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原文传递 Innovative Scanning Antenna Systems for Advanced Recognition of Rail Collision, Obstacle Detection and Automobile Collision Avoidance: Final Report for High-Speed Rail IDEA Project HSR-1.

题名：	Innovative Scanning Antenna Systems for Advanced Recognition of Rail Collision, Obstacle Detection and Automobile Collision Avoidance: Final Report for High-Speed Rail IDEA Project HSR-1.
作者：	L. Sadovnik;
关键词：	collision avoidance,highway transportation,millimeter waves,antennas;accident prevention, obstacle avoidance, speed control, detectors, position sensing, automatic highways, automobiles, railroads, transportation safety;
摘要：	The innovative Spinning GratingTM Antenna developed as a result of this project is a low-cost millimeter wave (MMW) antenna that can be applied to collision avoidance systems for both railroads and automobiles. The antenna is unique in that it uses the optical phenomenon of diffraction to define and steer a beam of MMW energy. Unlike electronically steered antennas and more traditional gimbaled antennas, the Spinning GratingTM antenna (see Figure ES-1) is both low in cost and reliable, ideal features for the transportation market. This technology was first developed for radar imaging systems for aircraft autonomous landing guidance. / Supplementary Notes: Sponsored by Transportation Research Board, Washington, DC. IDEA Programs. / Availability Note: Product reproduced from digital image. Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5301 Shawnee Road, Alexandria, VA, 22312, USA. / NTIS Prices: PC A03/MF A03 / NTIS In-house Control Codes: nastrb;12111,1101
报告类型：	科技报告