Research on Operational Protection Area of ILS Glide Slope

doi:10.16182/j.issn1004731x.joss.23-0133

Abstract

Abstract:

The scientific protection for the operational protection area of the instrument landing system glide slope is of great significance to ensure the quality of civil aviation navigation space signals, the safety of aircraft approach operations, and the efficiency of airport operations. Combined with the concept evolution of the glide slope operational protection area, a comparative analysis of the delineation of the glide slope operational protection area required by the national civil aviation standards, industry standards, and Annex 10 Volume I of the Convention on International Civil Aviation is carried out. Taking the extra-large aircraft (A380-800) as an example, the glide slope operational protection area of a specific operation category is studied in the form of computer simulation, which maybe a supplement to relevant data on glide slope protection areas in Annex 10 Volume I of the Convention on International Civil Aviation and an example of the actual engineering demonstration. The typical research methods of glide slope site protection for the actual operation of specific airports and protection suggestions for glide slope operational protection area are given as the references for airport construction and operation.

Key words: instrument landing system, glide slope, site protection area, operational protection area, critical area, sensitive area

CLC Number:

TP391.9

Li Qingdong, Ye Jiaquan, Xu Jian. Research on Operational Protection Area of ILS Glide Slope[J]. Journal of System Simulation, 2024, 36(6): 1273-1284.

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变量	长度
D	下滑信标天线至跑道着陆端的距离
U/m	60
V	下滑信标天线至跑道中心线的距离
W/m	30
X/m	120
Y	360 m或距离D(以大者为准)
L	900 m或至机场边界或至平滑地面的终止点(以小者为准)

参数		数值
航空器高度		20<H≤25
临界区	X_C	672
临界区	Y_C	34
敏感区	X_s	610
敏感区	Y_s	24

典型参数	参数设置
地形特征	平坦
下滑角/(°)	3
静态多径容差/%	60
动态多径容差/%	80
进近航空器速度/kt	105
基准数据点高(RDH)/m	16.5

分类	物体高度H
地面车辆	H≤6
中型航空器	6<H≤14
大型航空器	14<H≤20
特大型航空器	20<H≤25

仿真参数	参数设置
跑道长度/m	3 800
跑道宽度/m	60
下滑信标后撤距离/m	310
下滑信标横向偏置/m	120
天线类型	捕获效应(M型)
馈电系统	NM7000B
运行类别	CAT Ⅱ/Ⅲ
仿真频率/MHz	330.65
机载接收机类型	典型
仿真算法	物理光学
单次仿真尺度	3 526