the space scientific data acquirement system. It has become a common device in spacecraft gradually. This paper presents the design and accomplishment of the large capacity SSR design based on NAND flash of the satellite SJ-10. The SSR improves its writing speed significantly by applying multi-pipeline writing technique. External SDRAM is used as the channel cache of the multi-channel data flows to increase the cache capacity and system throughput speed. In addition, the EDAC processing, data flow combining and separating can enhance the stability of the storage system as well as the data efficiently. The implementing of multi-channel has also laid the foundation for file system management of the space borne storage data. The simulation of multi-channel data flow is given in this paper.


1996 ◽  
Author(s):  
Wallace G. Fishell ◽  
Kenneth J. Handel ◽  
James M. Rader

Vestnik MEI ◽  
2020 ◽  
Vol 6 (6) ◽  
pp. 82-90
Author(s):  
Dmitriy I. Panfilov ◽  
◽  
Mikhail G. Astashev ◽  
Aleksandr V. Gorchakov ◽  
◽  
...  

The specific features relating to voltage control of power transformers at distribution network transformer substations are considered. An approach to implementing high-speed on-load voltage control of serially produced 10/0.4 kV power transformers by using a solid-state on-load tap changer (SOLTC) is presented. An example of the SOLTC circuit solution on the basis of thyristor switches is given. On-load voltage control algorithms for power transformers equipped with SOLTC that ensure high reliability and high-speed operation are proposed. The SOLTC performance and the operability of the suggested voltage control algorithms were studied by simulation in the Matlab/Simulink environment and by experiments on the SOLTC physical model. The structure and peculiarities of the used simulation Matlab model are described. The SOLTC physical model design and its parameters are presented. The results obtained from the simulating the SOLTC operation on the Matlab model and from the experiments on the SOLTS physical model jointly with a power transformer under different loads and with using different control algorithms are given. An analysis of the experimental study results has shown the soundness of the adopted technical solutions. It has been demonstrated that the use of an SOLTC ensures high-speed voltage control, high efficiency and reliability of its operation, and arcless switching of the power transformer regulating taps without load voltage and current interruption. By using the SOLTC operation algorithms it is possible to perform individual phase voltage regulation in a three-phase 0.4 kV distribution network. The possibility of integrating SOLTC control and diagnostic facilities into the structure of modern digital substations based on the digital interface according to the IEC 61850 standard is noted.


Sensors ◽  
2021 ◽  
Vol 21 (11) ◽  
pp. 3871
Author(s):  
Jiri Pokorny ◽  
Khanh Ma ◽  
Salwa Saafi ◽  
Jakub Frolka ◽  
Jose Villa ◽  
...  

Automated systems have been seamlessly integrated into several industries as part of their industrial automation processes. Employing automated systems, such as autonomous vehicles, allows industries to increase productivity, benefit from a wide range of technologies and capabilities, and improve workplace safety. So far, most of the existing systems consider utilizing one type of autonomous vehicle. In this work, we propose a collaboration of different types of unmanned vehicles in maritime offshore scenarios. Providing high capacity, extended coverage, and better quality of services, autonomous collaborative systems can enable emerging maritime use cases, such as remote monitoring and navigation assistance. Motivated by these potential benefits, we propose the deployment of an Unmanned Surface Vehicle (USV) and an Unmanned Aerial Vehicle (UAV) in an autonomous collaborative communication system. Specifically, we design high-speed, directional communication links between a terrestrial control station and the two unmanned vehicles. Using measurement and simulation results, we evaluate the performance of the designed links in different communication scenarios and we show the benefits of employing multiple autonomous vehicles in the proposed communication system.


2019 ◽  
Vol 7 (2) ◽  
pp. 520-530 ◽  
Author(s):  
Qiulong Li ◽  
Qichong Zhang ◽  
Chenglong Liu ◽  
Juan Sun ◽  
Jiabin Guo ◽  
...  

The fiber-shaped Ni–Fe battery takes advantage of high capacity of hierarchical CoP@Ni(OH)2 NWAs/CNTF core–shell heterostructure and spindle-like α-Fe2O3/CNTF electrodes to yield outstanding electrochemical performance, demonstrating great potential for next-generation portable wearable energy storage devices.


2016 ◽  
Vol 4 (36) ◽  
pp. 13822-13829 ◽  
Author(s):  
Xiaowei Li ◽  
Sijian Li ◽  
Zhengxi Zhang ◽  
Jun Huang ◽  
Li Yang ◽  
...  

Hybrid ionogel electrolytes have high thermal and electrochemical stability, good ionic conductivity, and potential to suppress Li dendrite formation. Solid-state lithium metal batteries with hybrid electrolytes reveal high capacity and remarkable rate performance.


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