| 一种和DDS结合的高分辨率频率计设计 |
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| 引用本文： | 白丽娜,周渭,赵桀,张清兰.一种和DDS结合的高分辨率频率计设计[J].西安电子科技大学学报,2012,39(4):126-130,160. |
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| 作者姓名： | 白丽娜 周渭 赵桀 张清兰 |
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| 作者单位： | 西安电子科技大学机电工程学院 |
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| 基金项目： | 国家自然科学基金资助项目(60772135,10978017) |
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| 摘 要： | 介绍了基于直接数字式频率合成器(DDS)的高分辨率频率计的设计方法,并以简单的电路完成对频率信号的高分辨率测量.在测频方案中,利用DDS跟踪被测频率的值,自动合成合适的频标信号,可实现在宽范围内,对任意频率信号的高分辨率等精度测量.样机实测数据表明,高分辨率频率计的测量分辨率可以达到10-12/s量级.
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| 关 键 词： | 直接数字式频率合成器 高分辨率 频率计 测频 |
| 收稿时间： | 2011-06-01 |
Design of a high-resolution frequency meter combined with the DDS |
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| BAI Lina,ZHOU Wei,ZHAO Jie,ZHANG Qinglan.Design of a high-resolution frequency meter combined with the DDS[J].Journal of Xidian University,2012,39(4):126-130,160. |
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| Authors: | BAI Lina ZHOU Wei ZHAO Jie ZHANG Qinglan |
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| Affiliation: | (School of Mechano-electronic Engineering, Xidian Univ., Xi'an 710071， China) |
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| Abstract: | This paper describes the method for designing a high-resolution frequency meter based on the DDS(Direct Digital Synthesizer) using a simple circuit.In this method,DDS is used to track the value of the measured frequency and synthesizes automatically appropriate frequency standard signals.This method is applicable to measuring signals within a wide range of frequency.Prototype measured data show that the high-resolution frequency meter can reach the magnitude of 10-12/s. |
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| Keywords: | DDS high-resolution frequency meter frequency measurement |
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