民机航向道信标接收功能定量评估方法研究
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    摘要:

    针对民用飞机仪表着陆系统(ILS)航向道信标(LOC)接收功能试飞中机载LOC接收功能定量评估存在困难的问题,通过对LOC基本工作原理和机场LOC地面台信号的分析,并结合机场LOC地面台的飞行校验方法和校验结果,将试飞使用跑道LOC地面台本身存在的误差以及飞行校验的设备误差纳入考量,结合民用飞机机载LOC系统试飞科目的试飞方法和试飞内容,以相应系统规范的精度要求为依据,分为“飞机沿航向道飞行”和“飞机与航向道成夹角飞行”两种情况,制定出了一套现实可行的机载LOC接收功能定量评估方法。此外,用实际的试飞数据验证了该套方法的正确性和科学性,可作为目前国内仅作定性评估的有力补充和支撑,并且可为类似的系统提供定量功能评估思路、方法及验证路径的参考。

    Abstract:

    Aiming at the difficulty of quantitative evaluation of onboard LOC receiving function in flight test of LOC receiving function of instrument landing system (ILS) for civil aircraft, this paper analyzes the basic working principle of LOC and its ground station signal, and combines the flight verification method and results of airport LOC ground station,and analyzes the error of runway LOC ground station itself and the error of calibration equipment is taken into account. Combined with the flight test method and flight test content of civil aircraft airborne LOC system flight test subject and based on the accuracy requirements of the relative system specification, an effective quantitative evaluation method for two different situations which are flying along the localizer oncourse and offcourse is presented. Furthermore, the actual flight test data has verified the correctness and scientificity of the method, which can support the current domestic qualitative assessment and can provide valuable reference for other similar system function quantitative evaluation.

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乐娅菲.民机航向道信标接收功能定量评估方法研究[J].民用飞机设计与研 究,2021(2):106-111LE Yafei.[J]. Civil Aircraft Design and Research,2021,(2):106-111. ( in Chinese)

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  • 在线发布日期: 2021-07-08
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