Abstract:
The prediction of rain fade slope on satellite link is currently an essential parameter used by system designers for the development of communication power control and error-correction schemes, which mini-mize effects of the link outages for their systems. It is also useful for the implementation of computer generated received signal for primary experiments. Due to its time variation and dependence on the rain type and characteristics, it will be useful to develop an efficient model that fits the fade slope evaluated from the link. Fade slope indicates the rate of change of rain attenuation. The knowledge of fade slope of attenuation caused by rain or other meteorological events are very important for fade mitigation techniques. Knowledge of this parameter is important for determining the required tracking speed of fade mitigation techniques. The fade slope depends on attenuation level, on sampling time and on climatic parameters (drop size distribution and therefore on the type of rain).

Keywords:Prediction of Rain