The Experts below are selected from a list of 254445 Experts worldwide ranked by ideXlab platform
Yongtian Wang - One of the best experts on this subject based on the ideXlab platform.
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studying contrast transfer function of remote sensor with Physical Simulation system
Optics and Lasers in Engineering, 2005Co-Authors: Peng Xu, Changning Huang, Yongtian WangAbstract:Abstract A Physical Simulation system is developed for studying the characteristics of targets and backgrounds in order to determine the parameters of remote sensors. A scaling zoom model is constructed, allowing us to change the light condition, camera parameters and the target/background. The values of the contrast transfer function with respect to different targets and backgrounds are measured based on the scaling zoom model, and the results are compared with the values of the calculated contrast transfer function.
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Physical Simulation system for studying contrast transfer function of remote sensor
Optical Design and Testing, 2002Co-Authors: Peng Xu, Changning Huang, Yongtian WangAbstract:Studying the characteristics of target and background is very important to determine the parameters of the remote sensor and the light condition. We have established a Physical Simulation system for studying the contrast transfer function (CTF), allowing us to change light condition; camera parameters, such as relative aperture, TDI factor, incline angle; the target and background. We measured the CTF with different target and background, and compared the results with calculated CTF.
Peng Xu - One of the best experts on this subject based on the ideXlab platform.
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studying contrast transfer function of remote sensor with Physical Simulation system
Optics and Lasers in Engineering, 2005Co-Authors: Peng Xu, Changning Huang, Yongtian WangAbstract:Abstract A Physical Simulation system is developed for studying the characteristics of targets and backgrounds in order to determine the parameters of remote sensors. A scaling zoom model is constructed, allowing us to change the light condition, camera parameters and the target/background. The values of the contrast transfer function with respect to different targets and backgrounds are measured based on the scaling zoom model, and the results are compared with the values of the calculated contrast transfer function.
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Physical Simulation system for studying contrast transfer function of remote sensor
Optical Design and Testing, 2002Co-Authors: Peng Xu, Changning Huang, Yongtian WangAbstract:Studying the characteristics of target and background is very important to determine the parameters of the remote sensor and the light condition. We have established a Physical Simulation system for studying the contrast transfer function (CTF), allowing us to change light condition; camera parameters, such as relative aperture, TDI factor, incline angle; the target and background. We measured the CTF with different target and background, and compared the results with calculated CTF.
Changning Huang - One of the best experts on this subject based on the ideXlab platform.
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studying contrast transfer function of remote sensor with Physical Simulation system
Optics and Lasers in Engineering, 2005Co-Authors: Peng Xu, Changning Huang, Yongtian WangAbstract:Abstract A Physical Simulation system is developed for studying the characteristics of targets and backgrounds in order to determine the parameters of remote sensors. A scaling zoom model is constructed, allowing us to change the light condition, camera parameters and the target/background. The values of the contrast transfer function with respect to different targets and backgrounds are measured based on the scaling zoom model, and the results are compared with the values of the calculated contrast transfer function.
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Physical Simulation system for studying contrast transfer function of remote sensor
Optical Design and Testing, 2002Co-Authors: Peng Xu, Changning Huang, Yongtian WangAbstract:Studying the characteristics of target and background is very important to determine the parameters of the remote sensor and the light condition. We have established a Physical Simulation system for studying the contrast transfer function (CTF), allowing us to change light condition; camera parameters, such as relative aperture, TDI factor, incline angle; the target and background. We measured the CTF with different target and background, and compared the results with calculated CTF.
Yuanjin Yu - One of the best experts on this subject based on the ideXlab platform.
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a semi Physical Simulation platform of attitude determination and control system for satellite
Advances in Mechanical Engineering, 2016Co-Authors: Yuanjin Yu, Zhaohua YangAbstract:A semi-Physical Simulation platform for attitude determination and control system is proposed to verify the attitude estimator and controller on ground. A Simulation target, a host PC, many attitude sensors, and actuators compose the Simulation platform. The Simulation target is composed of a central processing unit board with VxWorks operating system and many input/output boards connected via Compact Peripheral Component Interconnect bus. The executable programs in target are automatically generated from the Simulation models in Simulink based on Real-Time Workshop of MATLAB. A three-axes gyroscope, a three-axes magnetometer, a sun sensor, a star tracer, three flywheels, and a Global Positioning System receiver are connected to the Simulation target, which formulates the attitude control cycle of a satellite. The Simulation models of the attitude determination and control system are described in detail. Finally, the semi-Physical Simulation platform is used to demonstrate the availability and rationality of the control scheme of a micro-satellite. Comparing the results between the numerical Simulation in Simulink and the semi-Physical Simulation, the semi-Physical Simulation platform is available and the control scheme successfully achieves three-axes stabilization.
Qian Wei-xing - One of the best experts on this subject based on the ideXlab platform.
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Semi-Physical Simulation of Transfer Alignment and Navigation Integration
Journal of Naval Aeronautical and Astronautical University, 2009Co-Authors: Qian Wei-xingAbstract:Developing semi-Physical Simulation system is of important significance and application value in engineering realization of navigation system on airborne equipment.Based on the real application of navigation system,the realization method of transfer alignment and strap-down solution was analyzed,and "specific force integrated" match algorithm was studied.A new strap-down attitude algorithm based on four steps Rungekutta algorithm was put forward,and navigation semi-Physical Simulation system was designed based on a DSP navigation computer.Simulation results show the semi-Physical Simulation system is stable and reliable.Result indicates that transfer alignment and strap-down solution has high precision with the help of algorithm discussed in this paper,and can satisfy the requirement of the navigation system under low maneuver.
