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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
ISBN978-1-4244-0646-3
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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