Analysis of designing earth exploring satellite system

According to characteristic of regional exploring satellite system,an intermittent regional covering orbit design scheme is proposed using circular sun synchronization orbit.Because the sun synchronization satellites can observe the objects on earth under perfect illumination condition,the orbit characteristic of the sun synchronization orbit system is analyzed first.After using the software Satlab,the scheme designs the correlated parameters such as the sun synchronization orbit altitude?elevation and satellites original phase and so on.Through Satlab the satellites covering shape on earth and covering time under different elevation at aim area are given.At last a kind of link scheme for this orbit is designed as reference.