中国科学院机构知识库网格系统: 检索

Design and Analysis of Radiometric Calibration Mission in-orbit for Environment and Disasters Monitoring Satellite 会议论文 OAI收割
Yokohama, Japan, 2019-07-28
作者: Zhu, Yang; Zhu, Jun; Bai, Zhaoguang; Dong, Jun; Wu, Bin

|

收藏 | 浏览/下载：56/0 | 提交时间：2020/03/10

environment and disasters monitoring in-orbit radiometric calibration side-slither calibration along track scanning satellite attitude stability

Relative attitude formation control of multi-agent systems 期刊论文 OAI收割
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL, 2017, 卷号: 27, 期号: 18, 页码: 4457-4477
作者: Song, W.; Tang, Y.; Hong, Y.; Hu, X.

|

收藏 | 浏览/下载：19/0 | 提交时间：2018/07/30

attitude control multi-agent systems attitude formation joint connectivity asymptotic stability

Intrinsic reduced attitude formation with ring inter-agent graph 期刊论文 OAI收割
AUTOMATICA, 2017, 卷号: 85, 页码: 193-201
作者: Song, Wenjun

|

收藏 | 浏览/下载：19/0 | 提交时间：2018/07/30

Attitude control Distributed control Asymptotic stability Nonlinear systems Linearization

Attitude stability of a dual-spin spacecraft on a stationary orbit around an asteroid subjected to gravity gradient torque 期刊论文 OAI收割
ASTROPHYSICS AND SPACE SCIENCE, 2015, 卷号: 355, 期号: 2, 页码: 203-212
作者: Zhang, Ming-Jiang; Zhao, Chang-Yin

收藏 | 浏览/下载：30/0 | 提交时间：2015/12/03

Attitude stability Dual-spin spacecraft Asteroid Conditions of stability

Attitude stability of a spacecraft with two flexible solar arrays on a stationary orbit around an asteroid subjected to gravity gradient torque 期刊论文 OAI收割
ASTROPHYSICS AND SPACE SCIENCE, 2014, 卷号: 351, 期号: 2, 页码: 507-524
作者: Zhang, Ming-Jiang; Zhao, Chang-Yin

收藏 | 浏览/下载：31/0 | 提交时间：2014/11/20

Spacecraft Asteroid Attitude stability Sufficient conditions of stability Stability domain

Reliable attitude stability control of quad-rotor based on fault-tolerant approach (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: Gao Q.

收藏 | 浏览/下载：46/0 | 提交时间：2013/03/25

The reliability flight property has received much attention within the aircraft control community throughout the last decades. In this paper the fault-tolerant control technique is introduced into the attitude stability control system of a quadrotor UAV in order to compensate the influence of the actuators fault of the aircraft. This control scheme is composed of two components: a robust fault detection module using the modelbased observation approach and a reconfigurable controller. Besides the designing procedure the theoretical analysis of robustness and stability of the designed FTC scheme are also contained in this article. And finally the availability of the proposed scheme is verified through numerical simulation. 2012 IEEE.

Adaptive control at launching using three loop autopilot (EI CONFERENCE) 会议论文 OAI收割
2011 2nd International Conference on Mechanic Automation and Control Engineering, MACE 2011, July 15, 2011 - July 17, 2011, Inner Mongolia, China
作者: Zhang Y.

收藏 | 浏览/下载：28/0 | 提交时间：2013/03/25

In order to guarantee the precise initial flight trajectory control the missile disturbance of large disturbance torque three loop adaptive autopilot was researched. The characteristics of the projectile and three loop autopilot instruction formation characteristics were analysed. From equivalent pitching angle of lateral acceleration feedback loop combined with the instruction of generalized error autopilot structure was simplified and three loop autopilot adaptive control law and stability were designed. The test data show that when disturbance torque was 600Nm the attitude angle generalized error was -4.4. In the time lasted about 15s late trajectory accuracy was within 1.0.Three loop autopilot adaptive control law was able to control the disturbance of initial trajectory and adapt to dynamic characteristics changes control system stability. It was the initial trajectory accurate solution method of flight. 2011 IEEE.

Optical axis stabilization of semi-strapdown seeker based on disturbance observer (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
Sun G.; Zhu M.; Yin S.; Jia H.

收藏 | 浏览/下载：28/0 | 提交时间：2013/03/25

Based on the kinematics of semi-strapdown seeker the framework coordinate of the seeker is established. The optical axis stability equation of semi-strapdown seeker is deduced by using attitude transformation matrix. Then the stability control principle block diagram of semi-strapdown seeker is shown based on the stability equation. The main factors that influence the stabilization precision are pointed out such as friction disturbance velocity-measuring noise and missile disturbance. In order to improve the stabilization precision disturbance observer was proposed in semi-strapdown seeker stability control. The low frequency external disturbance and high frequency velocity measurement noise are effectively restrained by the disturbance observer as shown in hardware-in-loop simulation and optical axis stabilization precision is improved nearly 20 times and 5 times due to two different frequencies with same amplitude. 2011 IEEE.

Effect of platform attitude stability on image quality of spatially modulated imaging fourier transform spectrometer 会议论文 OAI收割
3rd international symposium on information science and engineering, isise 2010, shanghai, china, december 14, 2010 - december 26, 2010
作者: WeiRuyi; JingJuanjuan; Jing Juanjuan

收藏 | 浏览/下载：19/0 | 提交时间：2012/07/09

SMIFTS collinearity equations image motion platform attitude stability

Earth elevation map production and high resolution sensing camera imaging analysis (EI CONFERENCE) 会议论文 OAI收割
Optoelectronic Imaging and Multimedia Technology, October 18, 2010 - October 20, 2010, Beijing, China
作者: Dai L.

收藏 | 浏览/下载：148/0 | 提交时间：2013/03/25

The Earth's digital elevation which impacts space camera imaging has prepared and imaging has analysed. Based on matching error that TDI CCD integral series request of the speed of image motion statistical experimental methods-Monte Carlo method is used to calculate the distribution histogram of Earth's elevation in image motion compensated model which includes satellite attitude changes orbital angular rate changes latitude longitude and the orbital inclination changes. And then elevation information of the earth's surface from SRTM is read. Earth elevation map which produced for aerospace electronic cameras is compressed and spliced. It can get elevation data from flash according to the shooting point of latitude and longitude. If elevation data between two data the ways of searching data uses linear interpolation. Linear interpolation can better meet the rugged mountains and hills changing requests. At last the deviant framework and camera controller are used to test the character of deviant angle errors TDI CCD camera simulation system with the material point corresponding to imaging point model is used to analyze the imaging's MTF and mutual correlation similarity measure simulation system use adding cumulation which TDI CCD imaging exceeded the corresponding pixel horizontal and vertical offset to simulate camera imaging when stability of satellite attitude changes. This process is practicality. It can effectively control the camera memory space and meet a very good precision TDI CCD camera in the request matches the speed of image motion and imaging. 2010 SPIE.