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CAS IR Grid
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长春光学精密机械与物... [4]
自动化研究所 [2]
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OAI收割 [6]
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会议论文 [4]
期刊论文 [2]
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2017 [1]
2015 [1]
2011 [1]
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A Bio-Inspired Robot With Undulatory Fins and Its Control Methods
期刊论文
OAI收割
IEEE-ASME TRANSACTIONS ON MECHATRONICS, 2017, 卷号: 22, 期号: 1, 页码: 206-216
作者:
Wang, Shuo
;
Wang, Yu
;
Wei, Qingping
;
Tan, Min
;
Yu, Junzhi
收藏
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浏览/下载:67/0
  |  
提交时间:2017/05/05
Bio-inspired robot
course control
depth control
waypoint tracking
Course and Depth Control for a Biomimetic Underwater Vehicle - RobCutt-I
期刊论文
OAI收割
INTERNATIONAL JOURNAL OF OFFSHORE AND POLAR ENGINEERING, 2015, 卷号: 25, 期号: 2, 页码: 81-87
作者:
Wei, Qingping
;
Wang, Shuo
;
Wang, Yu
;
Zhou, Chao
;
Tan, Min
收藏
  |  
浏览/下载:56/0
  |  
提交时间:2015/09/17
Biomimetic underwater vehicle (BUV)
undulating fin
Active Disturbance Rejection Control (ADRC)
course control
depth control
The ship-borne infrared searching and tracking system based on the inertial platform (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China
作者:
Li Y.
;
Zhang H.
;
Zhang H.
;
Li Y.
;
Li Y.
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  |  
浏览/下载:34/0
  |  
提交时间:2013/03/25
As a result of the radar system got interferenced or in the state of half silent
it can cause the guided precision drop badly In the modern electronic warfare
therefore it can lead to the equipment depended on electronic guidance cannot strike the incoming goals exactly. It will need to rely on optoelectronic devices to make up for its shortcomings
but when interference is in the process of radar leading
especially the electro-optical equipment is influenced by the roll
pitch and yaw rotation
it can affect the target appear outside of the field of optoelectronic devices for a long time
so the infrared optoelectronic equipment can not exert the superiority
and also it cannot get across weapon-control system "reverse bring" missile against incoming goals. So the conventional ship-borne infrared system unable to track the target of incoming quickly
the ability of optoelectronic rivalry declines heavily.Here we provide a brand new controlling algorithm for the semi-automatic searching and infrared tracking based on inertial navigation platform. Now it is applying well in our XX infrared optoelectronic searching and tracking system. The algorithm is mainly divided into two steps: The artificial mode turns into auto-searching when the deviation of guide exceeds the current scene under the course of leading for radar.When the threshold value of the image picked-up is satisfied by the contrast of the target in the searching scene
the speed computed by using the CA model Least Square Method feeds back to the speed loop. And then combine the infrared information to accomplish the closed-loop control of the infrared optoelectronic system tracking. The algorithm is verified via experiment. Target capturing distance is 22.3 kilometers on the great lead deviation by using the algorithm. But without using the algorithm the capturing distance declines 12 kilometers. The algorithm advances the ability of infrared optoelectronic rivalry and declines the target capturing time by using semi-automatic searching and reliable capturing-tracking
when the lead deviation of the radar is great. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).
Study on dynamic imaging on TDI CCD optical remote sensor of push-broom technology (EI CONFERENCE)
会议论文
OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China
作者:
Liu L.
;
Ren J.-Y.
;
Liu L.
;
Gao M.-H.
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浏览/下载:21/0
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提交时间:2013/03/25
A set special detecting system is proposed based on TDICCD push-broom technology applying in dynamic imaging detecting experiment of space optics remote sensor. In the system
In the course of detecting
push-broom movement of the satellite is simulated through using double supporting U structure precision rotary platform with remote sensor by angular speed 0.555/s
regard Nyquist frequency target as detecting aim
within the range of 5 and control precision on steady speed achieves 0.3%
in order to solve matching uncertainty between the CCD pixel and the vertical target strip image when the remote sensor does push-broom
make matching simplify
enhance the measurement result the accuracy. So the tolerance a/n arithmetic progression gap target strip is joined in each group of rectangular vertical group target strip. The remote sensor obtains in vertical
the level and 45 the direction 0 fields of view
0.86 the field of view Nyquist frequency target strip image after detected
a group target strip which can precision matching to TDICCD pixel at least can be obtained through analysis and dealing with 0.86 field of view's target strip image. The experiment not only verifies the detecting system's feasibility but simultaneously verifies whether to have the high quality dynamic imaging quality when TDICCD push-broom technology is adopted on the remote sensor developed. 2010 Copyright SPIE - The International Society for Optical Engineering.
Key techniques of laser direct writing patterns on spherical substrate (EI CONFERENCE)
会议论文
OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems, July 8, 2007 - July 12, 2007, Chengdu, China
作者:
Zhao J.-L.
;
Feng X.-G.
收藏
  |  
浏览/下载:23/0
  |  
提交时间:2013/03/25
Comparing with the writing method of plane pattern
spherical pattern' has some remarkable different on several points. Firstly
it is difficult to spin-coated a uniform photoresist film on a spherical substrate
especially the ratio of spherical radius to caliber is smaller
and the spin-coated way must match the ratio of spherical radius to caliber. Secondly
if the sphere couldn't be regarded as a plane
a so-called concentric optical scan movement way must be applied for the generation of spherical pattern
because the reflex of substrate will affect the quantity of illumination. Commonly
an alignment technique is indispensable with pattern generation of spherical surface by the concentric optical scan in order to ensure the orthogonal intersection of focusing laser beam and writing surface. Thirdly
a uniform velocity control must be considered for the laser direct writing method on a spherical substrate. Otherwise
the exposure time of photoresist will be different
and the line widths of pattern will be also different at different areas. Fourthly
commonly
because the errors of concentric machine and substrate surface shape are bigger
so focusing servo-control technique is also needful for writing a pattern on a spherical substrate. Focusing servo-control may keep the focal spot on the spherical surface by a focus detection and control system in the course of writing pattern. Using these techniques
we fabricated a line width of 7m and a period of 600m isometric mesh on the concave of a spherical substrate.
The study on the near infrared spectrum technology of sauce component analysis (EI CONFERENCE)
会议论文
OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者:
Li S.
;
Wang C.
;
Chen X.
;
Chen X.
;
Chen X.
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浏览/下载:34/0
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提交时间:2013/03/25
The author
Shangyu Li
engages in supervising and inspecting the quality of products. In soy sauce manufacturing
quality control of intermediate and final products by many components such as total nitrogen
saltless soluble solids
nitrogen of amino acids and total acid is demanded. Wet chemistry analytical methods need much labor and time for these analyses. In order to compensate for this problem
we used near infrared spectroscopy technology to measure the chemical-composition of soy sauce. In the course of the work
a certain amount of soy sauce was collected and was analyzed by wet chemistry analytical methods. The soy sauce was scanned by two kinds of the spectrometer
the Fourier Transform near infrared spectrometer (FT-NIR spectrometer) and the filter near infrared spectroscopy analyzer. The near infrared spectroscopy of soy sauce was calibrated with the components of wet chemistry methods by partial least squares regression and stepwise multiple linear regression. The contents of saltless soluble solids
total nitrogen
total acid and nitrogen of amino acids were predicted by cross validation. The results are compared with the wet chemistry analytical methods. The correlation coefficient and root-mean-square error of prediction (RMSEP) in the better prediction run were found to be 0.961 and 0.206 for total nitrogen
0.913 and 1.215 for saltless soluble solids
0.855 and 0.199 nitrogen of amino acids
0.966 and 0.231 for total acid
respectively. The results presented here demonstrate that the NIR spectroscopy technology is promising for fast and reliable determination of major components of soy sauce.