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• OAI收割 [11]

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• 期刊论文 [7]
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• 2022 [2]
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• 图书馆、情报与文献学 [1]
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筛选

浏览/检索结果: 共11条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Research on Expanding the Field of View of Phased Array Feed 会议论文  OAI收割 Chengdu, China, 26-29 Aug. 2022 作者:  Wang, Kai;  Chen, Mao Zheng;  Yan, Hao;  Cao, Liang;  Ma, Jun   |  收藏  |  浏览/下载：16/0  |  提交时间：2023/06/28 Phased arrays  Wireless communication  Radio astronomy  Telescopes  Microwave communication  Apertures  Electromagnetic compatibility  radio telescope  receiver  phased array feed  beam scanning  field of view   Encoding and decoding communications based on perfect vector optical vortex arrays 期刊论文  OAI收割 JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2022, 卷号: 55, 期号: 43 作者:  Long, Zixu;  Hu, Huajie;  Ma, Xin;  Tai, Yuping;  Li, Xinzhong   |  收藏  |  浏览/下载：37/0  |  提交时间：2022/10/10 optical vortex array  vector optical field  optical encoding and decoding communication   Design of mobile vehicle-based adaptive optical wave-front processor 期刊论文  OAI收割 Guangxue Jingmi Gongcheng/Optics and Precision Engineering, 2018, 卷号: 26, 期号: 1, 页码: 48-54 作者:  Jia, Jian-Lu;  Zhao, Jin-Yu;  Wang, Jian-Li;  Wang, Shuai;  Wang, Liang   |  收藏  |  浏览/下载：29/0  |  提交时间：2019/09/17 Adaptive optics  Adaptive control systems  Closed loop control systems  Field programmable gate arrays (FPGA)  Integrated circuit design  Optical fiber communication  Optical fibers  Optical systems  Pipeline processing systems  Processing  Wavefronts   A research on high-speed and large-capacity interface technology basing on fiber channel 期刊论文  OAI收割 Proceedings of SPIE: 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices, 2016, 卷号: 9686, 页码: 96861G 作者:  Zhao, Zhi-Qiang;  Tian, Jing   |  收藏  |  浏览/下载：25/0  |  提交时间：2018/06/14 Adenosinetriphosphate  Computer Debugging  Data Acquisition  Data Communication Systems  Data Handling  Data Transfer  Fibers  Field Programmable Gate Arrays (Fpga)  Hardware  Integrated Circuit Design  Manufacture  Materials Testing  Network Layers  Network Protocols  Optoelectronic Devices  Rockets  Software Design  Transceivers   The impact of social capital on children's (6-12) use of ICT in urban communities: A field survey from Zhengzhou City, Henan Province 期刊论文  OAI收割 chinese journal of library and information science, 2015, 卷号: 8, 期号: 4, 页码: 50-61 作者:  WANG Ping;  HUANG Shang;  MIAO Miao;  LI Tingting 收藏  |  浏览/下载：54/0  |  提交时间：2016/02/25 Social capital  Children aged 6 to12  Information communication technology  Field observation  Community informatics   Storage and compression design of high speed CCD (EI CONFERENCE) 会议论文  OAI收割 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 19, 2008 - November 21, 2008, Chengdu, China Cai X.; Zhai L. P. 收藏  |  浏览/下载：57/0  |  提交时间：2013/03/25 In current field of CCD measurement  large area and high resolution CCD is used to obtain big measurement image  so that  speed and capacity of CCD requires high performance of later storage and process system. The paper discusses how to use SCSI hard disk to construct storage system and use DSPs and FPGA to realize image compression. As for storage subsystem  Because CCD is divided into multiplex output  SCSI array is used in RAID0 way. The storage system is composed of high speed buffer  DMA controller  control MCU  SCSI protocol controller and SCSI hard disk. As for compression subsystem  according to requirement of communication and monitor system  the output is fixed resolution image and analog PAL signal. The compression means is JPEG2000 standard  in which  9/7 wavelets in lifting format is used. 2 DSPs and FPGA are used to compose parallel compression system. The system is composed of FPGA pre-processing module  DSP compression module  video decoder module  data buffer module and communication module. Firstly  discrete wavelet transform and quantization is realized in FPGA. Secondly  entropy coding and stream adaption is realized in DSPs. Last  analog PAL signal is output by Video decoder. Data buffer is realized in synchronous dual-port RAM and state of subsystem is transfer to controller. Through subjective and objective evaluation  the storage and compression system satisfies the requirement of system. 2009 SPIE.   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.   Far-field spot compression without energy loss in main lob in wireless laser communication 期刊论文  OAI收割 optik, 2008, 卷号: 119, 期号: 9, 页码: 429, 433 Liu Ximin; 刘立人; Bai Lihua; Wang Jiming 收藏  |  浏览/下载：1059/242  |  提交时间：2009/09/18 far-field spot compression  wireless laser communication  diffractive phase element   A new class of quantum states generated by m-fold application of Bogoliubov's transformation 期刊论文  OAI收割 CHINESE PHYSICS, 2004, 卷号: 13, 期号: 8, 页码: 1269 Wu, W; Wu, LA; Xin, ZZ 收藏  |  浏览/下载：31/0  |  提交时间：2013/09/17 2-PHOTON COHERENT STATES  MINIMUM-UNCERTAINTY PACKETS  SCHRODINGER-CAT STATES  RADIATION-FIELD  SQUEEZED STATES  OPTICAL COMMUNICATION  EQUIVALENCE CLASSES  EXCITED EVEN  ATOM  ION   Worst-case response time of aperiodc message in WorldFIP and its improvement in real-time capability 期刊论文  OAI收割 ISA Transactions, 2004, 卷号: 43, 期号: 4, 页码: 623-637 作者:  Wang Z(王智);  Song YQ(宋叶琼);  Yu HB(于海斌);  Sun YX(孙优贤) 收藏  |  浏览/下载：25/0  |  提交时间：2012/05/29 WorldFIP  Field communication  Real-time  Aperiodic message  Worst-case responding time