Heterodyne frequency measurement method based on virtual instrument | |
Li, Xiaohui; Liu, Ya; Wang, Danni; Bian, Yujing | |
2007 | |
会议名称 | Joint IEEE International Frequency Control Symposium/21st European Frequency and Time Forum |
会议录名称 | PROCEEDINGS OF THE 2007 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM-JOINTLY WITH THE 21ST EUROPEAN FREQUENCY AND TIME FORUM, VOLS 1-4 |
会议日期 | MAY 29-JUN 01, 2007 |
会议地点 | Geneva, SWITZERLAND |
产权排序 | 1 |
ISBN | 978-1-4244-0646-3 |
摘要 | The heterodyne method is one of main methods in high precision frequency measurement. In the traditional heterodyne method, the counter is used to measure the square wave of beat signal. This method is inconvenient to the multichannel measurement and real-time display of measurement results. In this paper, based on the technique of virtual instruments, the traditional heterodyne method is improved. The Analog Digital Converter and computer are used to replace counter. The sine wave of beat signal is converted into digital signal with ADC. The digital signal will be analyze by computer, its frequency calculated by the digital signal processing. This method is convenient for the multi-channel measurement and the real-time display of measure results. This method compared with the traditional heterodyne method, it is better than the traditional method in accuracy. |
部门归属 | 时间频率测量与控制研究室 |
主办者 | IEEE |
收录类别 | CPCI |
语种 | 英语 |
文献类型 | 会议论文 |
条目标识符 | http://210.72.145.45/handle/361003/5374 |
专题 | 时间频率测量与控制研究室 |
推荐引用方式 GB/T 7714 | Li, Xiaohui,Liu, Ya,Wang, Danni,et al. Heterodyne frequency measurement method based on virtual instrument[C],2007. |
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