电波科学学报2025，Vol.40Issue(5)：970-977,8.DOI:10.12265/j.cjors.2024149
变电站RIS辅助覆盖性能分析和建模仿真
Substation RIS assisted coverage performance analysis and modeling simulation
摘要
Abstract
Emerging services such as substation mobile inspection have higher requirements for wireless coverage quality.In order to improve the signal coverage capability in non-line-of-sight area,the indoor signal coverage performance analysis and modeling simulation with the assistance of reconfigurable intelligent surface(RIS)are carried out.According to the characteristics of two cascaded sub-channels of RIS assisted communication,ray tracing(RT)technology is used to process the signal and obtain the electromagnetic propagation characteristics.RIS reflects the signal from the sent signal to the weak area after phase regulation,and the receiving end receives the multi-path information assisted by RIS to enhance the coverage performance.In order to reduce the computational cost of tracking,an approximate model based on non-reflective path is proposed.Finally,the received power,power delay spectrum,delay spread and calculation cost are simulated and compared respectively.The experimental results show the influence rules of RIS on signal transmission performance,i.e.,neglecting the reflection loss and non-ideal reflection characteristics of RIS in practical applications,its assisted transmission can significantly improve the effective coverage rate of signals,and the approximate model can achieve an effective trade-off between accuracy and computation time.关键词
变电站/覆盖增强/可重构智能反射面(RIS)/射线跟踪(RT)Key words
substation/coverage enhancement/reconfigurable intelligent surface(RIS)/ray tracing(RT)分类
电子信息工程引用本文复制引用
陈智雄,田晓艳,邵炜平,李勇,裘瑾怡..变电站RIS辅助覆盖性能分析和建模仿真[J].电波科学学报,2025,40(5):970-977,8.基金项目
国网浙江省电力有限公司科技项目(5211SX230006) （5211SX230006）
