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

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.