Enhancement of Signal‐to‐Noise Ratio in Hypersonic Measurements by Time Averaging
作者:
B. R. Tittmann,
H. E. Bo¨mmel,
期刊:
Review of Scientific Instruments
(AIP Available online 1967)
卷期:
Volume 38,
issue 10
页码: 1491-1496
ISSN:0034-6748
年代: 1967
DOI:10.1063/1.1720569
出版商: AIP
数据来源: AIP
摘要:
We describe the application of the well‐known technique of signal averaging for the enhancement of signal‐to‐noise ratio to the field of ultra‐ and hypersonic waves. The technique often referred to as autocorrelation is useful in at least two ways: (1) as an aid in extending the range of measurements toward higher frequencies, (2) as a help in improving the precision and accuracy in attenuation data.
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