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Observation and Communication Platform Design of USV for Marine Environmental Parameters 会议论文  OAI收割
Biloxi, MS, United states, October 5-30, 2020
作者:  
Wang YH(王银欢);  Cui J(崔健);  Zhao BD(赵宝德);  Zhao WT(赵文涛);  Liu KZ(刘开周)
  |  收藏  |  浏览/下载:31/0  |  提交时间:2021/05/10
Modeling and analysis of NWC signal propagation amplitude based on LWPC and IRI models 期刊论文  OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2019, 卷号: 62, 期号: 9, 页码: 3223-3234
作者:  
Yi Juan;  Gu XuDong;  Li ZhiPeng;  Lin RenTong;  Cai YiHui
  |  收藏  |  浏览/下载:51/0  |  提交时间:2020/05/18
Functions of retired GEO communication satellites in improving the PDOP value of CAPS 期刊论文  OAI收割
SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY, 2009, 卷号: 52, 期号: 3, 页码: 423-433
作者:  
Han YanBen;  Ma LiHua;  Qiao QiYuan;  Yin ZhiQiang;  Shi HuLi
收藏  |  浏览/下载:31/0  |  提交时间:2017/04/11
Analysis of laser jamming to satellite-based detector (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, June 17, 2009 - June 19, 2009, Beijing, China
作者:  
Guo L.-H.;  Guo R.-H.;  Wang S.-W.
收藏  |  浏览/下载:30/0  |  提交时间:2013/03/25
The reconnaissance satellite  communication satellite and navigation satellite used in the military applications have played more and more important role in the advanced technique wars and already become the significant support and aid system for military actions. With the development of all kinds of satellites  anti-satellite laser weapons emerge as the times require. The experiments and analyses of laser disturbing CCD (charge coupled detector) in near ground have been studied by many research groups  but their results are not suitable to the case that using laser disturbs the satellite-based detector. Because the distance between the satellite-based detector and the ground is very large  it is difficult to damage it directly. However the optical receive system of satellite detector has large optical gain  so laser disturbing satellite detector is possible. In order to determine its feasibility  the theoretical analyses and experimental study are carried out in the paper. Firstly  the influence factors of laser disturbing satellite detector are analyzed in detail  which including laser power density on the surface of the detector after long distance transmission  and laser power density threshold for disturbing etc. These factors are not only induced by the satellite orbit  but dependence on the following parameters: laser average power in the ground  laser beam quality  tracing and aiming precision and atmospheric transmission. A calculation model is developed by considering all factors which then the power density entering into the detector can be calculated. Secondly  the laser disturbing experiment is performed by using LD (laser diode) with the wavelength 808 nm disturbing CCD 5 kilometer away  which the disturbing threshold value is obtained as 3.5510-4mW/cm2 that coincides with other researcher's results. Finally  using the theoretical model  the energy density of laser on the photosensitive surface of MSTI-3 satellite detector is estimated as about 100mW/cm2  which is largely exceed the disturbing threshold and therefore verify the feasibility of using this kind of laser disturbing the satellite-based detector. According to the results. using the similar laser power density absolutely saturate the requirements to laser disturbing satellite-based detector. If considering the peak power of pulsed laser  even decrease laser average power  it is also possible to damage the detector. This result will provide the reliable evidences to evaluate the effect of laser disturbing satellite-based detector. 2009 SPIE.  
Research on the airborne communication and navigation apparatus ATE system based on the virtual instrument (EI CONFERENCE) 会议论文  OAI收割
2008 Pacific-Asia Workshop on Computational Intelligence and Industrial Application, PACIIA 2008, December 19, 2008 - December 20, 2008, Wuhan, China
Zijing Z.; Zhongbao X.; Yanbin S.
收藏  |  浏览/下载:74/0  |  提交时间:2013/03/25
The airborne communication and navigation (CN) apparatus ATE system is the important apparatus for measure the working state and performance of the CN automatically and quickly. It has explained the composition of the ATE system based on the virtual instrument  the bus structure and signal recuperated in this paper. The ATE System adopts platformization fault diagnosis thought  the fault diagnose mechanism and logic are designed by the users  which is an organic whole realized the fault diagnoses and the maintain means coordination. System is interchangeable and upgradeable on operating system  special-purpose tester  and the testing program is portable between the different ATE. Indicate by the practice  the airborne CN apparatus ATE system have good military and economic benefits. 2008 IEEE.