초록 ▼

An elliptical orbit satellite system which describes communication and TT&C with ground stations. Earth stations are located for the circular orbiting satellite in a way such that the line of sight can never include geo synchronous satellites. The ground stations for the elliptically orbiting satell

An elliptical orbit satellite system which describes communication and TT&C with ground stations. Earth stations are located for the circular orbiting satellite in a way such that the line of sight can never include geo synchronous satellites. The ground stations for the elliptically orbiting satellites monitor the position of the satellite, and no antenna communicates with a satellite which is in direct line of sight between the antenna and a geo satellite. Another aspect of the invention locates two TT&C stations, separated in longitude by 90.degree. and configures these stations such that each satellite in each constellation will be able to communicate with one of the two TT&C stations once during each satellite rotation period.

대표청구항 ▼

[ What is claimed is:] [1.] A method of communicating between a ground station on Earth and a constellation of satellites orbiting around the Earth, comprising the steps of:orienting a first ground antenna in said ground station to follow a first orbiting satellite so that said first orbiting satell

[ What is claimed is:] [1.] A method of communicating between a ground station on Earth and a constellation of satellites orbiting around the Earth, comprising the steps of:orienting a first ground antenna in said ground station to follow a first orbiting satellite so that said first orbiting satellite remains illuminated by a beam from said first ground antenna, whereby said first ground antenna communicates with said first orbiting satellite;monitoring a position of said first ground antenna;calculating an area where said beam from said first ground antenna will illuminate, and determining if said beam could interfere with a transmission to another satellite; andceasing transmission of said beam from said first ground antenna to said first orbiting satellite when determining that said beam could interfere.