The localizer mode of the automatic flight control system for civil aircraft can control the aircraft to roll and align with the runway center line, so as to improve the automation of the approach and landing. During the airline operation of civil aircraft, there are two problems related to the mode that are the localizer capture overshoot issue and the localizer signal disturbance issue. An optimal design scheme is proposed to solve the two problems. The low-frequency error detection of the localizer signal and the interception angle limit is used to deal with the localizer signal disturbance. The localizer pre capture mode allowing turning in advance outside the selected guidance sector is proposed to solve the overshoot issue caused by geometry limit. The lateral distance is especially proposed as the control target of the localizer control law to avoid overshoot during approach on the long-distance runway.
Design of AFCS Localizer Mode for Civil Aircraft
Lect. Notes Electrical Eng.
International Conference on Guidance, Navigation and Control ; 2022 ; Harbin, China August 05, 2022 - August 07, 2022
2023-01-31
10 pages
Article/Chapter (Book)
Electronic Resource
English
SAE Technical Papers | 1981
|A study of (AFCS) communications measurement program
Tema Archive | 1973
|Digital Computation Makes AFCS More Reliable
IEEE | 1975
|