the wave theory foundations of today's radio occultation techniques<br> <br> Forty years ago, the premier radio occultation problem was how to profile the atmosphere and radius of Mars using signals sent by the Mariner 4 spacecraft. Researchers then could rely on ray theory-based techniques for accurate analysis of the thin, uniform Martian atmosphere. Today's radio occultation challenges mostly involve communications platforms-and related data, instrument systems, and applications-in the Earth's own atmosphere. To deal with the density and complexity of this multilayered medium, an analytical framework that goes beyond ray theory is needed.<br> <br> Setting the cutting edge for the field, Radio Occultations Using Earth Satellites: A Wave Theory Treatment develops a purely wave-theoretic approach to occultation analysis. This approach yields more nuanced results than either ray or hybrid (ray/wave) methodologies offer, and proves suitable for the many variables at work in today's problems.<br> <br> This groundbreaking text provides:<br> * An introduction to the general theory of radio occultations<br> * Development of ray theory and scalar diffraction treatments of radio propagation processes<br> * Development of a wave theoretic treatment of the above wave propagation processes<br> * The correspondence between wave and ray theories<br> * A discussion of how to use a wave-theoretic approach to infer the refractive properties of the propagation medium from a time series set of observations of the propagated wave's phase and amplitude<br> <br> A comprehensive resource that clearly defines the latest topics and methodologies, Radio Occultations Using Earth Satellites is a must-have text for engineers, scientists, students, and managers in satellites communications, navigation, deep space and planetary exploration, aerospace, atmospheric science, physics, and engineering.<br> <br> The Deep Space Communications and Navigation Series is authored by scientists and engineers with extensive experience in astronautics, communications, and related fields. It lays the foundation for innovation in the areas of deep space navigation and communications by disseminating state-of-the-art knowledge in key technologies.
Table of Contents Amateur Radio Emergency Communications in the Community Amateur Radio Emergency Service (ARES) Radio Amateur Civil Emergency Service (RACES) Principles of Disaster Communication Working with Public Safety Officials and Agencies National Traffic System (NTS) Incident Command System (ICS) Message Handling Hurricane Intensity Scale The Emergency Radiogram ITU Phonetic Alphabet International Q Signals US Amateur Bands Amateur Radio Call Sign Numerical Prefixes Signal Reporting Communications Net Procedure CTCSS (PL) Tone Frequencies Packet Radio APRS (Automatic Position Reporting System) PSK (Phase Shift Keying) Radio Winlink 2000 Satellite Radio Antennas and Propagation H.F. Antenna Analysis Emergency Power Anderson Powerpoles D-Star Programming Echolink and IRLP Portable Antenna Systems
Over the years since the launch of the first of the Advanced Very High Resolution Radiometers (AVHRRs) in 1978, the data from these instruments have come to be used for a very wide range of non-meteorological applications. In this book, the author describes the satellite system, the instrument itself, the control of the spacecraft and the data- recovery arrangements. The book also covers various aspects of the processing of the data to extract useful environmental information. The applications of the data to marine problems, based primarily on the study of sea-surface temperatures from the thermal-infrared channels of the instrument, are considered, as well as the study of vegetation and a whole variety of other land-based and hydrological applications.
Want to build your own satellite and launch it into space? It's easier than you may think. The first in a series of four books, this do-it-yourself guide shows you the essential steps needed to design a base picosatellite platform-complete with a solar-powered computer-controlled assembly-tough enough to withstand a rocket launch and survive in orbit for three months.
Whether you want to conduct scientific experiments, run engineering tests, or present an orbital art project, you'll select basic components such as an antenna, radio transmitter, solar cells, battery, power bus, processor, sensors, and an extremely small picosatellite chassis. This entertaining series takes you through the entire process-from planning to launch.
"Now, in a single convenient volume, you can have all the information you need on real-world applications of electromagnetic theory, including the prediction, analysis, and measurement of electromagnetic fields and their effects. RADIO FREQUENCY PRINCIPLES and APPLICATIONS will guide you from the basics of electromagnetic theory to the full range of new and vital applications.<br> <br> Author Albert A. Smith, Jr. provides a wealth of practical information in an accessible style, without using obtuse theory or requiring complex mathematical derivations.<br> <br> This exceptionally ""readable"" text ties together the various related topics in a logical development, and the material flows from the fundamentals of electromagnetic fields to areas of practical application. The numerous figures provide helpful illustrations, and the appendicies offer additional mathematical details.<br> <br> This book will be of particular use to engineers working in the many diverse fields relating to the application of electromagnetic concepts, including engineers involved in RF technology, EMC, radio wave propagation, antennas, radio frequency environments, wireless communications, microwaves, and space systems.<br> <br> Professors: To request an examination copy simply e-mail firstname.lastname@example.org."<br> <br> Sponsored by:<br> IEEE Electromagnetic Compatibility Society, IEEE Microwave Theory and Techniques Society.