| 摘要 |
<p>PURPOSE:To accurately trace a target emitting a radio wave by outwardly arranging an optical sensor on the surface of a Luneberg lens and arranging a radio wave sensor at a position almost point-symmetric to the optical sensor with respect to the center of a sphere acting as the Luneberg lens. CONSTITUTION:For example, an optical sensor 2 composed of a TV camera is attached to a Luneberg lens 1 at one point P on the spherical surface of the lens 1 and radio wave sensors 3A, 3B are symmetrically arranged with respect to the straight line passing through the center O of a sphere and the optical sensor 2. Radio wave sensors 3C, 3D are symmetrically arranged within the plane vertical to the plane containing the radio wave sensors 3A, 3B and the optical sensor 2 with respect to the straight line passing through the center 0 of the sphere and the optical sensor. Therefore, the patterns of the main lobes of the respective radio wave sensors 3A-3D are formed in an almost annular shape around the optical sensor 2. By this method, a radio wave arriving direction is detected by the radio wave sensors 3A, 3B and optical data can be obtained by the optical sensor 2 and a target emitting radio wave can be accurately tracked.</p> |
