Book description
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
Table of contents
- Cover Page
- Title Page
- Copyright Page
- Dedication
- Contents
- Preface
- Author
- 1 Outlines of Radio Waves and Troposphere
-
2 Propagation of Radio Waves: An Outline
- 2.1 Introduction
- 2.2 Power Gain of Directional Aerial
- 2.3 Free Space Field Due to Directional Transmitting Aerial
- 2.4 Power at the Receiving Directional Aerial
- 2.5 Free Space Transmission Loss
- 2.6 Radio Waves in Neutral Atmosphere
- 2.7 When Is a Medium a Conductor or Dielectric?
- 2.8 Wave Polarization
- References
- 3 Reflection and Interference of Radio Waves
-
4 Radio Refraction and Path Delay
- 4.1 Introduction
- 4.2 Radius of Curvature of the Ray Path
- 4.3 Refractivity is Complex and Frequency Dependent
- 4.4 Turbulence-Induced Scintillation
- 4.5 Microwave Propagation through Tropospheric Turbulence
- 4.6 Propagation over Inhomogeneous Surface
- 4.7 Tropospheric Ducting
- 4.8 Propagation Delay through the Atmosphere
- References
-
5 Absorption of Microwaves
- 5.1 Introduction
- 5.2 Absorption Coefficient
- 5.3 Microwave and Millimeter Wave Absorption in the Atmosphere
- 5.4 Centrifugal Distortion
- 5.5 Water Vapor Absorption at 22.235 GHz
- 5.6 Water Vapor Absorption at 183.311 GHz
- 5.7 Water Vapor and Microwave Attenuation
- 5.8 Choice of Frequency
- 5.9 Attenuation Studies in 50–70 GHz Band
- 5.10 Attenuation Studies at 94 GHz
- References
- 6 Rain Attenuation and Its Application at Microwaves
- Attenuation by Hydrometeors Other than Rain
- Appendix: Mean Atmospheric Temperature at Microwaves and Millimeter Waves in Clear Air Environment
- Index
Product information
- Title: Microwave Propagation and Remote Sensing
- Author(s):
- Release date: December 2017
- Publisher(s): CRC Press
- ISBN: 9781351833318
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