基于STK／MATLAB的通信卫星场景建模

为了便于分析、设计卫星通信系统，本文给出了一种基于STK／MATLAB的通信卫星场景建模方法，介绍了大气吸收模型、雨衰模型、发射机和接收机中天线模型的参数设置方法，天线模型与传感器之间的关系，最后以同步卫星为例，选择卫星覆盖区域的信噪比作为参数，对通信卫星发射天线的覆盖区域进行了计算和分析，为卫星地面站的选址提供了有价值的参考，并通过MATLAB对结果进行了二维和三维显示，有很好的应用价值。

STK/MATLAB and Application in Setting up the Scenario of the Communication Satellite

In order to perfume and design the communication satellite system, a method of setting up the scenario of the communication satellite which based on the STK（Satellite Tool Kit）and MATLAB is provided by this paper,meanwhile this thesis introduced how to set the coefficients of the Gaseous Absorption Model, Rain Model, Antenna model（of transmitter or receiver）, the relationship between them, then set up the scenario. Then takes the synchronous satellite for example, and chooses the signal to noise ratio as the coefficients, this paper shows how to caculate and analyze the coverage of the transmit antenna of the satellite, which is referential to set up the facility, the planar and three-dimensional result is showed by the MATLAB, this is useful for application.