| 新型便携式激光测距仪的原理及方案设计 |
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| 引用本文： | 段淋淋, 崔一平,. 新型便携式激光测距仪的原理及方案设计[J]. 电子器件, 2009, 32(1) |
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| 作者姓名： | 段淋淋 崔一平 |
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| 作者单位： | 东南大学先进光子学中心,南京,210096;东南大学先进光子学中心,南京,210096 |
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| 摘 要： | 提出了一种新型双频调制方式的相位式激光测距系统.该系统采用石英晶体滤波器对测距信号进行滤波,使用一套独特的基于欠采样测距信号的信号处理算法,灵活地解决了测尺频率、石英晶体滤波器中心频率、模数转换采样频率三者的匹配问题;同时给出了系统的方案设计以及与基于数字同步检测系统方案的对比.
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| 关 键 词： | 激光测距仪 欠采样 DDS 石英晶体滤波器 |
Principle and Design of a New Type of Portable Laser Rangefinder |
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| DUAN Lin-lin,CUI Yi-ping. Principle and Design of a New Type of Portable Laser Rangefinder[J]. Journal of Electron Devices, 2009, 32(1) |
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| Authors: | DUAN Lin-lin CUI Yi-ping |
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| Affiliation: | Advanced Photonics Center;Southeast University;Nanjing 210096;China |
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| Abstract: | The purpose of this paper is to present a new type of twofold modulation frequency phase-shift laser rangefinder.The system,taking advantage of quartz crystal filter,uses special signal process algorithm based on under-sampling technique.The algorithm solves the matching problem between measure frequency,ADC and quartz crystal filter's norminal frequency flexibly.The paper also presents design of this system,which is compared with anothes design based on digital synchronous detection. |
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| Keywords: | DDS |
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