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CAS IR Grid
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长春光学精密机械与物... [3]
自动化研究所 [1]
国家授时中心 [1]
工程热物理研究所 [1]
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OAI收割 [6]
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会议论文 [4]
期刊论文 [2]
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2012 [1]
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2001 [1]
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Momentum-space crystal in narrow-line cooling of( 87)Sr
期刊论文
OAI收割
CHINESE PHYSICS B, 2019, 卷号: 28, 期号: 1, 页码: 7
作者:
Han, Jian-Xin
;
Lu, Ben-Quan
;
Yin, Mo-Juan
;
Wang, Ye-Bing
;
Xu, Qin-Fang
  |  
收藏
  |  
浏览/下载:14/0
  |  
提交时间:2021/11/29
momentum space crystal
narrow-line cooling
strontium
A novel 3D measurement method of welding workpiece for robot off-line programming
会议论文
OAI收割
Chongqing, China, 2017.5.28-2017.5.30
作者:
Lei,yang
;
En,li
;
Zize,liang
  |  
收藏
  |  
浏览/下载:23/0
  |  
提交时间:2019/04/24
Narrow Space
Aluminum Reduction Cell
Laser Sensor
Pose
Monocular Vision
Research on the key technology of ATP system for free space optical communication (EI CONFERENCE)
会议论文
OAI收割
31st Chinese Control Conference, CCC 2012, July 25, 2012 - July 27, 2012, Hefei, China
Meng H.
;
Liu X.
;
Zhang B.
收藏
  |  
浏览/下载:15/0
  |  
提交时间:2013/03/25
Free space optical communication is the bidirectional transmission technology that puts to use the laser beam as a carrier in space. Free space optical communication is generally used in the severe space environment. It is the mainly problem that the narrow beam of laser beam is high-precision aimed.
and it is became very important that the technology of ATP is researched. Performance of the ATP system directly affects the performance of the quality of the free space optical communication. So research of the ATP is the key technology in FSO
and this technology is discussed and analysed in the article. 2012 Chinese Assoc of Automati.
Spaceborne laser interconnect technology based on human bionics (EI CONFERENCE)
会议论文
OAI收割
2009 IEEE International Conference on Mechatronics and Automation, ICMA 2009, August 9, 2009 - August 12, 2009, Changchun, China
作者:
He X.
;
Wang J.
收藏
  |  
浏览/下载:25/0
  |  
提交时间:2013/03/25
As a result of comparative study on human visual and Free Space Optical (FSO) communication
a new concept of satellites laser interconnect was proposed based on human bionics. For the laser link is difficult to set up directly
a new concept was given out based on the three processes of human visual capturing the objectives: voice assisting to guide
eyes' wide Field Of View (FOV) cursory capturing and eyes' foveal FOV high-resolution imaging. Three similar processes were introduced to spaceborne laser interconnect which were radio assisting to guide
beacons laser wide FOV capturing and communication laser narrow FOV capturing
so that the difficulty of setting up the optical communication link was reduced evidently. Meanwhile
the antenna optical system based on the bionics was given out. Each laser terminal configured two independent optical antenna
through the spaceborne storage and time-domain link switching
complex topology network could be set up. The simulation system was built using Virtual Reality Toolbox
the result showed that the laser terminal could search and set up communication links
which took about only lOOms from capturing the beacon to setting up communication. 2009 IEEE.
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.
Enhanced boiling heat transfer from different surfaces in narrow space
期刊论文
OAI收割
JOURNAL OF ENHANCED HEAT TRANSFER, 2001, 卷号: 8, 期号: 6, 页码: 373-381
作者:
Lin, ZP
;
Ma, TZ
;
Zhang, ZF
;
Zhang, LC
收藏
  |  
浏览/下载:19/0
  |  
提交时间:2015/12/17
boiling heat transfer
enhanced boiling
porous surfaces
narrow space
critical heat flux
local heat transfer