复杂海洋环境对流层散射与蒸发波导双机制耦合的路径损耗建模

廖希; 杨博文; 郑相全; 文武

doi:10.11959/j.issn.1000-436x.TXXB260296

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复杂海洋环境对流层散射与蒸发波导双机制耦合的路径损耗建模

更新时间：2026-07-31

- 复杂海洋环境对流层散射与蒸发波导双机制耦合的路径损耗建模
- Path loss modeling of the coupling between tropospheric scatter and evaporation ducting in complex maritime environments
- 通信学报 2026年
- 作者机构：
  
  1.重庆邮电大学通信与信息工程学院，重庆 400065
  2.中国人民解放军32008部队，北京 100141
- 作者简介：
  
  郑相全，zxqcy99@163.com
- 基金信息：
  
  重庆市自然科学基金(CSTB2025YITP-QCRC0045)
- DOI：10.11959/j.issn.1000-436x.TXXB260296
  中图分类号： TN011
- 收稿：2026-05-22，
  
  修回：2026-07-30，
  
  录用：2026-07-31，
- 稿件说明：
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廖希, 杨博文, 郑相全, 等. 复杂海洋环境对流层散射与蒸发波导双机制耦合的路径损耗建模[J/OL]. 通信学报, 2026.

Liao Xi, Yang Bowen, Zheng Xiangquan, et al. Path loss modeling of the coupling between tropospheric scatter and evaporation ducting in complex maritime environments[J/OL]. Journal on Communications, 2026.
廖希, 杨博文, 郑相全, 等. 复杂海洋环境对流层散射与蒸发波导双机制耦合的路径损耗建模[J/OL]. 通信学报, 2026. DOI： 10.11959/j.issn.1000-436x.TXXB260296.

Liao Xi, Yang Bowen, Zheng Xiangquan, et al. Path loss modeling of the coupling between tropospheric scatter and evaporation ducting in complex maritime environments[J/OL]. Journal on Communications, 2026. DOI： 10.11959/j.issn.1000-436x.TXXB260296.

摘要

海洋超视距通信中大气波导与对流层散射机制共存，导致电波传播路径损耗难以准确预测。针对现有模型多聚焦单一传播模式、无法有效刻画混合传播机制的问题，构建基于抛物方程的双机制耦合路径损耗模型。利用中尺度数值模式模拟高时空分辨率非均匀气象参数，通过抛物方程法分别解算蒸发波导与对流层散射机制下的电场强度，进而提出加权因子非相干合成的混合场强求解方法，获得双机制共存的路径损耗。跨海链路试验验证表明，所提模型与实测值吻合良好，平均绝对误差低于4 dB@300 km，均方根误差低于5 dB@300 km，精度优于现有模型，可为海洋对流层超视距通信系统设计与性能评估提供支撑。

Abstract

The coexistence of atmospheric ducting and tropospheric scattering complicates path-loss prediction for maritime over-the-horizon communication. To address the limitations of single-mode models in representing hybrid propagation

a dual-mechanism coupled path-loss model based on the parabolic equation (PE) was developed. A mesoscale numerical model was used to derive spatially inhomogeneous meteorological fields with high spatiotemporal resolution. The PE was then applied to calculate the electric fields associated with evaporation ducting and tropospheric scattering. The two field components were incoherently combined using a weighting factor to obtain the path loss under dual-mechanism coexistence. Cross-sea link measurements showed good agreement between the predicted and measured path losses

with a mean absolute error below 4 dB and a root-mean-square error below 5 dB over 300 km. The proposed model provides higher prediction accuracy than existing models and supports the design and performance evaluation of maritime tropospheric over-the-horizon communication systems.

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references

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