| 摘要 |
Monochromatic light from a laser (7) is directed (9) to a rotating prism scanner (6) on the end of a telescope. The scene (2) is raster scanned by the resultant beam (3). The beam of light reflected by the scene, together with infra-red radiation emitted by warm objects in the scene, passes back through the telescope and scanner and is split (13) into two. - One sub-beam is used to detect (15) infra-red reflections, while the other is polarised (12) and compared with the pulsed outgoing beam by an interferometer (11). The interferometer provides data which are processed (16) together with the infra-red data to produce four displays (17): a heat image picture of the scene; a reflected image; range information and moving target indication. (17pp Dwg.No.1/3) |
