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    • 6. 发明授权
    • Aircraft-based topographical data collection and processing system
    • 基于飞机的地形数据采集和处理系统
    • US5557397A
    • 1996-09-17
    • US310164
    • 1994-09-21
    • Russell T. HydeMichael G. WiseRobert H. StokesEdward C. Brasher, Jr.
    • Russell T. HydeMichael G. WiseRobert H. StokesEdward C. Brasher, Jr.
    • G01C11/02G01C3/08
    • G01C11/02G01S17/42
    • A system is described for rapidly and accurately determining the topography of land masses as well as individual x,y,z coordinates of discrete targets. The system incorporates a laser altimeter, a laser scanning/steering system with sensor for receiving reflected laser beams, a global positioning system or other non-ground-based reference means, a video camera, computers, and processing software. The system, mounted to an aircraft, selectively scans or steers a pulsed laser altimeter over a swath or point on earth. A Global Positioning System (GPS) or other non-ground-based reference means records the aircraft's position, altitude, and time of position. Concurrently, a computer system records and time tags the laser's range, scanner angles, and airborne platform's roll, pitch, and heading. The processing software correlates all events and measurements using time to determine precise x,y,z coordinates of the ground/targets. Finally, the system post processes the combined data to produce significant terrain, vegetation, and cultural data.
    • 描述了一种系统,用于快速准确地确定陆地的地形以及离散目标的个体x,y,z坐标。 该系统包括激光高度计,具有用于接收反射激光束的传感器的激光扫描/转向系统,全球定位系统或其他非地面参考装置,摄像机,计算机和处理软件。 安装在飞机上的系统选择性地扫描或引导脉冲激光高度计在地球上的一条或多条点上。 全球定位系统(GPS)或其他非地面参考装置记录飞机的位置,高度和位置时间。 同时,计算机系统记录和时间标记激光的范围,扫描仪角度和机载平台的滚动,俯仰和航向。 处理软件使用时间将所有事件和测量值相关联,以确定地面/目标的精确x,y,z坐标。 最后,系统后处理组合数据以产生显着的地形,植被和文化数据。