| 一种火炮动态性能测试系统测角精度的测量方法 |
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| 引用本文： | 张凯,付跃刚,王志坚.一种火炮动态性能测试系统测角精度的测量方法[J].应用光学,2009,30(1):73-75. |
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| 作者姓名： | 张凯 付跃刚 王志坚 |
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| 作者单位： | 长春理工大学光电工程学院,吉林长春,130022 |
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| 摘 要： | 在先进的火炮动态性能测试系统中，光学系统固有的畸变使得不同视场下的实际焦距不同，间接地影响系统的测角精度。使用一种基于最小二乘法的焦距标定公式，标定不同视场下统一的焦距量，能够有效地降低畸变的影响。利用该方法测得某型火炮动态性能测试系统的测角精度为2.34″，将该系统的测角精度从20″提高到5″以内。证明改进的标定公式有助于提高系统的性能指标。
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| 关 键 词： | 测角精度 畸变 焦距 火炮动态测试系统 |
| 收稿时间： | 2008/9/15 |
Measuring method of angle-measurement precision for fire control dynamic performance test system |
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| ZHANG Kai,FU Yue-gang,WANG Zhi-jian.Measuring method of angle-measurement precision for fire control dynamic performance test system[J].Journal of Applied Optics,2009,30(1):73-75. |
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| Authors: | ZHANG Kai FU Yue-gang WANG Zhi-jian |
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| Institution: | Photo-eletric Engineering College, Changchun University of Science and Technology, Changchun 130022, China |
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| Abstract: | Distortion of optical system makes focal length of advanced fire control dynamic performance test system different at different FOVs, and influences angle-measuring precision. A focal length calibration formula based on least-square method was used to obtain a unified focal length for all the FOVs and the influence of the distortion was reduced. For a specific fire control dynamic performance test system, its measurement result was 2.34″ by using the method, which improved angle precision from 20 to 5 arc-second. It is proved that the modified calibration formula can improve the performance specification of fire control dynamic performance test systems. |
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| Keywords: | angle-measurement precision distortion focal length fire control dynamic performance test system |
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