Low‐Level Average Power Measurements: Noise Figure Improvements Through Parallel or Series Connection of Noisy Amplifiers
作者:
Denis J‐M. Poussart,
期刊:
Review of Scientific Instruments
(AIP Available online 1973)
卷期:
Volume 44,
issue 8
页码: 1049-1052
ISSN:0034-6748
年代: 1973
DOI:10.1063/1.1686298
出版商: AIP
数据来源: AIP
摘要:
Four basic configurations suitable for recording low frequency noise from two‐terminal devices‐single voltage and single current amplifiers, dual voltage and dual current amplifiers with cross‐correlation‐are reviewed. Simple signal‐to‐noise ratio comparisons form the basis for the practical selection of the configuration which achieves the best match between the characteristics of the source (including its electrical access) and those of available amplifiers.
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