全类型大气波导探测方法研究  

Research on Detection Methods for All Types of the Atmospheric Duct

作　　者：唐海川[1] 焦林 周孟龙 黄小毛 TANG Haichuan;JIAO Lin;ZHOU Menglong;HUANG Xiaomao(Dalain Naval Academy,Dalian 116018,China;Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China;Zhong Ke Xing Tu Wei Tian Xin(Beijing)Technology Co.,Ltd.,Beijing 100094,China;Wan He Photoelectric Technology Co.,Ltd.,Luoyang 471032,China;Hundreds-GHz Sensor Industrial Control Technology Co.,Ltd.,Wuxi 214400,China)

机构地区：[1]海军大连舰艇学院,辽宁大连116018 [2]中国科学院大气物理研究所,北京100029 [3]中科星图维天信(北京)科技有限公司,北京100094 [4]万合光电技术有限公司,河南洛阳471032 [5]汉哲森工控科技有限公司,江苏无锡214400

出　　处：《海洋技术学报》2023年第5期17-25,共9页Journal of Ocean Technology

基　　金：国家子午工程二期资助项目(GXTC-A1-21631336)。

摘　　要：大气波导是对流层中一种异常大气折射结构,它改变了电磁波的正常传播特性,严重影响了电子设备使用。目前对于大气波导的探测手段还比较单一,无法实现全类型大气波导的探测。针对这一现状,本文基于转动拉曼大气温度探测和振动拉曼大气湿度探测的原理,结合蒸发、表面和悬空波导的诊断方法,构建了全类型大气波导诊断模型。利用拉曼激光雷达新技术,实现了全类型大气波导的监测诊断。通过对比拉曼激光雷达和无线电探空仪测量数据,得到:拉曼激光雷达测量的大气温度廓线平均误差为0.535℃,温度误差小于1℃的概率为82.5%;水汽混合比廓线平均误差为0.121 7 g/kg,水汽混合比误差小于1 g/kg的概率为90%,基于拉曼激光雷达的悬空波导高度、厚度、强度诊断准确率分别为94.8%、85.8%和60%;此外,基于拉曼激光雷达的连续探测数据,可以进一步分析大气波导特征量随时间的变化规律。Atmospheric duct is an abnormal refraction structure in the troposphere atmosphere,which can change the normal propagation characteristics of the electromagnetic wave and seriously affect the use of the electronic equipment.At present,the detection method of the atmospheric duct is still relatively simple,which cannot achieve the monitoring of all types of the atmospheric duct.In view of this situation,based on the principle of the rotating Raman for the atmospheric temperature detection and the vibration Raman for the atmospheric humidity detection,combined with the diagnostic methods of the evaporation duct,the surface duct and the elevated duct,a diagnostic model of all types of atmospheric duct is constructed in this paper.Based on the new Raman laser radar technology,this paper solved the diagnosis of all types of the atmospheric duct.By comparing the data measured by the Raman Lidar and the radiosonde,the conclusion is as follows:the temperature and the humidity measured by the Raman Lidar are in good agreement with the data of the radiosonde,the average error of the temperature profile is 0.535℃,and the probability of the temperature error less than 1℃ is 82.5%.The average error of the water vapor mixing ratio profile is 0.1217 g/kg,and the probability of the water vapor mixing ratio error less than 1 g/kg is 90%.The diagnostic accuracy of the height and the thickness and the strength of the atmospheric duct based on Raman Lidar is 94.8%,85.8%and 60%respectively.In addition,based on the continuous detection data of the Raman Lidar,the variation of the atmospheric duct characteristics with time can be further analyzed.

关 键 词：全类型大气波导 综合诊断模型 拉曼激光雷达 探测 

分 类 号：P79[天文地球—海洋科学]