面向复杂海况的海上无人船对星通信自适应波束成形方法OA

Maritime satellite communication in harsh environments faces challenges due to frequent roll motions of unmanned surface vehicles(USVs)caused by sea waves.Under these conditions,traditional fixed beamforming schemes,based on aligning beams using the relative spatial positions of the transmitter and receiver,often fail,leading to link interruptions or degraded performance.This issue represents a persistent challenge for maritime satellite communication in high sea states.To address this,we propose an adaptive beamforming approach to compensate for the roll angle variations induced by wave motion.A corresponding uplink transmission framework and roll angle prediction model are designed.Based on the predicted roll angle information,channel state information is calculated,enabling a joint beamforming algorithm for USV-to-satellite communication to achieve effective beam alignment and optimization under high sea states.Simulation results demonstrate the accuracy of the roll angle prediction for USVs and the reliability of adaptive beamforming in ensuring transmission performance in harsh sea environments.