通常情况下，飞行程序设计工作一直依靠手工进行，设计周期长，工作效率低。因此，为实现飞行程序设计的自动生成而进行飞行程序设计的辅助设计势在必行。本文针对使用标准规定航迹的目视机动盘旋，结合国际民航组织的 Doc8168文件，经过调研并在AutoCAD基础上采用Visual-LISP语言进行开发，建立计算模型，通过在对话框中输入数据的形式实现了对使用标准规定航迹的目视机动盘旋保护区的自动生成。%As usual, the flight procedures design work mainly relies on manual design with long cycle and low efficiency. Therefore, it is quite necessary to carry out the aided design of the flight procedures in order to achieve the automatic generation of the flight procedure. On account of the ICAO documents Doc8168, this paper studies the features of visual maneuvering(circling) in the vicinity of the aerodrome and simulates a calculation model, which achieves the automatic generation of the visual maneuvering(circling) protected area in the vicinity of the aerodrome based on Visual-LISP in AutoCAD through entry some parameter in the dialog box.
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