Download or read book WR 10 Band Noise Measurement written by and published by . This book was released on 1992 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: A WR-10 band (75 to 110 GHz) noise measurement system was developed to evaluate a solid state noise source in this band. The system was characterized with a gas discharge tube that provided a stable output Excess Noise Ratio (ENR) of 14.2 dB + 0.5 dB throughout the band. To ensure the accuracy of the system characterization, the results were correlated with the results of noise temperature measurements, obtained from a load maintained at ambient and liquid nitrogen temperatures. The principles of noise measurement, method and limitations of each technique, and results of receiver characterization are discussed. The results of the receiver characterization are applied to the evaluation of solid-state noise sources. The resulting double sideband (DSB) ENR of the noise sources are presented and discussed. The accuracy of this DSB evaluation was compared to a single sideband (SSB) measurement using the "Three Point Measurement" method. Two WR-10 band noise sources were evaluated with the noise measurement system developed at NRL. The device performance was specified as an ENR of 15 dB + 1 dB and full waveguide coverage. The actual performance results indicate that ENR values in excess of 15 dB are available, but the devices lacked a flat output over the band.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Noise temperature Measurement System for the WR 28 Band written by and published by . This book was released on 1997 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NIST Noise Project has constructed and tested a radiometer for the measurement of noise sources in the WR-28 waveguide band (26.5 GHz to 40 GHz). it is a total-power radiometer which incorporates a six-port reflectometer for the measurement of relevant reflection coefficients. The radiometer is similar in design to existing NIST systems covering the WR-62 (12.4 GHz to 18 GHz) and WR-42 (18 GHz to 26.5 GHz) bands. This paper reviews the theory and describes the design, testing, and operation of the system. Because of the similarities between the present system and the existing WR-62 and WR-42 systems, much of this document also applies to those systems.
Download or read book Acoustic Noise Measurements written by J. R. Hassall and published by . This book was released on 1979 with total page 288 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 Proceedings of 3rd International Symposium on Recent Advances in Microwave Technology ISRAMT 91 August 18 21 1991 Reno Nevada U S A written by Banmali S. Rawat and published by . This book was released on 1991 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Noise Temperature Measurement System for the Wr 28 Band Classic Reprint written by James Randa and published by Forgotten Books. This book was released on 2017-12-14 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Noise-Temperature Measurement System for the Wr-28 Band Before proceeding, we establish some notation and conventions. We use the term noise temperature to mean the spectral density of available power from the source, divided by Boltzmann's constant. Thus for a small bandwidth B, over which the available power density is constant, the available power is given by P kbbtn. Available powers will be denoted by capital P, and delivered powers by lowercase p. The subscript on an available power generally indicates the device, except in the case of P where it indicates the ambient. 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 Precision Measurement of Microwave Thermal Noise written by James Randa and published by John Wiley & Sons. This book was released on 2022-11-02 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 Handbook of Noise Measurement written by Arnold P. G. Peterson and published by . This book was released on 1978 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Automotive Radar Sensors in Silicon Technologies written by Vipul Jain and published by Springer Science & Business Media. This book was released on 2012-09-27 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the leading causes of automobile accidents is the slow reaction of the driver while responding to a hazardous situation. State-of-the-art wireless electronics can automate several driving functions, leading to significant reduction in human error and improvement in vehicle safety. With continuous transistor scaling, silicon fabrication technology now has the potential to substantially reduce the cost of automotive radar sensors. This book bridges an existing gap between information available on dependable system/architecture design and circuit design. It provides the background of the field and detailed description of recent research and development of silicon-based radar sensors. System-level requirements and circuit topologies for radar transceivers are described in detail. Holistic approaches towards designing radar sensors are validated with several examples of highly-integrated radar ICs in silicon technologies. Circuit techniques to design millimeter-wave circuits in silicon technologies are discussed in depth.
Download or read book RF and mm Wave Power Generation in Silicon written by Hua Wang and published by Academic Press. This book was released on 2015-12-10 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: RF and mm-Wave Power Generation in Silicon presents the challenges and solutions of designing power amplifiers at RF and mm-Wave frequencies in a silicon-based process technology. It covers practical power amplifier design methodologies, energy- and spectrum-efficient power amplifier design examples in the RF frequency for cellular and wireless connectivity applications, and power amplifier and power generation designs for enabling new communication and sensing applications in the mm-Wave and THz frequencies. With this book you will learn: - Power amplifier design fundamentals and methodologies - Latest advances in silicon-based RF power amplifier architectures and designs and their integration in wireless communication systems - State-of-the-art mm-Wave/THz power amplifier and power generation circuits and systems in silicon - Extensive coverage from fundamentals to advanced design topics, focusing on various layers of abstraction: from device modeling and circuit design strategy to advanced digital and mixed-signal architectures for highly efficient and linear power amplifiers - New architectures for power amplifiers in the cellar and wireless connectivity covering detailed design methodologies and state-of-the-art performances - Detailed design techniques, trade-off analysis and design examples for efficiency enhancement at power back-off and linear amplification for spectrally-efficient non-constant envelope modulations - Extensive coverage of mm-Wave power-generation techniques from the early days of the 60 GHz research to current state-of the-art reconfigurable, digital mm-Wave PA architectures - Detailed analysis of power generation challenges in the higher mm-Wave and THz frequencies and novel technical solutions for a wide range for potential applications, including ultrafast wireless communication to sensing, imaging and spectroscopy - Contributions from the world-class experts from both academia and industry
Download or read book Publications of the National Bureau of Standards written by United States. National Bureau of Standards and published by . This book was released on 1948 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Worldwide Radio Noise Levels Expected in the Frequency Band 10 Kilocycles to 100 Megacycles written by William Quarles Crichlow and published by . This book was released on 1955 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Engineering Dictionary written by Frank R. Spellman and published by Rowman & Littlefield. This book was released on 2018-01-02 with total page 703 pages. Available in PDF, EPUB and Kindle. Book excerpt: This updated Dictionary provides a comprehensive reference for hundreds of environmental engineering terms used throughout the field. Author Frank Spellman draws on his years of experience, many government documents, and legal and regulatory sources to update this edition with many new terms and definitions. This fifth edition includes terms relating to pollution control technologies, monitoring, risk assessment, sampling and analysis, quality control, and permitting. Users of this dictionary will find exact and official Environmental Protection Agency definitions for environmental terms that are statute-related, regulation-related, science-related, and engineering-related, including terms from the following legal documents: Clean Air Act; Clean Water Act; CERCLA; EPCRA; Federal Facility Compliance Act; Federal Food, Drug and Cosmetic Act; FIFRA; Hazardous and Solid Waste Amendment; OSHA; Pollution Prevention Act; RCRA; Safe Drinking Water Act; Superfund Amendments and Reauthorization Act; and TSCA. The terms included in this dictionary feature time-saving cites to the definitions' source, including the Code of Federal Regulations, the Environmental Protection Agency, and the Department of Energy. A list of the reference source documents is also included.
Download or read book Engineering Acoustics written by Malcolm J. Crocker and published by John Wiley & Sons. This book was released on 2021-01-11 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt: ENGINEERING ACOUSTICS NOISE AND VIBRATION CONTROL A masterful introduction to the theory of acoustics along with methods for the control of noise and vibration In Engineering Acoustics: Noise and Vibration Control, two experts in the field review the fundamentals of acoustics, noise, and vibration. The authors show how this theoretical work can be applied to real-world problems such as the control of noise and vibration in aircraft, automobiles and trucks, machinery, and road and rail vehicles. Engineering Acoustics: Noise and Vibration Control covers a wide range of topics. The sixteen chapters include the following: Human hearing and individual and community response to noise and vibration Noise and vibration instrumentation and measurements Interior and exterior noise of aircraft as well as road and rail vehicles Methods for the control of noise and vibration in industrial equipment and machinery Use of theoretical models in absorptive and reactive muffler and silencer designs Practical applications of finite element, boundary element and statistical energy analysis Sound intensity theory, measurements, and applications Noise and vibration control in buildings How to design air-conditioning systems to minimize noise and vibration Readers, whether students, professional engineers, or community planners, will find numerous worked examples throughout the book, and useful references at the end of each chapter to support supplemental reading on specific topics. There is a detailed index and a glossary of terms in acoustics, noise, and vibration.
Download or read book Department of Commerce Technology Programs written by United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Science, Research, and Technology and published by . This book was released on 1989 with total page 1100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Precision Measurement and Calibration written by Arthur J. Estin and published by . This book was released on 1970 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
