基于t-min累计降雨率的1 min累计降雨时间序列重建

IF 5.8 1区计算机科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Antennas and Propagation Pub Date : 2025-04-16 DOI:10.1109/TAP.2025.3559349

Qiang Zhang;Shuhong Gong;Leke Lin;Zhenwei Zhao;Changsheng Lu;Zhiyu Li

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引用次数: 0

摘要

雨水衰减对毫米波通信至关重要。通过分析1 min累计降雨率的统计特征，可以评价其在降雨环境中的传播特性。然而，从大多数气象站无法直接获得1分钟累积降雨量数据。因此，本研究提出了一种基于t-min累计降雨率的重建方法，生成1 min累计降雨率时间序列（CRRTS），从而获得统计分钟降雨率。构造概率密度函数，结合CRRTS转换过程中满足均值和标准差参数的约束条件。利用该方法对西安、海口、青岛3个城市2022年5 min累计降雨率数据进行分析，得到1 min长期统计分布特征。结果表明，该模型优于ITU模型和Emiliani模型，验证了其可行性和有效性。所提出的方法适用于对通信链路系统设计至关重要的微小降雨率统计。

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Reconstruction of 1-min Cumulated Rainfall Time Series Based on t-min Cumulated Rainfall Rate

Rain attenuation is crucial for millimeter-wave communication. The propagation characteristics in rainfall environments can be evaluated by analyzing the statistical characteristics of the 1-min cumulated rainfall rate. However, 1-min cumulated rainfall rate data cannot be directly obtained from most meteorological stations. Therefore, this study proposed a novel reconstruction method based on t-min cumulated rainfall rate to generate 1-min cumulated rainfall rate time series (CRRTS) such that the statistical minute rainfall rate can be obtained. A probability density function was constructed, and the constraint conditions at which the mean and standard deviation parameters were satisfied during CRRTS conversion were combined. The proposed method was used to analyze the 5-min cumulated rainfall rate data of Xi’an, Haikou, and Qingdao, collected in 2022, and the 1-min long-term statistical distribution characteristics were obtained. The results showed that the proposed model outperformed the ITU model and Emiliani model, confirming its feasibility and effectiveness. The proposed method applies to minute rainfall rate statistics, crucial for designing communication link systems.

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来源期刊

IEEE Transactions on Antennas and Propagation 工程技术-电信学

CiteScore

10.40

自引率

28.10%

发文量

968

审稿时长

4.7 months

期刊介绍： IEEE Transactions on Antennas and Propagation includes theoretical and experimental advances in antennas, including design and development, and in the propagation of electromagnetic waves, including scattering, diffraction, and interaction with continuous media; and applications pertaining to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques