Ulteriori informazioni
Informationen zum Autor HAMID HEMMATI , PhD, is a principal member of the technical staff and the Technical Group Supervisor of the JPL Optical Communications Group, which is developing optical communication technologies to and from spacecraft in Earth orbit and deep space. Dr. Hemmati has published more than 100 journal and conference papers, holds seven patents, and has received thirty NASA Certificates of Recognition. Klappentext A quarter century of research into deep space and near Earth optical communicationsThis book captures a quarter century of research and development in deep space optical communications from the Jet Propulsion Laboratory (JPL). Additionally, it presents findings from other optical communications research groups from around the world for a full perspective. Readers are brought up to date with the latest developments in optical communications technology, as well as the state of the art in component and subsystem technologies, fundamental limitations, and approaches to develop and fully exploit new technologies.The book explores the unique requirements and technologies for deep space optical communications, including:* Technology overview; link and system design drivers* Atmospheric transmission, propagation, and reception issues* Flight and ground terminal architecture and subsystems* Future prospects and applications, including navigational tracking and light scienceThis is the first book to specifically address deep space optical communications. With an increasing demand for data from planetary spacecraft and other sources, it is essential reading for all optical communications, telecommunications, and system engineers, as well as technical managers in the aerospace industry. It is also recommended for graduate students interested in deep space communications. Zusammenfassung This is the first book that specifically addresses Optical Communications from planetary distances. There are specific technologies and requirements that are unique to deep-space links and differ from either Earth-orbit to Earth, or terrestrial, optical communication links. Inhaltsverzeichnis Foreword. Preface. Acknowledgments. Contributors. Chapter 1 : Introduction (James R . Lesh). 1.1 Motivation for Increased Communications. 1.2 History of JPL Optical Communications Activities. 1.3 ComponentlSubsystem Technologies. 1.3.1 Laser Transmitters. 1.3.2 Spacecraft Telescopes. 1.3.3 Acquisition, Tracking. and Pointing. 1.3.4 Detectors. 1.3.5 Filters. 1.3.6 Error Correction Coding. 1.4 Flight Terminal Developments. 1.4.1 Optical Transceiver Package (OPTRANSPAC). 1.4.2 Optical Communications Demonstrator (OCD). 1.4.3 Lasercom Test and Evaluation Station (LTES). 1.4.4 X2000 Flight Terminal. 1.4.5 International Space Station Flight Terminal. 1.5 Reception System and Network Studies. 1.5.1 Ground Telescope Cost Model. 1.5.2 Deep Space Optical Reception Antenna (DSORA). 1.5.3 Deep Space Relay Satellite System (DSRSS) Studies. 1.5.4 Ground-Based Antenna Technology Study (GBATS). 1.5.5 Advanced Communications Benefits Study (ACBS). 1.5.6 Earth Orbit Optical Reception Terminal (EOORT) Study. 1.5 .7 EOORT Hybrid Study. 1.5.8 Spherical Primary Ground Telescope. 1.5.9 Space-Based versus Ground-Based Reception Trades. 1.6 Atmospheric Transmission. 1.7 Background Studies. 1.8 Analysis Tools. 1. 9 System-Level Studies. 1.9.1 Venus Radar Mapping (VRM) Mission Study. 1.9.2 Synthetic Aperture Radar-C (SIR-C) Freeflyer. 1.9.3 ER-2 to Ground Study. 1.9.4 Thousand Astronomical Unit (TAU) Mission and Interstellar Mission Studies. 1.1 0 System-Level Demonstrations. 1 .1 0. 1 Galileo Optical Experiment (GOPEX). 1.10.2 Comp...
