1[1] BESTE.D C.Design of satellite constellations for optimal continuous coverage[J].IEEE Trans Aerospace and Electronic Systems,May 1978,Aes-14:466~473.
2[2] RIDER L.Analytic design of satellite constellations for zonal earth coverage using inclined circular orbits[J].Journal of the Astronautical Sciences,January-March 1986,34:31~64.