Attenuation

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In physics, attenuation (in some contexts also called extinction) is the gradual loss in intensity of any kind of flux through a medium. (Wikipedia.org)






Conferences related to Attenuation

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2020 IEEE 16th International Workshop on Advanced Motion Control (AMC)

AMC2020 is the 16th in a series of biennial international workshops on Advanced Motion Control which aims to bring together researchers from both academia and industry and to promote omnipresent motion control technologies and applications.


2019 IEEE Applied Power Electronics Conference and Exposition (APEC)

APEC focuses on the practical and applied aspects of the power electronics business. The conference addresses issues of immediate and long term importance to practicing power electronics engineer.


2019 IEEE International Conference on Industrial Technology (ICIT)

The scope of the conference will cover, but will not be limited to, the following topics: Robotics; Mechatronics; Industrial Automation; Autonomous Systems; Sensing and artificial perception, Actuators and Micro-nanotechnology; Signal/Image Processing and Computational Intelligence; Control Systems; Electronic System on Chip and Embedded Control; Electric Transportation; Power Electronics; Electric Machines and Drives; Renewable Energy and Smart Grid; Data and Software Engineering, Communication; Networking and Industrial Informatics.


2019 IEEE International Ultrasonics Symposium (IUS)

The conference covers all aspects of the technology associated with ultrasound generation and detection and their applications.


2019 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)

This conference is the annual premier meeting on the use of instrumentation in the Nuclear and Medical fields. The meeting has a very long history of providing an exciting venue for scientists to present their latest advances, exchange ideas, renew existing collaboration and form new ones. The NSS portion of the conference is an ideal forum for scientists and engineers in the field of Nuclear Science, radiation instrumentation, software engineering and data acquisition. The MIC is one of the most informative venues on the state-of-the art use of physics, engineering, and mathematics in Nuclear Medicine and related imaging modalities, such as CT and increasingly so MRI, through the development of hybrid devices


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Periodicals related to Attenuation

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Antennas and Propagation, IEEE Transactions on

Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.


Automatic Control, IEEE Transactions on

The theory, design and application of Control Systems. It shall encompass components, and the integration of these components, as are necessary for the construction of such systems. The word `systems' as used herein shall be interpreted to include physical, biological, organizational and other entities and combinations thereof, which can be represented through a mathematical symbolism. The Field of Interest: shall ...


Biomedical Engineering, IEEE Transactions on

Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.


Broadcasting, IEEE Transactions on

Broadcast technology, including devices, equipment, techniques, and systems related to broadcast technology, including the production, distribution, transmission, and propagation aspects.


Circuits and Systems II: Express Briefs, IEEE Transactions on

Part I will now contain regular papers focusing on all matters related to fundamental theory, applications, analog and digital signal processing. Part II will report on the latest significant results across all of these topic areas.


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Most published Xplore authors for Attenuation

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Xplore Articles related to Attenuation

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Rain fade slope predicted from rain rate data

[{u'author_order': 1, u'affiliation': u'Centre for Earth Observation, European Space Agency, Frascati, Italy.; Visiting fellow at Department of Electronic and Electrical Engineering, University of Bath, Bath, UK.', u'full_name': u'Max M. J. L. van de Kamp'}] Radio Science, 2007

A key parameter of the statistics of the rate of change of rain attenuation (“fade slope”) on satellite links is the variance of relative fade slope. This paper shows how this parameter can be derived from rain rate measurements without the use of satellite beacon measurements. Relating rain rate directly to attenuation would give unrealistic results. A theoretical model to ...


Liquid water content estimates using simultaneous S and K<inf>a</inf>band radar measurements

[{u'author_order': 1, u'affiliation': u'National Center for Atmospheric Research, Boulder, Colorado, USA.', u'full_name': u'Scott M. Ellis'}, {u'author_order': 2, u'affiliation': u'National Center for Atmospheric Research, Boulder, Colorado, USA.', u'full_name': u'Jothiram Vivekanandan'}] Radio Science, 2011

A technique for the estimation of total liquid water content (LWC; the sum of cloud water and rainwater contents) using simultaneous S and Kaband scanning radar observations is proposed and tested using the National Center for Atmospheric Research simultaneous S band and Kaband dual-polarimetric (S-PolKa) radar system. The sources of error for this wavelength pair are evaluated, and the methods ...


Correction to “A simple model for the estimation of rain-induced attenuation along earth-space paths at millimeter wavelengths” by W. L. Stutzman and W. K. Dishman

[] Radio Science, 1984

No abstract is available.


The Pulse Behaviour of Passive EMI-Line Filters

[{u'author_order': 1, u'full_name': u'H.A. Kunz'}, {u'author_order': 2, u'full_name': u'H. Grutter'}] 1984 International Symposium on Electromagnetic Compatibility, 1984

None


Advanced time series synthesizer for simulation of joint rain attenuation conditions

[{u'author_order': 1, u'affiliation': u'Istituto di Elettronica, Informatica e Ingegneria delle Telecomunicazioni, Consiglio Nazionale delle Ricerche, Milan, Italy', u'full_name': u'R. Nebuloni'}, {u'author_order': 2, u'affiliation': u'Istituto di Elettronica, Informatica e Ingegneria delle Telecomunicazioni, Consiglio Nazionale delle Ricerche, Milan, Italy; Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, Milan, Italy', u'full_name': u'C. Capsoni'}, {u'author_order': 3, u'affiliation': u'Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, Milan, Italy', u'full_name': u'M. Luccini'}] Radio Science, 2014

This contribution presents a model to generate time series of rain attenuation by adapting a large set of rain attenuation measurements to different locations. The proposed model allows generating rainy and not rainy conditions for multiple stations in a large geographical area, reproducing the actual spatial and temporal variability of the rain process, with limited computational effort. Single site and ...


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Educational Resources on Attenuation

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eLearning

No eLearning Articles are currently tagged "Attenuation"

IEEE-USA E-Books

  • Cognitive Acoustics: A Way to Extend the Lifetime of Underwater Acoustic Sensor Networks

    This chapter contains sections titled:The Concept of Cognitive AcousticsUnderwater Acoustic Communication ChannelSome Distinct Features of Cognitive AcousticsFundamentals of Reinforcement LearningAn Application Scenario: Underwater Acoustic Sensor NetworksNumerical ResultsConclusionAcknowledgementsReferences

  • Printed Leaky Wave Antennas

    None

  • Backhauling 5G Small Cells with Massive‐MIMO‐Enabled mmWave Communication

    An introduction to 5G small cells will be given and their backhauling requirements will be discussed. Then, the basics of massive MIMO and mm‐wave communication and their suitability for small‐cell backhauling and fronthauling will be discussed. Also, challenges related to using massive MIMO and mm‐wave communication for small‐cell backhauling and fronthauling will be outlined. In this context, the current state of the art will be reviewed. To this end, a performance analysis model for wireless back hauling of small cells with massive MIMO and mm‐wave communication will be outlined. Based on this model, some numerical results on the performance of massive‐MIMO‐ and/or mm‐wave‐based wireless backhaul networks will be presented.

  • Management of Interference at a Radio Site

    None

  • Trends in Wireless Communications

    This chapter includes a summary of the history and recent trends in wireless communications especially on mobile cellular systems. The basic transmission problems and solutions are summarized in the physical and network layers. The fundamental limits define the upper performance bounds for spectral and energy efficiency. Regulation and standardization is needed so that the finite frequency resource is used efficiently, and the systems work together even in different continents. We expect that in the future the radio systems will be more intelligent but the level of cognition will depend on the available energy resources.

  • Computer‐Aided Synthesis of Characteristic Polynomials

    This chapter discusses the synthesis of the characteristic polynomials of lowpass lossless prototype filters using an efficient computer‐aided optimization technique. It specifies an unconstrained artificial function for the optimization process that includes the objective function, as well as the inequality and equality constraints. The chapter develops the appropriate objective functions for optimization to generate the known classes of filter functions. The technique described for the computer‐aided optimization of characteristic polynomials for minimum phase filters is equally applicable for linear phase filters, both symmetric and asymmetric. The efficiency of this procedure is demonstrated by including examples of the classical Chebyshev and elliptic function filters as special cases of the design procedure. The computed critical frequencies are specified in Appendix 4A. These data add to the range of unified design charts and also provide guidelines for developing software to synthesize characteristic polynomials for filters with arbitrary amplitude and phase response.

  • Rain Fade Mitigation

    This chapter contains sections titled:Power Restoral TechniquesSignal Modification Restoral TechniquesSummaryReferencesProblems

  • Characterization of Propagation Channels

    The reliable knowledge of the propagation channel is the foundation of the design and analysis of any wireless communication system. This chapter provides a unified and conceptually simple explanation of a morass of concepts around wireless channels. In the context of wireless radio channels, wide‐sense stationary uncorrelated scattering (WSSUS) is usually assumed. Wireless channels are the real environments in which the transmitter (Tx) and receiver (Rx) operate. Path loss is the attenuation in the transmitted signal while propagating from the Tx and Rx. Multipath propagation is when the transmitted signal reaches the Rx by two or more paths. The characterization of the multipath fading channel is essential for understanding and modeling it properly. The most important and often‐used approximate descriptions are the first‐order received envelope and phase PDF of multipath fading and some second‐order descriptions of multipath fading, such as the level cross rate (LCR), average fading duration (AFD), and the correlation properties.

  • WIDEBAND AND UWB COMMON‐MODE SUPPRESSED DIFFERENTIAL‐MODE FILTERS BASED ON COUPLED LINE SECTIONS

    This chapter introduces different kinds of coupled lines to design balanced filters with ultra‐wideband (UWB) or wideband differential‐mode bandpass responses and high common‐mode suppression. It discusses the novel filters that include UWB balanced filters combining UWB bandpass filter (BPF) and UWB bandstop filter(BSF), wideband balanced filters using coupled line stubs, wideband balanced filters with internal cross‐couplings, wideband balanced filters using stub‐loaded ring resonators (SLRRs), and wideband balanced filters using modified coupled feed lines (MCFLs) and coupled line stubs (CLSs). Balanced filter can be realized by combining the traditional BPF and BSF. To achieve high selectivity in differential mode and enhanced rejection in common mode, more transmission zeros should be introduced. Another simple and innovative approach is proposed to design balanced wideband filter with high selectivity and common‐mode suppression. The chapter shows the circuit model and layout of the proposed balanced BPF, which contains two SLRRs.

  • Acoustic Source Localization with Microphone Arrays

    This chapter contains sections titled:IntroductionSignal ModelLocalization Approach TaxonomyIndirect Localization ApproachesDirect Localization ApproachesEvaluation of Localization AlgorithmsConclusionsBibliography



Standards related to Attenuation

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IEEE Recommended Practice for Determining Safe Distances From Radio Frequency Transmitting Antennas When Using Electric Blasting Caps During Explosive Operations

This project provides recommended practices for the prediction and practical determination of safe distances from radio and radar transmitting antennas when using electric initiators to remotely detonate an explosive charge. Specifically, this document includes mathematical formulas, tables, and charts that allow the user to determine safe distances from RF transmitters with spectrum bands from 0.5 MHz to 300 GHz, including ...


IEEE Recommended Practice for Determining the Peak Spatial-Average Specific Absorption Rate (SAR) in the Human Head from Wireless Communications Devices: Measurement Techniques

To specify protocols for the measurement of the peak spatial-average specific absorption rate (SAR) in a simplified model of the head of users of hand-held radio transceivers used for personal wireless communications services and intended to be operated while held next to the ear. It applies to contemporary and future devices with the same or similar operational characteristics as contemporary ...


IEEE Recommended Practice for Measurement of 8-VSB Digital Television Transmission Mask Compliance for the USA

This recommended practice provides a standardized body of theory, techniques, and procedures for measuring the spectral characteristics of 8-VSB transmitters used for terrestrial transmission of digital television (DTV) in the frequency range near their assigned channels. Essential characteristics are specified and measurement procedures are given that ensure that all parties will obtain comparable results. The theory and techniques presented are ...


IEEE Recommended Practice for Measurements and Computations of Radio Frequency Electromagnetic Fields With Respect to Human Exposure to Such Fields, 100 kHz-300 GHz

Revise and develop specifications for preferred methods for measuring and computing external radiofrequency electromagnetic fields to which persons may be exposed. In addition, the document will specify preferred methods for the measurement and computation of the resulting fields and currents that are induced in bodies of humans exposed to these fields over the frequency range of 100 kHz to 300 ...



Jobs related to Attenuation

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