Large transmitting arrays for deep space communication and related applications

摘要

NASA's Deep Space Network is now being re-designed to provide the next generation of ground based equipment for communicating with spacecraft throughout our solar system. In receiving direction, it seems clear that large arrays of relatively small antennas provide the most cost-effective method of increasing the interplanetary data rate by at least 100 times over present capabilities, as is now desired. In the transmitting direction, data must also be sent at increasing rates, and the best approach to this is now being studied. Two-way links are also important for supporting spacecraft navigation and radio science measurements. Furthermore, the ability to generate very high effective radiated power makes possible radar studies of planets, asteroids, and other objects. this paper describes a conceptual design for arrays of antennas that provide transmitting capability to deep space for all these purposes.