Dynamic ephemeris beam jump simulation method based on pre-synthesized directional diagram

Abstract

The invention discloses a pre-synthesized directional diagram-based dynamic ephemeris beam jump simulation method, which is applied to the technical field of satellite communication and comprises the following steps of: acquiring a transmission angle of wave control information and a satellite-ground angle at the current moment; calculating an index angle according to the transmission angle and the satellite-ground angle information; according to the index angle, indexing is carried out from a directional diagram pre-stored in the wireless channel simulation instrument, and a space beam component is obtained; the directional diagram is a directional diagram of a pre-synthesized phased-array antenna; and realizing beam hopping according to the spatial beam component and the beam control information. Compared with other wave beam jump simulation methods, the method is simple in principle, saves logic resources of a wireless channel simulator, can complete wave beam jump test of a low-orbit satellite based on the dynamic ephemeris, and can also be applied to a wave beam jump system based on a ground station.

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