基于Web的资源卫星覆盖查询设计与仿真

Design and Simulation of Inquiries about Resource Satellite Coverage on Web

卫星覆盖是卫星应用中最主要的环节之一,它将决定卫星的最终服务范围。根据卫星和地球间的关系可以将卫星分为两类:静止星和动态星;静止星的覆盖范围理论上是个常量,动态星的覆盖范围随着时间而动态地改变。为了方便用户实时查询过境的动态卫星,提到一种基于网络的卫星覆盖查询系统。根据卫星类别分别提出了两种传感器覆盖模型,并简单描述了网络访问的实现方式,从而实现了对卫星覆盖的动态仿真。为了验证仿真结果的有效性,将其结果和卫星软件STK覆盖模块仿真结果进行了比较,整体得到了较好的仿真效果。

Satellite coverage is one of the most important elements of satellite applications. The satellites can be classified into two categories according to the mutual relations of location between the earth and satellites： geostationary satellites and non - geostationary satellites. Theoretically, the coverage area of geostationary satellites is a con- stant and the non - geostationary satellite is a variable. In order to facilitate user＇s real - time query about the dynamic satellites which pass through the specific regions, in the paper, an inquiry system for satellite coverage on web is proposed. In this inquiry system, two kinds of coverage models for sensor are proposed. In order to test the result of this inquiry system, STK （satellite tool kit） is adopted to simulate the satellite coverage area. And finally, through the comparison of simulation results between this system and STK, this inquiry system gets a good result.