Precise measurement of phase difference and the amplitude ratio of two coherent sinusoidal signals
作者:
George S. K. Wong,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1984)
卷期:
Volume 75,
issue 3
页码: 967-972
ISSN:0001-4966
年代: 1984
DOI:10.1121/1.390562
出版商: Acoustical Society of America
数据来源: AIP
摘要:
This paper describes the theory of the interchange reference method for the precise assessment of phase difference θ and amplitude ratioRof two coherent sinusoidal signals. Systematic errors are analyzed in depth. For θ equal to 10°, the uncertainties inRand θ are of the order of 2 ppm and less than 0.01°, respectively. Experimental verification confirms the theory of the above method.
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