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The Measurement Of Noise Performance Factors

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The Measurement Of Noise Performance Factors

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Author : M. G. Arthur
language : en
Publisher:
Release Date : 1974

The Measurement Of Noise Performance Factors written by M. G. Arthur and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1974 with Noise categories.

The metrology guide provides the basis for critical comparisons among seven measurement techniques for average noise factor and effective input noise temperature. The techniques that are described, discussed, and analyzed include the (1) Y-Factor, (2) 3-dB, (3) Automatic, (4) Gain Control, (5) CW, (6) Tangential, and (7) Cmparison Techniques. The analyses yield working equations and error equations by which accuracy capabilities are compared. Each technique is also analyzed for (a) frequency range for best measurement results, (b) special instrumentation requirements, (c) speed and convenience, (d) operator skill required, and (e) special measurement problems. General instrumentation requirements and practical measurement problems are discussed for the benefit of the non-expert metrologist. (Modified author abstract).

A Note On Noise Factor Measurement

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Author : Wave Propagation Laboratory
language : en
Publisher:
Release Date : 1969

A Note On Noise Factor Measurement written by Wave Propagation Laboratory and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Atmospheric radio refractivity categories.

The definition of noise factor, F, is reviewed and the mathematical bases for several methods of measuring noise factor are presented. Error analyses are given to determine: (1) the noise source temperatures, which minimize the noise factor measurement error, (2) an analytic expression for the expected error in F as measured by the CW methods, and (3) an analytic expression for the expected error in F as measured by the Y-Factor Method. A hypothetical receiver (of assumed characteristics) is used as a comparative example to elevate the errors to be expected in F as measured by the CW Method and by the Y-Factor Method. The importance of bandwidth as a criterion of receiver performance is stressed. The effect on the measured F produced by a change in receiver gain-bandwidth produced by a change in received gain-bandwidth produced by a change is receiver gain-bandwidth produce is considered briefly. A preliminary calculation of the source temperatures actually seen by the receiver input completes the report. The appendix is a procedural outline for measuring a receiver's noise factor by: (1) automatic noise factor meter (ANFM), (2) CW Method, and (3) Y-Factor Methods. This outline indicates the characteristics required of the test equipment and tells how to obtain the necessary data.

Noise Performance Factors In Communication Systems

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Author : William Walden Mumford
language : en
Publisher:
Release Date : 1968

Noise Performance Factors In Communication Systems written by William Walden Mumford and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Technology & Engineering categories.

Monograph

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Author : United States. National Bureau of Standards
language : en
Publisher:
Release Date : 1974

Monograph written by United States. National Bureau of Standards and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1974 with Physics categories.

Noise Performance Factors In Communication Systems

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Author : W. W. Mumford
language : en
Publisher:
Release Date : 1968

Noise Performance Factors In Communication Systems written by W. W. Mumford and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with categories.

Essa Technical Report Erl

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Author : United States. Environmental Science Services Administration
language : en
Publisher:
Release Date : 1969

Essa Technical Report Erl written by United States. Environmental Science Services Administration and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with categories.

Error Analysis Of Input Noise Temperature Measurements Of Low Noise Amplifiers

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Author : Hans-Juergen C. Blume
language : en
Publisher:
Release Date : 1969

Error Analysis Of Input Noise Temperature Measurements Of Low Noise Amplifiers written by Hans-Juergen C. Blume and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Amplifiers (Electronics) categories.