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浏览/检索结果: 共8条，第1-8条 帮助

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Detection of early-universe gravitational-wave signatures and fundamental physics 期刊论文  OAI收割
GENERAL RELATIVITY AND GRAVITATION, 2022, 卷号: 54, 期号: 12, 页码: 156
作者:  Caldwell, Robert;  Cui, Yanou;  Guo, Huai-Ke;  Mandic, Vuk;  Mariotti, Alberto
  |  收藏  |  浏览/下载：85/0  |  提交时间：2023/01/16
麦冬类药材及其混淆品的性状及显微鉴别研究 期刊论文  OAI收割
中草药, 2022, 卷号: 53, 期号: 24, 页码: 7905
作者:  蒙倩;  张航;  Chayanis Sutcharitchan;  杨纯国;  吴婉莹
  |  收藏  |  浏览/下载：41/0  |  提交时间：2023/05/22
Granite and continental tectonics, magma thermal field and metallgenesis 期刊论文  OAI收割
ACTA PETROLOGICA SINICA, 2017, 卷号: 33, 期号: 5, 页码: 1524-1540
作者:  Zhang Qi;  Jiao ShouTao;  Li ChengDong;  Chen WanFeng
  |  收藏  |  浏览/下载：34/0  |  提交时间：2017/11/16
Lunar gravity field simulation based on big inclination orbiter 期刊论文  OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2011, 卷号: 54, 期号: 3, 页码: 666-672
作者:  Li Fei;  Yan Jan-Guo;  Ping Jin-Song;  Ye Shu-Hua;  Tang Ge-Shi
收藏  |  浏览/下载：33/0  |  提交时间：2015/08/20
Attitude determination of small, dim and high-speed targets based on multi-CMOS intersecting system (EI CONFERENCE) 会议论文  OAI收割
2nd International Conference on Information Science and Engineering, ICISE2010, December 4, 2010 - December 6, 2010, Hangzhou, China
作者:  Li M.;  Zhao L.;  Wang J.
收藏  |  浏览/下载：40/0  |  提交时间：2013/03/25
In order to measure attitude of small  dim and high-speed targets in shooting range  intersecting system based on multiple high-speed CMOS cameras was introduced in this paper. CMOS cameras were laid near from objects for small size  using multiple CMOS cameras to compose intersecting system for big number of targets tested  and selecting CMOS camera between CMOS and CCD for low cost and considering damage to measurement equipment of objects tested. Pitch angle and yaw angle were measured by extracting axle wire through image processing  image sequences were obtained from cameras laying on two sides. Velocity of objects was calculated by least square curve-fitting  acquiring coordinate of centroid on image received by CMOS camera laying below effective viewing field. One CMOS camera was laid on right ahead for measuring roll angle. Station mode introduced in this paper has virtue of low cost and free extending. 2010 IEEE.  
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：72/0  |  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.  
Valuations on arithmetic surfaces 期刊论文  iSwitch采集
Science in china series a-mathematics, 2009, 卷号: 52, 期号: 1, 页码: 66-76
作者:  Xu Ning
收藏  |  浏览/下载：58/0  |  提交时间：2019/05/10
Exact calculation of the optical path difference and lateral displacement of modified large optical path difference Sagnac interferometer in full view field used in upper atmospheric wind field measurement 期刊论文  OAI收割
acta physica sinica, 2008, 卷号: 57, 期号: 9, 页码: 5435-5441
作者:  Kai, Ruan;  Chun-Min, Zhang;  Bao-Chang, Zhao
收藏  |  浏览/下载：23/0  |  提交时间：2011/09/30