With the rising demand ever, the orbital resource and frequency spectrum resource for GSO communication satellite has been almost fully exploited and utilized, by means of cross polarization, multi coverage, and orbital space reduction.

• 随着通信需求的增长，人们采用极化复用、空间复用和缩小轨位间距等手段，对静止卫星轨位和无线电频谱资源作了接近极限的开发利用。