Heterodyne frequency measurement method based on virtual instrument

CORC > 国家授时中心 > 中国科学院国家授时中心 > 时间频率测量与控制研究室

	Heterodyne frequency measurement method based on virtual instrument
	Li, Xiaohui ; Liu, Ya ; Wang, Danni ; Bian, Yujing ; Liu, Ya
	2007
会议名称	Joint IEEE International Frequency Control Symposium/21st European Frequency and Time Forum
会议日期	MAY 29-JUN 01, 2007
会议地点	Geneva, SWITZERLAND
英文摘要	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.
收录类别	CPCI
产权排序	1
会议主办者	IEEE
会议录	PROCEEDINGS OF THE 2007 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM-JOINTLY WITH THE 21ST EUROPEAN FREQUENCY AND TIME FORUM, VOLS 1-4
语种	英语
ISBN号	978-1-4244-0646-3
内容类型	会议论文
源URL	[http://210.72.145.45/handle/361003/5374]
专题	国家授时中心_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]. 见:Joint IEEE International Frequency Control Symposium/21st European Frequency and Time Forum. Geneva, SWITZERLAND. MAY 29-JUN 01, 2007.