| 应用加权中值滤波法检测薄壁梁式挠性器件下摆量 |
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| 引用本文： | 马洪文,杨文国,敖磊,金国良.应用加权中值滤波法检测薄壁梁式挠性器件下摆量[J].宇航计测技术,2004,24(2):26-28,33. |
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| 作者姓名： | 马洪文 杨文国 敖磊 金国良 |
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| 作者单位： | 哈尔滨工业大学,哈尔滨,150001 |
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| 摘 要： | 应用加权中值滤波法对薄壁梁式挠性器件下摆量进行高准确度CCD检测。薄壁梁式挠性器件在测量过程中测量图像存在高频抖动现象,因此测量准确度不高,运用加权中值滤波后使用最小二乘法细分技术,可以在实现提高测量准确度的同时,消除高频抖动带来的误差,从而可以有效提高CCD测量薄壁梁式挠性器件下摆量的准确度。实验表明,该方法比传统测量方法准确度提高20倍以上。
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| 关 键 词： | 薄壁梁式挠性器件 亚像素细分 CCD 中值滤波 最小二乘法 |
| 文章编号： | 1000-7202(2004)02-0026-03 |
| 修稿时间： | 2004年2月10日 |
Measuring the Droop of VBC using Weighted Median Filter |
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| MA Hong-weng YANG Weng-guo AO Lei JING Guo-liang.Measuring the Droop of VBC using Weighted Median Filter[J].Journal of Astronautic Metrology and Measurement,2004,24(2):26-28,33. |
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| Authors: | MA Hong-weng YANG Weng-guo AO Lei JING Guo-liang |
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| Abstract: | Weighted median filter technique is applied to measure the droop of Vibrating Beam Component (VBC) using CCD with accuracy. High-frequency vibration exists in the image of VBC CCD measurement, consequently, the measurement accuracy is not high. The technique using weighted median filter and least square sub-pixel selection could improve the measurement accuracy and eliminate the error from high-frequency vibration. Experiments show that the accuracy could be improved 20 times than that of conventional measurement method. |
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| Keywords: | VBC Sub-pixel edge detection CCD Median filter Least square method |
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