An Illustrated Guide to Satellites for Non-Technical and Technical People
Author: C. Robert Welti
Learn about satellites that affect us every day, how they work, and how we can place and keep them on orbit. Satellite Basics for Everyone presents an introduction and overview to satellites. Its written as clearly and understandably as possible for a wide audience. It provides a learning tool for grade school students. High school and college students can use it for helping them decide on career fields. Its for people with curious minds who want to know about satellites that affect their daily lives. And, it provides a training tool and an overview for people who build, operate, and use data collected by satellites. Satellite Basics for Everyone describes satellite missions, orbits, population, closeness, debris, collision risk, builders, owners, operators, launch vehicles, and costs. Focus then turns to describing the orbit, components, environment, and operation of the geostationary communications satellite because it affects our daily lives the most by providing television, radio, commercial business, Internet and telephone services. A description of satellite motion prepares for the included Mission Planning Example of how to place and keep this satellite on orbit and keep the antennas pointing in the right direction to perform its mission. The main objective of this book is to stimulate a broad interest in engineering and science.
This book is a professional military-intelligence officer's and a controversial insider's view of some of the greatest intelligence blunders of recent history. It includes the serious developments in government misuse of intelligence in the recent war with Iraq. Colonel John Hughes-Wilson analyses not just the events that conspire to cause disaster, but why crucial intelligence is so often ignored, misunderstood or spun by politicians and seasoned generals alike. This book analyses: how Hitler's intelligence staff misled him in a bid to outfox their Nazi Party rivals; the bureaucratic bungling behind Pearl Harbor; how in-fighting within American intelligence ensured they were taken off guard by the Viet Cong's 1968 Tet Offensive; how over confidence, political interference and deception facilitated Egypt and Syria's 1973 surprise attack on Israel; why a handful of marines and a London taxicab were all Britain had to defend the Falklands; the mistaken intelligence that allowed Saddam Hussein to remain in power until the second Iraq War of 2003; the truth behind the US failure to run a terrorist warning system before the 9/11 WTC bombing; and how governments are increasingly pressurising intelligence agencies to 'spin' the party-political line.
New Scientist magazine was launched in 1956 "for all those men and women who are interested in scientific discovery, and in its industrial, commercial and social consequences". The brand's mission is no different today - for its consumers, New Scientist reports, explores and interprets the results of human endeavour set in the context of society and culture.
Explains the reasons, limitations and trade-offs inherent to communications satellites. The first half deals with link power budgets as well as communications hardware and examples of complete link budgets. Spacecraft technology and a description of the objectives and basic operating methods of each of the major supporting subsystems are covered in the last half. Contains end-of-chapter exercises and solutions. An Instructor's Manual presenting detailed solutions to all the problems in the book is available from the Wiley editorial department.
This modern presentation guides readers through the theory and practice of satellite orbit prediction and determination. Starting from the basic principles of orbital mechanics, it covers elaborate force models as well as precise methods of satellite tracking. The accompanying CD-ROM includes source code in C++ and relevant data files for applications. The result is a powerful and unique spaceflight dynamics library, which allows users to easily create software extensions. An extensive collection of frequently updated Internet resources is provided through WWW hyperlinks.