基于雨胞分布的视距链路雨衰减预报模型

Prediction model of rain attenuation based on the EXCELL rain cell model for the terrestrial line-of-sight systems

基于指数雨胞分布,推导得到路径调整因子,提出了一种新的视距链路雨衰减预报模型。利用ITU-R视距链路雨衰减数据库数据回归得到了预报模型中的参数。通过和ITU-R模型以及近几年发展的几种雨衰减模型比较表明,这一模型较其他模型具有更好的预测精度。

Based upon the EXCELL rain cell model, a new prediction model of rain attenuation for the terrestrial line-of-sight systems is proposed, where a new path adjustment factor is developed and the parameters of path adjustment factor is regressed based on the experimental data in ITU-R database. The comparison between ITU-R model and the models developed in recent years shows that the new model has better agreement with the experimental data than other models.