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公开(公告)号：US4702698A
公开(公告)日：1987-10-27
申请号：US652875
申请日：1984-09-21
CPC分类号： G09B9/40
摘要： A radar return image for display on a cockpit CRT is generated by selectively accessing terrain data compressed and stored in a digital map data base and processing that data to artificially simulate a radar return image pattern on a cockpit display which effectively corresponds that which would otherwise be provided by conventional T/R equipment. Since the compressed data base contains information representative of both the elevation and cultural features of the terrain at map locations that are capable of being intercepted by the aircraft's radar beam, this data may be subjected to signal processing functions to establish pixel intensity control signals by way of which a radar image of a cockpit CRT display is generated. This signal processing and control system includes system functional components for establishing the simulation of the effect of a radar beam having a prescribed beam width, slant-angle, and field of scan and controllably accessing the stored terrain map data from memory for establishing a pixel display data base in accordance with which the pixels of the cockpit radar display are intensity-modulated.
摘要翻译： 通过选择性地访问压缩并存储在数字地图数据库中的地形数据来生成用于在驾驶舱CRT上显示的雷达返回图像，并且处理该数据以人为地模拟驾驶舱显示器上的雷达返回图像模式，这将有效地对应于否则将 由传统的T / R设备提供。 由于压缩数据库包含代表能够被飞机的雷达波束拦截的地图位置的地形的高程和文化特征的信息，所以该数据可以经受信号处理功能以通过方式建立像素强度控制信号 其中产生驾驶舱CRT显示器的雷达图像。 该信号处理和控制系统包括用于建立具有规定的波束宽度，倾斜角度和扫描场的雷达波束的效果的模拟的系统功能部件，并且可控地从存储器访问存储的地形图数据，以建立像素显示 数据库，根据该数据库，驾驶舱雷达显示器的像素被强度调制。
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公开(公告)号：US4682160A
公开(公告)日：1987-07-21
申请号：US517037
申请日：1983-07-25
摘要： A system for generating a real time perspective view of the terrain lying along an aircraft's flight path accesses terrain data stored in a digital map generator and converts the data into a perspective representation of the terrain on the face of a suitable display such as a cockpit instrument panel CRT. The stored map data that is accessed provides, in real time, information pertaining to elevation features of the terrain over which the aircraft is flying, so that upon conversion to a perspective presentation to the pilot, there is provided a real time perspective image of the contours of the terrain as though the pilot were looking out a windscreen at the terrain in high visibility conditions. The invention also is capable of providing perspective scene rotation and translation (corresponding to roll and pitch of the aircraft).
摘要翻译： 用于产生沿着飞行器飞行路径的地形的实时透视图的系统访问存储在数字地图生成器中的地形数据，并将数据转换成合适显示器（例如驾驶舱仪器）的地形的透视图 面板CRT。 所访问的存储的地图数据实时地提供与飞机飞行的地形的高程特征有关的信息，从而在转换为向飞行员的透视表示时，提供了实时透视图 就像飞行员在高能见度条件下在地形上看风挡玻璃一样，地形的轮廓。 本发明还能够提供透视场景旋转和平移（对应于飞行器的滚动和俯仰）。
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