| 关于数字相位式测距仪的频率改正 |
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| 引用本文： | 徐忠阳.关于数字相位式测距仪的频率改正[J].测绘学院学报,1995(4). |
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| 作者姓名： | 徐忠阳 |
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| 摘 要： | 本文在分析自动脉冲数字测相基本原理的基础之上，推出了不仅与测距频率有关，而且还与填充脉冲频率及低频测相频率有关的新的频率改正公式，并给出新的频率改正公式与传统频率改正公式之间等同的条件，即有锁相环路（或频率跟踪电路）的正常工作来保证。
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| 关 键 词： | 数字测相，频率改正，频率综合技术，锁相环路 |
The Frequency Correction Formula of Digital Phase EDMI |
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| Xu Zhongyang.The Frequency Correction Formula of Digital Phase EDMI[J].Journal of Institute of Surveying and Mapping,1995(4). |
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| Authors: | Xu Zhongyang |
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| Institution: | Xu Zhongyang |
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| Abstract: | To analyse the basic principle of automatic digital phase measurement. a new frequency correction formula is advanced. The new formula not only has to do with the fine measarement frequency of distance. but also relate to the filling pulses frequency and the phase measurement frequency. The conditions that the new frequency correction formula is equiralent to the tradition formula are also discussed. |
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| Keywords: | Digital phase measurement Frequency correction formula Frequency synthesis technique Phase lock loop |
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