NDLI: A Novel Method with Ps Accuracy for Time Interval Measurement

Content Provider	IEEE Xplore Digital Library
Author	Xiangwei Zhu Guangfu Sun Shaowei Yong Zhaowen Zhuang
Copyright Year	2007
Description	Author affiliation: Nat. Univ. of Defense Technol., Changsha (Xiangwei Zhu; Guangfu Sun; Shaowei Yong; Zhaowen Zhuang)
Abstract	High precise time interval measurement is widely used in time synchronization, satellite navigation, aerospace tracking telemetering, laser metering and nuclear electronics. The resolution and accuracy of the current used time counter is 25 ps and nearly 100 ps, respectively. A new time interval measurement method was put forward, in which, the signal under test is used to trigger a sampler and the phase of the reference sine signal sampled record the time stamp of the test signal. The sampled reference sine signal's phase is estimated by interpolated FFT and 1 ps resolution and accuracy can be achieved theoretically. The test experiment of prototype instrument show 10 ps accuracy has been achieved. If the hardware prototype is improved to reduce trigger jitter and sampling clock jitter, the measurement instrument may reach 1ps accuracy. The measurement system is used not only time interval measurement, but also for period measurement and modulation domain analysis.
Starting Page	848
Ending Page	853
File Size	533454
Page Count	6
File Format	PDF
ISBN	9781424406463
ISSN	10756787
DOI	10.1109/FREQ.2007.4319197
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-05-29
Publisher Place	Switzerland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Time measurement Signal resolution Testing Prototypes Instruments Jitter Nuclear measurements Synchronization Satellite navigation systems Aerospace electronics
Content Type	Text
Resource Type	Article

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