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	Stochastic and dynamic modeling of MEMS gyroscopes (EI CONFERENCE) 会议论文 OAI收割 2012 9th IEEE International Conference on Mechatronics and Automation, ICMA 2012, August 5, 2012 - August 8, 2012, Chengdu, China 作者: Wang Y.; Wang Y.; Wang Y.; Wang Y.; Wang Y. 收藏 \| 浏览/下载：30/0 \| 提交时间：2013/03/25 The paper introduce two methods to identify the MEMS gyroscope Allan variance method and AR(n) model. Both the method has broadly used in engineering. Through the two method the statistical mathematical properties and dynamic system properties of MEMS gyroscope are proclaimed. 2012 IEEE.
	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.
	Image forward motion compensation method for some aerial reconnaissance camera based on neural network predictive control (EI CONFERENCE) 会议论文 OAI收割 International Conference on Advanced Research on Computer Science and Information Engineering, CSIE 2011, May 21, 2011 - May 22, 2011, Zhengzhou, China Zhong C.; Ding Y.; Fu J. 收藏 \| 浏览/下载：30/0 \| 提交时间：2013/03/25 In this paper neural network predictive control method is used to compensate the image forward motion of a certain aerial reconnaissance camera and we have solved several problems that traditional control methods have. Firstly according to the principle of imaging we analyzed the reasons for the existence of image forward motion and established the mathematical model. Secondly we analyzed the theoretically feasibility of the method. At last simulation experiments and test are used to validate the practical feasibility. Through what we have done we conclude that neural network predictive control method can be used to compensate image forward motion for this certain camera and can make a perfect performance. 2011 Springer-Verlag.
	Dynamic optimum design and analysis of cam wave generator for harmonic gear drive (EI CONFERENCE) 会议论文 OAI收割 2011 International Conference on Information and Automation, ICIA 2011, June 6, 2011 - June 8, 2011, Shenzhen, China Xiao Q.; Han X.; Jia H. 收藏 \| 浏览/下载：27/0 \| 提交时间：2013/03/25 Mathematical models of structural optimization were established for the cam wave generator then a conceptual model by integrally taking its static and dynamic performance into consideration which satisfied the model acted by four concentrated forces while the dynamic optimum design was carried out. The topology optimization of the cam wave generator was performed based on artificial material density method was obtained. And the size optimization of the cam wave generator was also executed based on the zero-order method in software Ansys after setting up its parameterized model. The optimized results indicate that its final volume declines to 1284.217mm3 from its 1397.830mm3 which reduced by 42.18% than the original volume of cam (2221.224mm3). Simultaneously the static analysis and modal analysis were implemented and the results show that the static and dynamic performance complies with the design requirements proving that the results of dynamic optimum design are reasonable. The optimized results in paper are realizable in engineering. And the study method provides not only a reference to decreasing design mass and lowering inertia of the cam wave generator but also an important basis of lightweight design of harmonic gear drive. 2011 IEEE.
	Improved algorithm of LED display image based on composed correction (EI CONFERENCE) 会议论文 OAI收割 International Conference on Advances in Computer Science, Environment, Ecoinformatics, and Education, CSEE 2011, August 21, 2011 - August 22, 2011, Wuhan, China Song X.-J.; Ma X.-Q.; Liu W.-Y.; Zheng X.-F. 收藏 \| 浏览/下载：17/0 \| 提交时间：2013/03/25 In order to enhance the display result of the LED display image an improved algorithm of LED display image based on composed correction is proposed. Firstly the correction principle and the development status of the current correction technologies of the LED display image is introduced and the two main correction technologies are analyzed. Secondly the theory of composed correction is proposed by constructing a mathematical model. Thirdly this algorithm is achieved in VHDL which is one of hardware description language and verified in an experimental platform. Experimental results show that this algorithm is able to enhance the display result of the LED display image significantly. 2011 Springer-Verlag Berlin Heidelberg.
	Mathematical Model and Its Application of Radial Effective Thermal Conductivity for Coil Heat Transfer in HPH Furnace 期刊论文 OAI收割 JOURNAL OF THERMAL SCIENCE, 2002, 卷号: 11, 期号: 2, 页码: 134,137 Wenfei Wu; Fan Yu; Xinxin Zhang; Yi Zuo 收藏 \| 浏览/下载：20/0 \| 提交时间：2013/03/12 HPH furnace thermal conductivity heat transfer mathematical model.
	Mathematical Model and Its Application of Radial Effective Thermal Conductivity for Coil Heat Transfer in HPH Furnace 期刊论文 OAI收割 JOURNAL OF THERMAL SCIENCE, 2002, 卷号: 11, 期号: 2, 页码: 134,137 作者: Wenfei Wu; Fan Yu; Xinxin Zhang; Yi Zuo \| 收藏 \| 浏览/下载：16/0 \| 提交时间：2013/03/12 Hph Furnace Thermal Conductivity Heat Transfer Mathematical Model.
	A Mathematical Model for Differential-Velocity Circulating Fluidized Bed Boiler* 期刊论文 OAI收割 JOURNAL OF THERMAL SCIENCE, 1999, 卷号: 8, 期号: 3, 页码: 196,201 Li Zhao; Xiangdong Xu 收藏 \| 浏览/下载：11/0 \| 提交时间：2013/03/12 mathematical model fluidized bed cell model.
	A Mathematical Model for Differential-Velocity Circulating Fluidized Bed Boiler* 期刊论文 OAI收割 JOURNAL OF THERMAL SCIENCE, 1999, 卷号: 8, 期号: 3, 页码: 196,201 作者: Li Zhao; Xiangdong Xu \| 收藏 \| 浏览/下载：10/0 \| 提交时间：2013/03/12 Mathematical Model Fluidized Bed Cell Model.