Dynamic hybrid beam tracking system for satellite communications

Abstract

The present invention discloses a dynamic hybrid beam tracking system for satellite communications, the system comprising: classifying beam tracking into three operating modes according to a current reference antenna orientation stored in memory, an antenna orientation updated by a mechanical triple-axis shaft, an incoming path direction of a satellite with respect to a user terminal antenna broadside direction, a received signal strength indicator, and a predefined antenna field-of-view. The three operating modes include: a first mode in which a coarse beam is employed with a low sampling rate for large-scale tracking; a second mode in which a fine beam is employed with the same low sampling rate for medium-scale tracking; and a third mode in which a fine beam is employed with a high sampling rate for small-scale tracking. The system thereby achieves precise and adaptive beam alignment to enhance satellite communication performance.

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