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浏览/检索结果: 共6条,第1-6条 帮助

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Frontiers in lunar science based on bibliometric analysis 期刊论文  OAI收割
ACTA PETROLOGICA SINICA, 2023, 卷号: 39, 期号: 10, 页码: 3169-3183
作者:  
Zhang TengFei;  Wang YanHai;  Yang Wei;  Liu Yang;  Wu DengSheng
  |  收藏  |  浏览/下载:12/0  |  提交时间:2023/12/27
A Historical Review of China-US Cooperation in Space: Launching Commercial Satellites and Technology Transfer, 1978-2000 期刊论文  OAI收割
SPACE POLICY, 2019, 卷号: 50, 页码: 15
作者:  
Zhang, Zhihui;  Seely, Bruce
  |  收藏  |  浏览/下载:23/0  |  提交时间:2022/07/01
Virtual Plate Based Controlling Strategy of Toy Play for Robot's Communication Development in JA Space 期刊论文  OAI收割
International Journal of Automation and Computing, 2019, 卷号: 16, 期号: 1, 页码: 93-101
作者:  
Wei Wang;  Xiao-Dan Huang
  |  收藏  |  浏览/下载:18/0  |  提交时间:2021/02/22
An image registration method for surgical robots based on human-robot cooperation 会议论文  OAI收割
2016 IEEE International Conference on Mechatronics and Automation, Harbin, China, August 7-10, 2016
作者:  
Cao L(曹蕾);  Liu H(刘浩);  Zhou YY(周圆圆);  Han JD(韩建达)
收藏  |  浏览/下载:22/0  |  提交时间:2016/09/28
Optimal sensors deployment for tracking level curve based on posterior Cramer-Rao lower bound in scalar field 会议论文  OAI收割
The 7th International Conference on Intelligent Robotics and Application (ICIRA2014), Guangzhou, China, December 17-20, 2014.
作者:  
Zhao WT(赵文涛);  Yu JC(俞建成);  Zhang AQ(张艾群);  Li Y(李岩)
收藏  |  浏览/下载:56/0  |  提交时间:2014/12/29
Transceiving protocol designc for a free space optical communication system (EI CONFERENCE) 会议论文  OAI收割
2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments, November 16, 2008 - November 19, 2008, Beijing, China
Hualong W.; Wanxin S.; Zhongbao X.
收藏  |  浏览/下载:58/0  |  提交时间:2013/03/25
A new transceiving protocol is demonstrated for a Free Space Optical (FSO) communication system  and it's discussed in two parts: the transmitting protocol and the receiving protocol. During the discussion of these two parts  the cooperation of them is also discussed. Different from wired communication  an FSO system modulates the data on a narrow beam of laser transmitting through the free space or the atmosphere  and the protocol presented in this paper is mainly optimized for terrestrial Free Space Optical links  in which the signal channel of the system is mainly the atmosphere. Due to the complex composition and activity of the atmosphere  this signal channel brings in great influence on the transmitting laser in it  for example  the absorption and scattering of the atmosphere molecules and aerosols  the scintillation of received laser power caused by the turbulence of the atmosphere  all of which results in a much higher Bit Error Rate (BER) of the communication system. Thus in designing a protocol for an FSO system  more effort should be taken in the encoding of the data stream  the synchronization of the data stream  error checking and exception handling. The main function of the transmitting protocol includes interfacing the outer input data with a parallel port  buffering the input data  encoding the input data stream  serializing the parallel data and output the serialized data. It also has an output management unit to manage the activity of each part of the transmitting protocol. The main function of the receiving protocol includes filtering and synchronizing the input serial data stream  paralleling the serial data stream  decoding the input data  error checking  exception handling and interfacing the outer receiver with a parallel port. The entire transceiving protocol could be programmed into a single FPGA chip to improve system integrity and reduce the system cost. The presented protocol could be taken as "protocol transparent" for outer interfaces  meaning that when interfacing the presented system to an outer system  you don't have to consider what protocol the outer system transceiving data stream is under  for example  the TCP/IP protocol or anything else  in the case that its I/O interface is a parallel port. Simulation and final experiment prove that the protocol presented is working fine at a certain bit rate scale. 2009 SPIE.