A multiple phase demodulation method for high resolution of the laser range finder

被引：0
|
作者：
Yoon, Heesun [1 ]
Hong, Jinpyo [1 ]
Kang, Seonggu [1 ]
Park, Kyihwan [1 ]
机构：
[1] Gwangju Inst Sci & Technol, Dept Mechatron, Kwangju, South Korea
来源：
PROCEEDINGS OF THE THIRD INTERNATIONAL CONFERENCE ON SENSING TECHNOLOGY | 2008年
关键词：
Laser range finder; Absolute distance measurement; Multiple phase demodulation; High resolution;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
To have higher resolution of distance in the laser range finder using the phase demodulation method, signal should be modulated with a high frequency. In the signal processing of modulation and demodulation, it is inevitable to amplify the signals. However, it is not easy to amplify the high frequency since the amplifying gain is restricted by the frequency bandwidth. It is advantageous to demodulate using an intermediate frequency in which high gain amplification as well as less contaminated signal are obtained. Analytical and experimental results are presented to show how the intermediate frequency demodulation method works and how good performance are obtained in the time and frequency domains.
引用
收藏
页码：324 / 328
页数：5
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