飞机自动进近和自动着陆的分析研究

An Analytic Study of the Automatic Approach and Landing of Airplanes

本文首先概述了当前民航客机的自动导航、进近、着陆的全过程。随着重点分析了波音737飞机利用SP-77自动飞行控制系统与仪表着陆系然的航向信标仪和下滑仪及机载无线电高度表等设备实现向跑道自动进近和自动着陆的工作过程,并系统介绍了在实现上述过程中,SP-77自动飞行控制系统的自动驾驶仪横滚通道和俯仰通道控制逻辑的建立,系统工作电路的转换,系统的控制规律和工作特点。

This paper begins with a survey of the whole process of automatic navigation, approach and landing of passenger aircraft as they are currently practised, followed by an analysis of the operations of automatic approach and landing of B737s by using the SP-77 Automatic Flight Control System (AFCS) and the Instrument Landing System Localizers, glide slope indications and airborne radio altimeters, etc. It also systematically describes the setting-up of control logic, system circuit conversion, system control rules and working characteristics of the autopilot roll and pitch control channels on the SP-77 AFCS while the aircraft performs the aforesaid process.