中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页
机构
成果
学者
登录
注册
登陆
×
验证码:
换一张
忘记密码?
记住我
×
校外用户登录
CAS IR Grid
机构
长春光学精密机械与物... [2]
地质与地球物理研究所 [1]
国家天文台 [1]
沈阳自动化研究所 [1]
采集方式
OAI收割 [5]
内容类型
会议论文 [3]
期刊论文 [2]
发表日期
2020 [1]
2019 [1]
2009 [2]
2008 [1]
学科主题
筛选
浏览/检索结果:
共5条,第1-5条
帮助
条数/页:
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
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
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
unmanned surface vehicle (USV)
observation and communication platform
underwater acoustic communication
BeiDou navigation satellite system (BDS)
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
NWC very low frequency (VLF) transmitter signals
Long Wavelength Propagation Capability (LWPC) model
International Reference Ionosphere (IRI) model
Communication and navigation
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
satellite navigation and positioning
GEO communication satellite
retired satellite
CAPS
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.