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长春光学精密机械与物... [4]
自动化研究所 [1]
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OAI收割 [5]
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会议论文 [4]
学位论文 [1]
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2012 [1]
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2005 [1]
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Design of high speed and parallel compression system used in the big area CCD of high frame frequency (EI CONFERENCE)
会议论文
OAI收割
2011 International Conference on Precision Engineering and Non-Traditional Machining, PENTM 2011, December 9, 2011 - December 11, 2011, Xi'an, China
作者:
Li G.-N.
;
Jin L.-X.
;
Zhang R.-F.
;
Wang W.-H.
;
Li G.-N.
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浏览/下载:53/0
  |  
提交时间:2013/03/25
According to the area CCD camera of characteristics
such as high resolution capacity and high frame frequency
this paper puts forward a high speed and parallel image compression system of high integration degree. Firstly
according to the work principle of the area CCD
FPGA is adopted to realize the timing driving and multichannel and parallel analog signal handling to raise the export frame frequency of the area CCD. Secondly
with an image compression scheme based on FPGA embedded processor MicroBlaze and ADV212 compression chip
real time image compression and the high speed area CCD are realized. Finally
by detecting the analog signal of the area CCD output
the real time compression of the big area CCD image is carried out in different compression ratios and the compression performance is analyzed. Experiment result shows that this scheme can realize real time image compression with the biggest data rate of 520Mbps. When compression bit ratio is 0.15
the signal-to-noise ratio of peak value can reach 36 dB. Image collection and image compression are integrated
which reduces the data transmission between them and improves systematic integration degree.
Design of VxWorks-based software architecture for space optical remote sensor (EI CONFERENCE)
会议论文
OAI收割
2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China
Tao Y.
;
Song K.
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浏览/下载:38/0
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提交时间:2013/03/25
In order to satisfy requirements of real time and parallel control for the space optical remote sensor and implement the high integration of software
a kind of VxWorks-based multitask software architecture was put forward. Firstly
the technological requirements of optical remote sensor were analyzed in detail and functions and performances of the optical remote sensor were fixed. Task that was based on each function of optical remote sensor was compartmentalized. Then
software architecture of optical remote sensor was designed. Finally
experiments were carried out and results verified the accuracy and feasibility of the software architecture. Test results showed that the software architecture satisfied the requirements of real time and parallel control for the space optical remote sensor
its functions and performances met the system design target perfectly
and the software architecture was applicable to the engineering application of space instrument. 2011 IEEE.
The design of SD-SDI video conversion card based on FPGA (EI CONFERENCE)
会议论文
OAI收割
2010 3rd International Conference on Advanced Computer Theory and Engineering, ICACTE 2010, August 20, 2010 - August 22, 2010, Chengdu, China
作者:
He X.
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浏览/下载:32/0
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提交时间:2013/03/25
Based on the host chip of FPGA
it designed digital video conversion equipment
and completed the conversion between video with SD-SDI interface and Camera Link. After collecting the video from the camera
demosaicing
converting the color space
de-interlacing
interlacing and other operation
the circuit implemented the real-time video conversion between both different interfaces. With much flexibility
high integration and less hardware resources
the whole system completed a high-quality video solution. 2010 IEEE.
Design of GPS/INS integrated navigation system based on multisensor information fusion (EI CONFERENCE)
会议论文
OAI收割
6th World Congress on Intelligent Control and Automation, WCICA 2006, June 21, 2006 - June 23, 2006, Dalian, China
Chunmei H.
;
Yantao T.
;
Wanxin S.
;
Mao L.
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浏览/下载:38/0
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提交时间:2013/03/25
Two kinds of design methods of GPS/INS integrated navigation system are presented
that is GPS/INS integrative system and integrated navigation system based on information fusion. By analyzing mathematics model of the first system error
we found that inertia velocity error would cause code loop track error. Consequently
the pseudo range meterage error is interrelated with inertia velocity error
which is complex to calculate. If this relativity is ignored in the state equation and observation equation of this system
it must affect the estimated precision of the kalman filter and maybe the system is unstable. Therefore
the second integrated navigation method is introduced. It adopts information fusion
federal kalman filter and covariance. And consider the above pertinence to analyze the navigation performance of the integration system. Then it gives the flow of federal kalman filter algorithm. By analyzing
the conclusion is that velocity error of integrated navigation system drops from 0.5m/s to below 0.05m/s
and improves the precision and reliability of the navigation system effectively
well continuity and real-time capability. It provides an effective way for data analysis and process of fusion navigation system. 2006 IEEE.
舰船 C4I 集成的若干实时元素特性研究
学位论文
OAI收割
工学博士, 中国科学院自动化研究所: 中国科学院研究生院, 2005
作者:
雷飞
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浏览/下载:94/0
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提交时间:2015/09/02
多 Agent
实时系统集成
实时控制
多机调度
协同设计
multi-agent
integration of real-time system
real-time control