对流层散射传输损耗与大气折射率结构常数相关性研究

doi:10.3969/j.issn.0372-2112.2020.03.014

电子学报 ›› 2020, Vol. 48 ›› Issue (3): 518-523.DOI: 10.3969/j.issn.0372-2112.2020.03.014

对流层散射传输损耗与大气折射率结构常数相关性研究

赵强¹, 张蕊^1,2, 林乐科¹, 李清亮¹, 张玉生¹

1. 中国电波传播研究所电波环境特性及模化技术重点实验室, 山东青岛 266107;
2. 西安电子科技大学物理与光电工程学院, 陕西西安 710071

收稿日期:2018-12-19 修回日期:2019-09-12 出版日期:2020-03-25
- 作者简介:
- 赵强男,1993年6月出生,陕西渭南人.2019年于中国电波传播研究所获得理学硕士学位.主要研究方向为对流层散射传播.E-mail:Chrischao22s@163.com;张蕊女,1979年12月出生,河北正定人.西安电子科技大学在读博士,中国电波传播研究所高级工程师,研究方向为对流层电波传播、无线信道特性测试与建模等.E-mail:zhangr22s@163.com;林乐科 男,1972年8月出生,山东荣成人.南京邮电大学电磁场与微波技术专业博士,中国电波传播研究所研究员,张明高院士工作室科研助手.长期从事电波环境与传播特性研究,修订多项国际电联电波传播国际标准.多次获国防科技进步奖.在国内外期刊和会议合作发表论文两百余篇.现为国际电联杂志《ITU Journal:ICT Discoveries》第三期电波传播专刊客座编辑(Guest Editor),中国电子学会高级会员,中国空间科学学会会员,《电波科学学报》编委.
- 基金资助:
- 国家自然科学基金 (No.61471329）; 装备预研项目 (No.41416020104）

Research on the Correlation of Troposcatter Transmission Loss and Structure Constant of the Refractive Index

ZHAO Qiang¹, ZHANG Rui^1,2, LIN Le-ke¹, LI Qing-liang¹, ZHANG Yu-sheng¹

1. National Key Laboratory of Electromagnetic Environment, China Research Institute of Radiowave Propagation, Qingdao, Shandong 266107, China;
2. School of Physics and Optoelectronic Engineering, Xidian University, Xi'an, Shaanxi 710071, China

Received:2018-12-19 Revised:2019-09-12 Online:2020-03-25 Published:2020-03-25

摘要/Abstract

摘要： 基于大气湍流非相干散射理论，采用泰勒方法对湍流谱函数进行近似，推导获得了对流层散射传输损耗与大气折射率结构常数的关系，即L-C模型；开展了对流层散射传播试验，基于WRF（Weather Research and Forecasting）数值模式对试验期间大气折射率结构常数进行预报；基于预报的大气折射率结构常数数据应用L-C模型预测对流层散射传输损耗，并与试验测试损耗值进行对比研究.结果表明，应用L-C模型预测的损耗值与实测值变化趋势吻合较好，均方根误差不超过6dB，并且传输损耗与大气折射率结构常数间的相关系数均大于0.7，表明了对流层散射传输损耗与大气折射率结构常数之间较强的相关性.这种对流层散射与大气折射率结构常数之间的相关性对于对流层散射传输的机理和建模研究都有重要意义.

关键词: 对流层散射, L-C模型, 传输损耗, 大气折射率结构常数, 相关性

Abstract: Based on the incoherent scatter theory of atmospheric turbulence,the turbulence spectrum is approximated by the Taylor method,and the relationship between the tropospheric scattering transmission loss and the atmospheric structure constant of the refractive index is obtained,that is,L-C model.The troposcatter propagation experiment was carried out,and the atmospheric structure constant of the refractive index during the test was predicted based on the numerical weather prediction model of WRF (Weather Research and Forecasting).Based on the forecasted data of the atmospheric structure constant of the refractive index,the L-C model is used to predict the troposcatter transmission loss,and compared with the measured loss.It is shown that the variation tendency of the predicted loss and the measured loss are in good agreement,and the RMS (root mean square) errors are no more than 6dB.On the other hand,the correlation coefficients between the transmission loss and the structure constant of the refractive index are all greater than 0.7.All of these show that there is indeed a strong correlation between troposcatter transmission loss and structure constant of the refractive index,and this correlation is of great value for the investigation of the mechanism and modeling on troposcatter transmission.

Key words: troposcatter, L-C model, transmission loss, structure constant of the refractive index, correlation

中图分类号:

TN011

赵强, 张蕊, 林乐科, 李清亮, 张玉生. 对流层散射传输损耗与大气折射率结构常数相关性研究[J]. 电子学报, 2020, 48(3): 518-523.

ZHAO Qiang, ZHANG Rui, LIN Le-ke, LI Qing-liang, ZHANG Yu-sheng. Research on the Correlation of Troposcatter Transmission Loss and Structure Constant of the Refractive Index[J]. Acta Electronica Sinica, 2020, 48(3): 518-523.

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对流层散射传输损耗与大气折射率结构常数相关性研究

Research on the Correlation of Troposcatter Transmission Loss and Structure Constant of the Refractive Index

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