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"Deep space communications technology is bringing home benefits to all types of microwave communications systems. This groundbreaking resource explains the breakthroughs that the NASA JPL Deep Space Antenna Network achieved in reducing noise and signal interference. The book focuses on ground-based receivers and how they can be improved to pick up weak or disrupted signals. Practicing microwave engineers in all fields can apply these theories and methods to improve systems performance. In particular, engineers working on deep-space antenna systems can make the most of the techniques for analyzing errors caused by noise temperature. The book explains how to confidently predict receiver noise temperature thereby boosting the capability to receive data. Tutorials, practical formulas, and powerful techniques earn this book a permanent place on every microwave and antenna engineer's desk."--

Deep Space Network. --- Microwave antennas. --- Microwave communication systems. --- Intercommunication systems --- Microwave devices --- Telecommunication systems --- Line-of-sight radio links --- Antennas (Electronics) --- DSN (Deep Space Network) --- Antenna arrays --- Astronautics --- Communication systems --- Microwave communication systems --- Deep Space Network --- Microwave antennas

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Geologists in the field climb hills and hang onto craggy outcrops; they put their fingers in sand and scratch, smell, and even taste rocks. Beginning in 2004, however, a team of geologists and other planetary scientists did field science in a dark room in Pasadena, exploring Mars from NASA's Jet Propulsion Laboratory (JPL) by means of the remotely operated Mars Exploration Rovers (MER). Clustered around monitors, living on Mars time, painstakingly plotting each movement of the rovers and their tools, sensors, and cameras, these scientists reported that they felt as if they were on Mars themselves, doing field science. The MER created a virtual experience of being on Mars. In this book, William Clancey examines how the MER has changed the nature of planetary field science. NASA cast the rovers, Spirit and Opportunity, as "robotic geologists," and ascribed machine initiative ("Spirit collected additional imagery...") to remotely controlled actions. Clancey argues that the actual explorers were not the rovers but the scientists, who imaginatively projected themselves into the body of the machine to conduct the first overland expedition of another planet. The scientists have since left the darkened room and work from different home bases, but the rover-enabled exploration of Mars continues. Drawing on his extensive observations of scientists in the field and at the JPL, Clancey investigates how the design of the rover mission enables field science on Mars, explaining how the scientists and rover engineers manipulate the vehicle and why the programmable tools and analytic instruments work so well for them. He shows how the scientists felt not as if they were issuing commands to a machine but rather as if they were working on the red planet, riding together in the rover on a voyage of discovery.http://www.youtube.com/watch?v=oZQSWSZnTYs&feature=youtube_gdata.

Roving vehicles (Astronautics) --- Space probes. --- Mars Exploration Rover Mission (U.S.) --- Mars (Planet) --- Exploration. --- Geology. --- Deep space probes --- Probes, Space --- Exploration vehicles, Planetary --- Extraterrestrial roving vehicles --- Planetary exploration vehicles --- Rovers (Astronautics) --- Vehicles, Roving (Astronautics) --- United States. --- Space vehicles --- Motor vehicles

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At the heart of one of the most successful transmedia franchises of all time, Star Trek, lies an initially unsuccessful 1960s television production, Star Trek: The Original Series. In Star Trek and American Television, Pearson and Messenger Davies, take their cue from the words of the program's first captain, William Shatner, in an interview with the authors: "It's a television show." In focusing on Star Trek as a television show, the authors argue that the program has to be seen in the context of the changing economic conditions of American television throughout the more than four decades of Star Trek's existence as a transmedia phenomenon that includes several films as well as the various television series. The book is organized into three sections, dealing with firstly, the context of production, the history and economics of Star Trek from the original series (1966-1969) to its final television incarnation in Enterprise (2002-2005). Secondly, it focuses on the interrelationships between different levels of production and production workers, drawing on uniquely original material, including interviews with star captains William Shatner and Sir Patrick Stewart, and with production workers ranging from set-builders to executive producers, to examine the tensions between commercial constraints and creative autonomy. These interviews were primarily carried out in Hollywood during the making of the film Nemesis (2002) and the first series of Star Trek: Enterprise. Thirdly, the authors employ textual analysis to study the narrative "storyworld" of the Star Trek television corpus and also to discuss the concept and importance of character in television drama. The book is a deft historical and critical study that is bound to appeal to television and media studies scholars, students, and Star Trek fans the world over. With a foreword by Sir Patrick Stewart, Captain Jean-Luc Picard in Star Trek: The Next Generation.

Television series --- Series, Television --- Television serials --- Television programs --- History and criticism. --- Star trek (Television program) --- american television. --- changing economic conditions. --- context of production. --- creative autonomy. --- executive producers. --- history of star trek. --- history. --- hollywood. --- media history. --- media studies. --- otherworldly. --- planetary exploration. --- set builders. --- sir patrick stewart. --- spaceships. --- star trek deep space nine. --- star trek enterprise. --- star trek nemesis. --- star trek the next generation. --- star trek the original series. --- star trek. --- television franchise. --- television history. --- television production. --- television. --- transmedia. --- william shatner.