三状态信道模型在卫星移动通信系统中的应用研究

3-State Channel Model and Its Application in Mobile Satellite Communications

在理论研究的基础上，提出一种新的卫星信道模型。模型按照卫星直视信号受遮挡的程度不同，将陆地卫星移动通信信道质量的变化描述为三个不同的状态。同时考虑了卫星对接收机仰角不同对信道参数的影响，使得对信道特性的描述更加直观、合理。

A new satellite channel model is proposed based on theoretical analysis, which considers such environments as urban, rural or open areas and their influence on satellite signals. The model treats the change of chanael properties as 3 different states according to the extent to which the line-of-sight signal is shadowed. Meanwhile, the influence elevation angle has on the model parameters is also discussed which makes the model more rational.