Radio Propagation and Remote Sensing of the Environment

Radio Propagation and Remote Sensing of the Environment PDF

Author: N.A. Armand

Publisher: CRC Press

Published: 2004-11-15

Total Pages: 448

ISBN-13: 0203022858

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This book describes the processes of radio propagation and analyzes the equations that enable estimation of media. It explores propagation processes and related phenomena including absorption, refraction, reflection, and scattering. It also analyzes how knowledge of radiowave properties allows accurate estimations of media via inverse problems. The

Microwave Radiometry and Remote Sensing of the Earth's Surface and Atmosphere

Microwave Radiometry and Remote Sensing of the Earth's Surface and Atmosphere PDF

Author: 0 Pampaloni

Publisher: CRC Press

Published: 2023-06-14

Total Pages: 567

ISBN-13: 1000943461

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This book contains a selection of refereed papers presented at the 6 Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment held in Florence, Italy on March 15-18, 1999. Over the last two decades, passive microwave remote sensing has made considerable progress, and has achieved significant results in the study of the Earth's surface and atmosphere. Many years of observations with ground-based and satellite-borne sensors have made an important contribution to improving our knowledge of many geophysical processes of the Earth's environment and of global changes. The evolution in microwave radiometers aboard satellites has increased steadily over recent years. At the same time, many investigations have been carried out both to improve the algorithms for the retrieval of geophysical parameters and to develop new technologies. The book is divided into four main sections: three of these are devoted to the observation of the Earth's surface and atmosphere, and the fourth, to future missions and new technologies. The first section deals with the study of sea and land surfaces, and reports recent advances in remote sensing of ocean wind, sea ice, soil moisture and vegetation biomass, including electromagnetic modelling and the assimilation of radiometric data in models of land surface processes. The following two sections are devoted to the measurement of atmospheric quantities which are of fundamental importance in climatology and meteorology, and, since they influence radio-wave propagation, they also impact on several other fields, including geodesy, navigational satellite and radioastronomy. The last section presents an overview of new technologies and plans for future missions.

A Strategy for Active Remote Sensing Amid Increased Demand for Radio Spectrum

A Strategy for Active Remote Sensing Amid Increased Demand for Radio Spectrum PDF

Author: National Academies of Sciences, Engineering, and Medicine

Publisher: National Academies Press

Published: 2015-09-21

Total Pages: 247

ISBN-13: 0309373085

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Active remote sensing is the principal tool used to study and to predict short- and long-term changes in the environment of Earth - the atmosphere, the oceans and the land surfaces - as well as the near space environment of Earth. All of these measurements are essential to understanding terrestrial weather, climate change, space weather hazards, and threats from asteroids. Active remote sensing measurements are of inestimable benefit to society, as we pursue the development of a technological civilization that is economically viable, and seek to maintain the quality of our life. A Strategy for Active Remote Sensing Amid Increased Demand for Spectrum describes the threats, both current and future, to the effective use of the electromagnetic spectrum required for active remote sensing. This report offers specific recommendations for protecting and making effective use of the spectrum required for active remote sensing.

Microwave Propagation and Remote Sensing

Microwave Propagation and Remote Sensing PDF

Author: Pranab Kumar Karmakar

Publisher: CRC Press

Published: 2017-12-19

Total Pages: 257

ISBN-13: 1439849013

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Because prevailing atmospheric/troposcopic conditions greatly influence radio wave propagation above 10 GHz, the unguided propagation of microwaves in the neutral atmosphere can directly impact many vital applications in science and engineering. These include transmission of intelligence, and radar and radiometric applications used to probe the atmosphere, among others. Where most books address either one or the other, Microwave Propagation and Remote Sensing: Atmospheric Influences with Models and Applications melds coverage of these two subjects to help readers develop solutions to the problems they present. This reference offers a brief, elementary account of microwave propagation through the atmosphere and discusses radiometric applications in the microwave band used to characterize and model atmospheric constituents, which is also known as remote sensing. Summarizing the latest research results in the field, as well as radiometric models and measurement methods, this book covers topics including: Free space propagation Reflection, interference, polarization, and other key aspects of electromagnetic wave propagation Radio refraction and its effects on propagation delay Methodology of estimating water vapor attenuation using radiosonde data Knowledge of rain structures and use of climatological patterns to estimate/measure attenuation of rain, snow, fog, and other prevalent atmospheric particles and human-made substances Dual/multifrequency methodology to deal with the influence of clouds on radiometric attenuation Deployment of microwaves to ascertain various tropospheric conditions Composition and characteristics of the troposphere, to help readers fully understand microwave propagation Derived parameters of water, free space propagation, and conditions and variable constituents such as water vapor and vapor pressure, density, and ray bending

Global Environment Remote Sensing

Global Environment Remote Sensing PDF

Author: Ken'ichi Okamoto

Publisher: IOS Press

Published: 2001

Total Pages: 328

ISBN-13: 9781586031015

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At the beginning of the 21st century the world still faces various global environmental issues. Examples include the rise in atmosperic temperature due to the increase of atmosperic carbon dioxide, the depletion of the ozone layer and El Nino related climatic anomalies. Remote sensing technologies that use electromagnetic waves are quite useful in measuring physical parameters which describe global environments. This book covers the theory of electromagnetic remote sensing and the basic technologies used.

Radio Propagation in the Urban Scenario

Radio Propagation in the Urban Scenario PDF

Author: Giorgio Franceschetti

Publisher: Artech House

Published: 2023-05-31

Total Pages: 311

ISBN-13: 1630818577

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This practical book provides fundamentals of electromagnetic wave propagation and its unique application for the design of mobile wireless systems in complex urban environments. It supplies telecommunication engineers with the proper theoretical and practical tools to: plan radio coverage in cellular networks; design a radio link; predict connectivity in a wireless network and ensure that the system to be designed fulfills regulations on exposure of general public to electromagnetic fields. You’ll understand the latest propagation models and be equipped to address the challenges facing wireless propagation for the most recent 5G mobile systems, including how to cope with new propagation scenarios/frequencies in 5G wireless channel modelling. You’ll also find unique coverage of the problems of human exposure to electromagnetic fields and the corresponding international and national regulations, including the most recent ICNIRP guidelines. The book brings theory, algorithms, and applications into focus with some practical examples. Specific attention is devoted to laying the mathematical foundations of the asymptotic techniques that are presented; of the propagation over a flat and spherical Earth; and also of the propagation in complex environment in order to provide a cohesive exposition of the underlying principles. With its strong theoretical background on fundamentals of electromagnetic propagation along with an application-oriented approach, this is a must-have book for researchers working on applied electromagnetics and engineers working on wireless network planning at an advanced level. It is also rich in details and clear, making it an excellent textbook for advanced and graduate-level students.

The High-Latitude Ionosphere and its Effects on Radio Propagation

The High-Latitude Ionosphere and its Effects on Radio Propagation PDF

Author: R. D. Hunsucker

Publisher: Cambridge University Press

Published: 2007-09-10

Total Pages: 639

ISBN-13: 1139435000

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A modern treatment of the physics and phenomena of the ionosphere, beginning with the basics of radio propagation and the use of radio techniques in ionospheric studies. Ample cross-referencing, chapter summaries and reference lists make this book an invaluable aid for graduate students, ionospheric physicists and radio engineers.

Mathematical and Physical Modelling of Microwave Scattering and Polarimetric Remote Sensing

Mathematical and Physical Modelling of Microwave Scattering and Polarimetric Remote Sensing PDF

Author: A.I. Kozlov

Publisher: Springer Science & Business Media

Published: 2007-05-16

Total Pages: 415

ISBN-13: 0306480913

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Radar technology is increasingly being used to monitor the environment. This monograph provides a review of polarimetric radar techniques for remote sensing. The first four chapters cover the basics of mathematical, statistical modelling as well as physical modelling based on radiowave scattering theory. The subsequent eight chapters summarize applications of polarimetric radar monitoring for various types of earth environments, including vegetation and oceans. The last two chapters provide a summary of Western as well as former Soviet Union knowledge and the outlook. This monograph is of value to students, scientists and engineers involved in remote sensing development and applications in particular for environmental monitoring.