次声台站环境背景噪声源特性分析

气象要素是影响次声台站背景噪声建模的重要因素,为确定各气象要素对模型的具体影响,探明次声台站环境背景噪声的产生根源,采用研究均方根值、功率谱密度对比分析的方法对国际次声台站I34的次声数据和气象数据进行了处理和分析,分析了各气象要素产生台站环境背景噪声的原因。结果表明:风速、风向、温度和压强为影响次声台站环境背景噪声的主要因素,其中风速对背景噪声的影响程度最大。分析结果可为次声台站背景噪声建模提供理论依据。

Analysis of the characteristics of the background ambient noise origin of infrasound station

Meteorological elements are the important factors influencing the background noise model of the infrasound station. In order to determine the specific impact of meteorological elements on the model and find out the root ambient background noise of infrasound station, analysis the reasons for the meteorological elements which cause the background ambient noise of station through processing and analysis of the infrasound and the meteorological data from international infrasound station I34. The results show that the wind speed, wind direction, temperature and pressure is the main factors influencing the infrasound station environment background noise, the wind speed of the influence of background noise is the largest. Analysis results can provide theory basis for the modeling of background noise for the infrasound station.