| 激光测高系统中匹配滤波器的设计 |
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| 引用本文： | 李洋,戚俊,张毅,赵欣,陈结祥,涂碧海,王相京,黄正英.激光测高系统中匹配滤波器的设计[J].激光与光电子学进展,2006,43(4):29-33. |
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| 作者姓名： | 李洋 戚俊 张毅 赵欣 陈结祥 涂碧海 王相京 黄正英 |
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| 作者单位： | 1. 中国科学院安徽光学精密机械研究所,合肥,230031;安徽理工大学,淮南,232001
2. 中国科学院安徽光学精密机械研究所,合肥,230031 |
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| 摘 要： | 激光测高仪不仅可以精确测量目标的距离，还能够从回波信号中提取倾斜度、粗糙度等特征信息，应用十分广泛。通过对测高系统中信号检测单元分析，采用匹配滤波对回波信号进行处理，达到了理想的滤波效果，这对特征信号的提取和提高系统的探测精度起到了关键的作用。
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| 关 键 词： | 激光测高仪 匹配滤波 信号检测单元 贝塞尔滤波器 |
| 收稿时间： | 2005-10-09 |
| 修稿时间： | 2005-10-092005-11-16 |
Selection and Design of Filters for Laser Altimeters |
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| LI Yang,QI Jun,ZHANG Yi,ZHAO Xin,CHEN Jiexiang,TU Bihai,WANG Xiangjing,HUANG Zhengying.Selection and Design of Filters for Laser Altimeters[J].Laser & Optoelectronics Progress,2006,43(4):29-33. |
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| Authors: | LI Yang QI Jun ZHANG Yi ZHAO Xin CHEN Jiexiang TU Bihai WANG Xiangjing HUANG Zhengying |
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| Affiliation: | 1 Anhui Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Hefei 230031 ; 2 Anhui University of Science and Technology, Huainan 232001 |
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| Abstract: | Laser altimeter not only can precisely measure the target distance, but also extract characteristic information, such as inclination, roughness etc. from its echo signals. So they axe applied widely. The signal detection unit of the system is analyzed with matching filters to process the echo signals with idealized results, which plays an important role to the extraction of characteristic signals and the improvement of detection precision. |
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| Keywords: | laser altimeter matching filter signal measurement unit Bessel filter |
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