| 基于球谐函数的三轴光电跟踪系统误差修正方法 |
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| 引用本文： | 刘兴法,岑明. 基于球谐函数的三轴光电跟踪系统误差修正方法[J]. 光电工程, 2007, 34(12): 1-6 |
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| 作者姓名： | 刘兴法 岑明 |
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| 作者单位： | 中国科学院光电技术研究所,四川,成都,610209;重庆邮电大学,自动化学院,重庆,400065 |
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| 基金项目： | 国家高技术研究发展计划(863计划) , 重庆市教委科学基金 |
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| 摘 要： | 三轴光电跟踪系统不存在空间跟踪盲区，为了提高系统引导或轨道测量精度，需要修正其系统误差。最小二乘系统误差修正方法精度较低，球谐函数系统误差修正有较高的修正精度，球谐函数系统误差修正方法应用到三轴光电跟踪系统中时存在困难。理论分析指出，应用球谐函数的系统误差修正需要在三轴光电跟踪系统中针对不同的方位建立多组修正参数。仿真表明，三轴光电跟踪系统中通过建立多组修正参数的球谐函数系统误差修正方法可以把系统误差降低到原来的30％。
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| 关 键 词： | 光电跟踪 系统误差 球谐函数 三轴跟踪架 |
| 文章编号： | 1003-501X(2007)12-0001-05 |
| 收稿时间： | 2007-07-18 |
| 修稿时间： | 2007-07-18 |
System error modification method based on global-function for three-axis optoelectronic tracking system |
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| LIU Xing-fa,CEN Ming. System error modification method based on global-function for three-axis optoelectronic tracking system[J]. Opto-Electronic Engineering, 2007, 34(12): 1-6 |
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| Authors: | LIU Xing-fa CEN Ming |
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| Abstract: | Three-axis optoelectronic tracking system has no blind region in space. Correction of the system errors of three-axis optoelectronic tracking system can improve the leading precision and measure precision. Although least squares system error modification method has lower precision than global-function method, it is difficult for three-axis optoelectronic tracking system to use global-function system error modification method. Theoretical analysis proves that many groups of modification parameters need obtaining when using global-function system error modification method in three-axis optoelectronic tracking system. Simulation also demonstrates that the error modification method of building many groups of modification parameters of global-function in three-axis optoelectronic tracking system can reduce system error about 70%. |
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| Keywords: | optoelectronic tracking system errors global-function three-axis gimbal |
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