Raytheon

About: Raytheon is a company organization based out in Waltham, Massachusetts, United States. It is known for research contribution in the topics: Signal & Antenna (radio). The organization has 15290 authors who have published 18973 publications receiving 300052 citations.

Electronic and mechanical improvement of the receiving terminal of a free-space microwave power transmission system

Abstract: Significant advancements were made in a number of areas: improved efficiency of basic receiving element at low power density levels, improved resolution and confidence in efficiency measurements mathematical modelling and computer simulation of the receiving element and the design, construction, and testing of an environmentally protected two-plane construction suitable for low cost, highly automated construction of large receiving arrays.

Single-event effects ground testing and on-orbit rate prediction methods: the past, present, and future

Abstract: Over the past 27 years, or so, increased concern over single-event effects (SEEs) in spacecraft systems has resulted in research, development, and engineering activities centered around a better understanding of the space radiation environment, SEE predictive methods, ground test protocols, and test facility developments. This research has led to fairly well developed methods for assessing the impact of the space radiation environment on systems that contain SEE sensitive devices and the development of mitigation strategies either at the system or device level. However, as new technology has emerged, these ground test and predictive methods have certain short falls.

System and method for locating a target and guiding a vehicle toward the target

Abstract: A vehicle guidance system (10). The system (10) includes a first mechanism (34, 38, 40) for tracking a vehicle (20) based on time-of-arrival information associated with energy (54) emanating from the vehicle (20) and providing vehicle position information in response thereto. A second mechanism (40, 46) steers the vehicle (20) based on the vehicle position information. In a specific embodiment, the system (10) of further includes a third mechanism (24, 28, 36, 38) for locating the target (22) based on time-of-arrival information associated with energy (52) radiating from the target (22) and providing target location information in response thereto. The second the second mechanism steers the vehicle (20) based on the target location information and the vehicle position information.