Calculation methods and visualization for coverage area of communication and navigation facilities in plateau region

doi:10.16265/j.cnki.issn1003-3033.2021.04.015

Abstract

Abstract: In order to improve calculation precision of effective coverage area and support capacity of communication and navigation facilities in complex terrain of plateau region, strict algorithm for operation range of space wave and iterative algorithm for determination of obstacle shelter points were proposed. With consideration to comprehensive influence of various factors, including elevation of transmitting and receiving terminals, the position and elevation of obstacles and the curvature of the earth, these algorithms, by designing computer programs, could precisely resolve maximum transmission distance of electromagnetic wave and achieve accurate calculation and visual analysis for coverage area of ground-based communication and navigation facilities in complex terrain of plateau region. The results show that the proposed strict algorithm can improve calculation precision of maximum range of electromagnetic wave while iterative algorithm can accurately define position of obstacle shelter points which have a direct impact on the maximum transmission distance, thus improving credibility of calculation results. Moreover, visualization calculation software developed according to algorithms above and combined with CAD technology can precisely calculate and automatically map actual guarantee range of related air lines around facilities in plateaus.

Key words: plateau region, communication and navigation facilities, coverage area, strict algorithm, iterative algorithm, calculation precision

CLC Number:

X949

SONG Tao, XIA Zhenghong, WAN Jian, ZHU Xinping, LI Yang. Calculation methods and visualization for coverage area of communication and navigation facilities in plateau region[J]. China Safety Science Journal, 2021, 31(4): 111-118.

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