| 空间光通信卫星平台振动实时模拟 |
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| 引用本文： | 陈纯毅,杨华民,佟首峰,蒋振刚.空间光通信卫星平台振动实时模拟[J].系统仿真学报,2007,19(16):3834-3837. |
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| 作者姓名： | 陈纯毅 杨华民 佟首峰 蒋振刚 |
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| 作者单位： | 1. 长春理工大学计算机科学技术学院,长春,130022
2. 长春理工大学光电工程学院,长春,130022 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 根据SILEX和Landsat平台振动功率谱设计滤波器的幅频响应,通过滤波器对高斯白噪声进行滤波来模拟生成平台振动信号。用Matlab的Real-Time Windows Target把滤波器的Simulink仿真模型转换为实时程序。把程序模拟生成的方位和俯仰振动信号分别输出给两个正交放置的摆镜,通过摆镜的摆动来模拟平台振动对激光束光轴方向的影响。通过使用CCD对激光光斑脱靶量进行实时检测并分析脱靶量功率谱,验证了模拟结果的可信度。
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| 关 键 词： | 实时模拟与仿真 光通信 卫星 |
| 文章编号： | 1004-731X（2007）16-3834-04 |
| 收稿时间： | 2006-06-21 |
| 修稿时间： | 2006-06-212007-06-04 |
Real-time Simulation of Satellite-platform Vibration of Space Optical Communication |
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| CHEN Chun-yi,YANG Hua-min,TONG Shou-feng,JIANG Zhen-gang.Real-time Simulation of Satellite-platform Vibration of Space Optical Communication[J].Journal of System Simulation,2007,19(16):3834-3837. |
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| Authors: | CHEN Chun-yi YANG Hua-min TONG Shou-feng JIANG Zhen-gang |
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| Institution: | l.Computer School, Changchun University of Science and Technology, Changchun 130022, China; 2.Optoelectronic Engineering School, Changchun University of Science and Technology; Changchun 130022, China |
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| Abstract: | The amplitude-frequency response of a filter was designed according to the power spectral density of platform vibration of SILEX (Semiconductor Inter-satellite Laser Experiment) and Landsat, and then the signals of platform vibration were generated by filtering white Gaussian noise using the filter. A real-time program was built based on the Simulink model of the filter using Real-Time Windows Target of Matlab. The platform-vibration signals of azimuth and elevation generated by the program were output to two steering mirrors, orthogonally mounted, respectively, and drive them to steer for simulating the effect of platform vibration on direction of axis of laser beam. The power spectral density of miss distance of laser spot was computed and analyzed on the basis of detection of miss distance of the laser spot using a CCD, and then the creditability of simulated results was validated. |
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| Keywords: | APT |
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