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长春光学精密机械与物... [4]
沈阳自动化研究所 [4]
近代物理研究所 [2]
合肥物质科学研究院 [1]
西安光学精密机械研究... [1]
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OAI收割 [12]
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会议论文 [6]
期刊论文 [6]
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2020 [1]
2019 [2]
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NO_2电化学传感器的零点漂移校正研究
期刊论文
OAI收割
传感技术学报, 2020, 卷号: 33
作者:
黄崇崇
;
胡仁志
;
谢品华
;
靳华伟
;
林川
  |  
收藏
  |  
浏览/下载:31/0
  |  
提交时间:2021/11/29
electrochemical sensor
zero drift
humidity compensation
quadratic regression
电化学传感器
零点漂移
湿度补偿
二次回归
Low-level radio-frequency system upgrade for the IMP Heavy Ion Reach Facility in Lanzhou (HIRFL)
期刊论文
OAI收割
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2019, 卷号: 925, 页码: 76-86
作者:
Cong, Yan
;
Xu, Shaofan
;
Zhou, Wenxiong
;
Wang, Haoning
;
Ren, Hongwen
  |  
收藏
  |  
浏览/下载:85/0
  |  
提交时间:2019/11/10
LLRF
PI filter
Temperature drift compensation
Digital down conversion
Phase modulation suppression
Research on analysis and compensation of the super-luminescent diodes light source
期刊论文
OAI收割
optical technology, 2016, 卷号: 42, 期号: 1, 页码: 5-9
作者:
Liu Ying
;
Xu Jintao
;
Qin Bo
收藏
  |  
浏览/下载:28/0
  |  
提交时间:2016/10/21
SLD
drift
FOG
compensation
Drift Compensation in AFM-Based Nanomanipulation by Strategic Local Scan
期刊论文
OAI收割
IEEE TRANSACTIONS ON AUTOMATION SCIENCE AND ENGINEERING, 2012, 卷号: 9, 期号: 4, 页码: 755-762
作者:
Li GY(李广勇)
;
Wang, Yucai
;
Liu LQ(刘连庆)
收藏
  |  
浏览/下载:30/0
  |  
提交时间:2012/11/29
Atomic force microscope (AFM)
drift compensation
nanomanipulation
Design of motion compensation mechanism of satellite remote sensing camera (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Gu S.
;
Yan Y.
;
Xu K.
;
Jin G.
收藏
  |  
浏览/下载:47/0
  |  
提交时间:2013/03/25
With the development of aerospace remote sensing technology
the ground resolution of remote sensing camera enhances continuously. Since there is relative motion between camera and ground target when taking pictures
the target image recorded in recording media is moved and blurred. In order to enhance the imaging quality and resolution of the camera
the image motion had to be compensated. In order to abate the effect of image motion to image quality of space camera and improve the resolution of the camera
the compensation method of image motion to space camera is researched. First
the reason of producing drift angle and adjustment principle are analyzed in this paper. This paper introduce the composition and transmission principle of image motion compensation mechanism. Second
the system adopts 80C31 as controller of drift angle
and adopts stepping motor for actuators
and adopts absolute photoelectric encoder as the drift Angle measuring element. Then the control mathematical model of the image motion compensation mechanism are deduced
and it achieve the closed-loop control of the drift angle position. At the last
this paper analyses the transmission precision of the mechanism. Through the experiment
we measured the actual precision of the image motion compensation mechanism
and compared with the theoretical analysis. There are two major contributions in this paper. First
the traditional image motion compensation mechanism is big volume and quality heavy. This has not fit for the development trend of space camera miniaturization and lightweight. But if reduce the volume and quality of mechanism
it will bring adverse effects for the precision and stiffness of mechanism. For this problem
This paper designed a image motion compensation that have some advantages such as small size
light weight at the same time
high precision
stiffness and so on. This image motion compensation can be applicable to the small optics cameras with high resolution. Second
the traditional mechanism control need to corrected
fitting and iterative for the control formula of mechanism. Only in this way
we can get the optimal control mathematical model. This paper has high precision of the control formula derived. It can achieve the high precision control without fitting
It also simplify the difficulty of control mathematical model establishment. This paper designed the range of adjusting of image motion compensation mechanism between -5 +5. Based on choosing-5
-4
-3
-2
-1
0
+1
+2
+3
+4
+4 as the expectation value of the imaginary drift angle
we get ten groups of the fact data in adjusting drift angle measured. The test results show that the precision of the drift angle control system can be achieved in 1. It can meet the system requirements that the precision of the control system is less than 3'
and it can achieve the high-precision image motion compensation. 2011 SPIE.
Control strategies and error compensation methods of high precision gyro stabilized platform (EI CONFERENCE)
会议论文
OAI收割
30th Chinese Control Conference, CCC 2011, July 22, 2011 - July 24, 2011, Yantai, China
Deng K.
;
Cong S.
;
Shen H.
收藏
  |  
浏览/下载:27/0
  |  
提交时间:2013/03/25
Based on the principle of gyroscope and the structure of gyro stabilized platform
this paper gives the analysis and comparison of control strategies for stable platform included classical PID control
and three kinds of advanced strategies: Fuzzy Control
Sliding Mode Variable Structure Control and Active Disturbance Rejection Control. The compensation methods for stable platform's error are also discussed and evaluated based on the sources of error
especially for the non-linear friction and gyro drift. The paper provides the reliable methods for recognizing and improving the accuracy of gyro stabilized platform from the control strategies and error compensations. 2011 Chinese Assoc of Automation.
Error compensation algorithm in wireless sensor networks synchronisation
期刊论文
OAI收割
INTERNATIONAL JOURNAL OF SENSOR NETWORKS, 2011, 卷号: 10, 期号: 3, 页码: 123-131
作者:
Wang FQ(汪付强)
;
Zeng P(曾鹏)
;
Yu HB(于海斌)
;
Xiao Y(肖杨)
  |  
收藏
  |  
浏览/下载:19/0
  |  
提交时间:2012/05/29
Wsns
Wireless Sensor Networks
Time Synchronisation
Clock Drift
Compensation Algorithm
High precision test method for dynamic imaging of space camera (EI CONFERENCE)
会议论文
OAI收割
2010 IEEE International Conference on Advanced Computer Control, ICACC 2010, March 27, 2010 - March 29, 2010, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States
作者:
Jin L.-X.
;
Zhang K.
;
Zhang K.
;
Zhang K.
;
Zhang K.
收藏
  |  
浏览/下载:26/0
  |  
提交时间:2013/03/25
A test method for dynamic imaging of space TDICCD (Time Delay and Integration Charge Coupled Devices) camera was presented in this paper. The test method adopted the PLL (Phase Locked Loop) technology and CMAC (Cerebella Model Articulation Controller) friction compensation as control strategy. Furthermore
According to this method
a test system for dynamic imaging of space TDICCD camera was designed and implemented. The system simulated the movement of the ground objects relative to the space aerocraft
to validate the capability of image speed match and the dynamic imaging quality of TDICCD camera. The design adopted a precision turntable and a drift turntable to simulate the movement around the earth and the drift motion in different latitude due to the rotation of earth
of the aerocraft. The turntables were drived by permanent magnet torque motor which was powered by PWM (Pulse Width Modulation). The system adopted DSP (Digital Signal Processor) as the control core and reached a very high performance. The experimental results showed that the steady speed error was better than 0.01 % and the instantaneous speed error reached 0.0267%. The precision of the test system designed met the requirement for dynamic imaging of TDICCD camera. 2010 IEEE.
Dynamic closed-loop test for real-time drift angle adjustment of space camera on the Earth (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:
Xu S.
;
Wang D.
收藏
  |  
浏览/下载:35/0
  |  
提交时间:2013/03/25
In order to eliminate the influence of aircraft attitude angle to the image quality of space camera
and assure that the drift angle of space camera could be accurately adjusted at the orbit
a novel closed-loop test method is provided for real-time drift angle adjustment of space camera on the Earth. A long focal length dynamic aim generator is applied to simulate the image motion and the variety drift angle
and to detect the precision of the image motion compensation machinery and the capability of the drift angle control system. The computer system is used to control the dynamic aim generator
accomplish the data processing
transmit and receive the data information. The seamless connection and the data transmission between the aim generator and the aircraft simulation devices are constituted. The command
parameter and drift angle data transmitted by the simulation devices are received by the space camera at the real time
then the photos are taken and the draft angle is adjusted simultaneously. It is shown that the drift angle can be accurately tracked by the space camera at the real time
and the detective method satisfies the test requirement. 2010 Copyright SPIE - The International Society for Optical Engineering.