TITLE:
Digital Application on the Impact of Terrain on the Threshold Crossing Height Rising
AUTHORS:
Chunqing Qu
KEYWORDS:
Glide Path, Forward Slope, Sideways Slope, Reflector
JOURNAL NAME:
World Journal of Engineering and Technology,
Vol.13 No.4,
October
22,
2025
ABSTRACT: The terrain factors have a direct impact on the structure and spatial synthesis of the glide path antenna. Analyzing various terrain factors can effectively control the adjustment effect of Threshold Crossing Height (TCH). The TCH can be raised by tilting the antenna at a certain angle (ϕ = 0 - 10 degrees). The terrain research will be performed on the Forward Slope (FSL), Sideways Slope (SSL), and reflector height (h) one by one, and the relationship between these factors will be revealed. Variation of Forward and Sideway Slope (FSL = −2˚, −1.5˚, −1˚, −0.5˚, 0˚, +0.5˚, +1˚, +1.5˚, +2˚; SSL = −2˚, −1˚, 0˚, +1˚, +2˚) have regular variation in the effect of TCH adjustment, while different reflection surface height (h = −2 m, −1.5 m, −1 m, −0.5 m, 0 m, +0.5 m, +1 m, +1.5 m, +2 m) have poor relationship with the effect of adjusting the TCH. The increase in TCH in complex terrain can be achieved by a smart chart. At the same time, the required tilt angle of the antenna can be inferred directly based on the upward adjustment.