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浏览/检索结果: 共12条，第1-10条 帮助

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Geophysical survey over molybdenum mines using the newly developed M-TEM system 期刊论文  OAI收割
JOURNAL OF APPLIED GEOPHYSICS, 2018, 卷号: 158, 页码: 65-70
作者:  Di, Qing-yun;  Xue, Guo-qiang;  Lei, Da;  Wang, Zhong-xing;  Zhang, Yi-ming
  |  收藏  |  浏览/下载：97/0  |  提交时间：2018/10/23
An integrated test of the multi-channel transient electromagnetic system 期刊论文  OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2016, 卷号: 59, 期号: 12, 页码: 4399-4407
作者:  Di, Qing-Yun;  Lei, Da;  Wang, Zhong-Xing;  Zhang, Yi-Ming;  Wang, Shun
  |  收藏  |  浏览/下载：29/0  |  提交时间：2017/11/20
Multi-Channel Photonic Crystal Filters with Superposed Structure 会议论文  OAI收割
international symposium on advanced optical design and manufacturing technologies / international symposium on astronomical telescope and instrumentation, beijing, peoples r china, 2016-05-09
作者:  Qian, Shi;  Lei, Zhang
收藏  |  浏览/下载：35/0  |  提交时间：2017/03/20
开放式数字印刷控制系统中的关键技术研究 学位论文  OAI收割
工学博士, 中国科学院自动化研究所: 中国科学院大学, 2014
作者:  胡建华
收藏  |  浏览/下载：74/0  |  提交时间：2015/09/02
Physical layer design for free space optical communication (EI CONFERENCE) 会议论文  OAI收割
2012 International Conference on Control Engineering and Communication Technology, ICCECT 2012, December 7, 2012 - December 9, 2012, Shenyang, Liaoning, China
作者:  Wang H.;  Zhang Q.;  Guo J.;  Guo J.;  Wang H.
收藏  |  浏览/下载：29/0  |  提交时间：2013/03/25
A small size Free Space Optical Communication System is introduced  including the hardware and the hardware specified physical layer protocol. In detail  the rapid synchronization method to reduce the handshake bandwidth requirement is demonstrated. The hardware of the system includes the laser driver system  the signal amplifying and shaping system  the data interface system. The hardware specified physical layer protocol is used to interface the outer data  serialize and deserialize the data stream  check transmission errors and schedule the data transmission. The overall system is a FIFO-like system and the user can use it as if he's operating a FIFO. The system is designed mainly for terrestrial FSO link whose signal channel is 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 than wired communication systems leading to frequent resynchronization. In our system  the sampling clock is generated locally using multi-phase sampling technique rather than PLLbased clock recovery  which helps to rapid synchronization. 2012 IEEE.  
Downlink Performance Analysis of MIMO Relaying Networks 期刊论文  OAI收割
WIRELESS PERSONAL COMMUNICATIONS, 2012, 卷号: 62, 期号: 3, 页码: 729-746
Wang, P; Zu, LJ; Liu, FQ; Han, J; Ai, Q; Nguyen, NV; Wang, YL
收藏  |  浏览/下载：18/0  |  提交时间：2013/04/25
Development of multi-channel gated integrator and PXI-DAQ system for nuclear detector arrays 期刊论文  OAI收割
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2010, 卷号: 622, 期号: 1, 页码: 215-218
作者:  Ma, Jun-Bing;  Kong, Jie;  Su, Hong;  Chen, Zhi-Qiang;  Dong, Cheng-Fu
  |  收藏  |  浏览/下载：26/0  |  提交时间：2011/04/20
Multi-channel high-speed TDICCD image data acquisition and storage system (EI CONFERENCE) 会议论文  OAI收割
2010 International Conference on E-Product E-Service and E-Entertainment, ICEEE2010, November 7, 2010 - November 9, 2010, Henan, China
作者:  Li Y.;  Li Y.;  Li Y.;  Li Y.
收藏  |  浏览/下载：26/0  |  提交时间：2013/03/25
For multi-channel high-speed image data of certain space remote sensing camera  this paper proposed a new image data acquisition and storage system. First of all  the system uses Field-Programmable Gate Array(FPGA) controlling synchronous dynamic random access memory(SDRAM) array to realize the cache of image data  then according to the received commands  sends certain channel's image data to the acquisition card to write the image data into SCSI hard disk and implements the final storage. A Time Delay Integral Charge Couple Device(TDICCD) image data acquisition and storage system with five channels is developed  pixel clock rate is up to 96MHz  total effective data rate is up to 2.88Gb/s  single channel storage depth is up to 7810 lines. The experimental results indicate that this system work stably  high effectively which can meet the requirement of acquisition and storage of multi-channel high-speed TDICCD image data. 2010 IEEE.  
Application of multi-sensors parallel fusion system in photoelectric tracing (EI CONFERENCE) 会议论文  OAI收割
2008 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Applications, November 16, 2008 - November 19, 2008, Beijing, China
Cheng G.-Y.; Cai S.; Gao H.-B.; Zhang S.-M.; Qiao Y.-F.
收藏  |  浏览/下载：23/0  |  提交时间：2013/03/25
To solve the real-time and reliability problem of tracking servo-control system in optoelectronic theodolite  a multisensors parallel processing system was proposed. Misdistances of three different wavebands were imported into system  and then prediction was done in DSP1 to get the actual position information. Data fusion was accomplished in PPGA imported by multi channel buffer serial port. The compound position information was used to control the theodolite. The results were compared with external guide data in DSP2 to implement correction of above calculation  and then were imported to epistemic machine through PXI interface. The simulation experiment of each calculation unit showed that this system could solve the real-time problem of feature level data fusion. The simulation result showed that the system can satisfy the real-time requirement with 1.25ms in theodolite with three imaging systems  while sampling frequency of photoelectric encoder was 800 Hz. 2009 SPIE.  
Study on the ac-Stark splitting in a four-level system 期刊论文  OAI收割
ACTA PHYSICA SINICA, 2002, 卷号: 51, 页码: 782-788
作者:  Li, YF;  Zhang, XY;  Sun, JF;  Wang, YC
  |  收藏  |  浏览/下载：21/0  |  提交时间：2018/05/31