介绍了两种目前应用较广的蒸发波导模型:PJ模型和伪折射率模型,通过仿真将两种模型对各种气象输入要素的敏感性进行了分析,定性地描述了气-海温差、风速、相对湿度对两种蒸发波导模型高度的影响程度.同时利用小波对近几年采集的温湿压剖面数据进行降噪处理,得到较为准确的实测蒸发波导高度值,并将其作为参考数据,进而获得了两种蒸发波导模型的特性比对结果,结论显示PJ模型略优于伪折射率模型. Two currently widely used evanescent waveguide models are introduced: the PJ model and the pseudo-refractive index model. The sensitivities of the two models to various meteorological input elements are analyzed through simulation. The gas-sea temperature difference, the wind speed And relative humidity on the height of the two evanescent waveguides.At the same time, using the wavelet to reduce the temperature and humidity pressure section data acquired in recent years, the more accurate measured value of evaporative waveguide height is obtained and used as the reference data, The results of the comparison of the characteristics of the two evanescent waveguide models are obtained. The results show that the PJ model is slightly better than the pseudo-refractive index model.