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Passive MMW camera for low visibility landings
| 题名： | Passive MMW camera for low visibility landings |
| 作者： | Shoucri, Merit |
| 关键词： | visibility；camera；pass；andi；land；objects；capabilities；illumina；temperature；geometry |
| 摘要： | A passive, millimeter wave imaging sensor for aircraft landing in low or poor visibility conditions is described. The sensor can be incorporated in a camera for future enhanced synthetic vision systems. Contrast is provided by differences in material reflectivities, temperature, and sky illumination of the scene being imaged. Photographic images of the system's fog penetration capabilities are presented. A combinatorial geometry technique is used to construct the scene geometries. This technique uses eight basic geometric shapes which are used as building blocks for 3-D complex-shaped objects. The building blocks are then combined via union, intersection and exclusion operations to form 3-D scene objects and the combinatorial geometry package determines ray intercepts with scene objects, providing the specific surfaces and propagation distance for the scene. |
| 报告类型： | 科技报告 |
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