基于复杂环境的无线电频谱地图构建研究

doi:10.12305/j.issn.1001-506X.2026.02.31

Abstract

Abstract:

Aiming at the problems of radio wave propagation loss and radio spectrum map construction in complex environments, a method for constructing a radio environment map that integrates geographical information and radio wave propagation models is proposed. Firstly, based on topographical features, the method distinguishes between line of sight and non-line of sight wireless transmissions, establishing corresponding models to accurately calculate path loss during radio wave transmission. Secondly, grid processing is applied within the region based on sparse receiver signal strength measurements. Finally, geographical information and spatial interpolation are utilized to comprehensively estimate the received signal strength across the target area. Experimental results validate that the proposed method not only reflects topographical trends but also constructs spectrum maps that are more consistent with the geographical environment, especially under conditions of sparse nodes.

Key words: radio wave propagation model, path loss, spatial interpolation, radio environment map

CLC Number:

TN 925

Ruixia TIAN, Xiaogang QI, Weike CAI, Jiahui LI. Research on radio spectrum map construction based on complex environment[J]. Systems Engineering and Electronics, 2026, 48(2): 711-718.

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References 31

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参数设置	辐射源1	辐射源2
发射功率/dBw	14	3
频率/MHz	1000	300
发射天线高度/m	20	2
天线增益/dB	4	4

场景	DEM栅格行列值	RMSE/%
1	526×617	6.4829
2	913×913	4.0306

Research on radio spectrum map construction based on complex environment

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