Download or read book Uncertainty Analysis for NIST Noise Parameter Measurement written by U.s. Department of Commerce and published by Createspace Independent Publishing Platform. This book was released on 2014-01-21 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some time ago, what is now the Electromagnetics Division of the National Institute of Standards and Technology (NIST) developed the capability to measure noise parameters of amplifiers [1,2]. Recently, modified methods and analysis have been developed and have been applied both to amplifiers [3] and to transistors [4], the latter in an on-wafer environment. For such measurements to be meaningful, the results must be accompanied by corresponding uncertainties.
Download or read book Uncertainty Analysis for Nist Noise Parameter Measurements Classic Reprint written by James Randa and published by Forgotten Books. This book was released on 2017-10-28 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Uncertainty Analysis for Nist Noise-Parameter Measurements The contributions to the standard uncertainty are divided into two groups. Generally, type-a uncertainties are those that are determined by statistical means, and type-b are all others. The standard or combined uncertainty (uc) in a quantity is the root sum of squares (rss) of the type-a and type-b uncertainties. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Uncertainty analysis for NIST noise parameter measurements written by James Randa and published by . This book was released on 2008 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Noise Parameter Uncertainties written by and published by DIANE Publishing. This book was released on with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Uncertainties in Nist Noise Temperature Measurements Classic Reprint written by James Randa and published by Forgotten Books. This book was released on 2017-11-19 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Uncertainties in Nist Noise-Temperature Measurements The many different systems and our understanding of them have evolved considerably over the years, with concomitant changes m the uncertainty analyses. Even for systems whose uncertainties have not changed, the method of reporting the uncertainties has changed. Prior to about 1993 the common practice in the nist Noise Project was to compute and quote a worst-case or maximum possible error. This was done by estimating the maximum possible value for each component of the uncertainty and then forming the linear sum of the individual components. In 1992 nist officially adopted the policy of reporting uncertainties which conform to the iso guidelines Accordingly, the measurement services offered by the Noise Project now quote an expanded (20) uncertainty, corresponding to a 95 percent confidence level. This required a conversion from worst-case errors to standard uncertainties for the individual components of uncertainty, as well as a change in the manner of combining the components. As a result of all these changes - in the systems, the analyses, and the method of reporting the uncertainty - the uncertainty analysis for a typical system is now scattered in several different places, often rather inaccessible, and-there are sometimes conflicting forms for one analysis. The present paper addresses this problem; it assembles. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Guidelines for Evaluating and Expressing the Uncertainty of NIST Measurement Results rev Ed written by Barry N. Taylor and published by DIANE Publishing. This book was released on 2009-11 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of measurements and conclusions derived from them constitute much of the technical information produced by the National Institute of Standards and Technology (NIST). In July 1992 the Director of NIST appointed an Ad Hoc Committee on Uncertainty Statements and charged it with recommending a policy on this important topic. The Committee concluded that the CIPM approach could be used to provide quantitative expression of measurement that would satisfy NIST¿s customers¿ requirements. NIST initially published a Technical Note on this issue in Jan. 1993. This 1994 edition addresses the most important questions raised by recipients concerning some of the points it addressed and some it did not. Illustrations.
Download or read book Precision Measurement of Microwave Thermal Noise written by James Randa and published by John Wiley & Sons. This book was released on 2022-11-22 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Precision Measurement of Microwave Comprehensive resource covering the foundations and analysis of precision noise measurements with a detailed treatment of their uncertainties Precision Measurement of Microwave Thermal Noise presents the basics of precise measurements of thermal noise at microwave frequencies and guides readers through how to evaluate the uncertainties in such measurement. The focus is on measurement methods used at the U.S. National Institute of Standards and Technology (NIST), but the general principles and methods are useful in a wide range of applications. Readers will learn how to perform accurate microwave noise measurements using the respected author’s expertise of calculations to aid understanding of the challenges and solutions. The text covers the background required for the analysis of the measurements and the standards employed to calibrate radiofrequency and microwave radiometers. It also covers measurements of noise temperature (power) and the noise characteristics of amplifiers and transistors. In addition to the usual room-temperature two-port devices, cryogenic devices and multiport amplifiers are also discussed. Finally, the connection of these lab-based measurements to remote-sensing measurement (especially from space) is considered, and possible contributions of the lab-based measurements to remote-sensing applications are discussed. Specific topics and concepts covered in the text include: Noise-temperature standards, covering ambient standards, hot (oven) standards, cryogenic standards, and other standards and noise sources Amplifier noise, covering definition of noise parameters, measurement of noise parameters, uncertainty analysis for noise-parameter measurements, and simulations and strategies On-wafer noise measurements, covering on-wafer microwave formalism, noise temperature, on-wafer noise-parameter measurements, and uncertainties Multiport amplifiers, covering formalism and noise matrix, definition of noise figure for multiports, and degradation of signal-to-noise ratio Containing some introductory material, Precision Measurement of Microwave Thermal Noise is an invaluable resource on the subject for advanced students and all professionals working in (or entering) the field of microwave noise measurements, be it in a standards lab, a commercial lab, or academic research.
Download or read book Uncertainties in Nist Noise Temperature Measurements written by J. Randa and published by . This book was released on 1998-08 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Error Analysis of Input noise temperature Measurements of Low noise Amplifiers written by Hans-Juergen C. Blume and published by . This book was released on 1969 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modern RF and Microwave Measurement Techniques written by Valeria Teppati and published by Cambridge University Press. This book was released on 2013-06-20 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive, hands-on review of the most up-to-date techniques in RF and microwave measurement, including practical advice on deployment challenges.
Download or read book UNCERTAINTIES IN NIST NOISE TEMPERATURE MEASUREMENTS NIST TECHNICAL 1502 U S DEPARTMENT OF COMMERCE written by National Institute of Standards and Technology (U.S.) and published by . This book was released on 1998* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Research of the National Institute of Standards and Technology written by and published by . This book was released on 1999 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NISTIR written by and published by . This book was released on 2001 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NIST Handbook written by and published by . This book was released on 1989 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications of the National Institute of Standards and Technology Catalog written by National Institute of Standards and Technology (U.S.) and published by . This book was released on 1994 with total page 1162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NIST Technical Note written by and published by . This book was released on 1990 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidelines for Evaluating and Expressing the Uncertainty of NIST Measurement Results written by B. N. Taylor and published by . This book was released on 1993 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of measurements and conclusions derived from them constitute much of the technical information produced by NIST. It is generally agreed that the usefulness of measurement results, and thus much of the information that we provide as an institution, is to a large extent determined by the quality of the statements of uncertainty that accompany them. For example, only if quantitative and thoroughly documented statements of uncertainty accompany the results of NIST calibrations can the users of our calibration services establish their level of traceability to the U.S. standards of measurement maintained at NIST.
