Secure transmission method for dual polarized satellite MIMO systems based on directional polarization state modulation
LUO Zhangkai1, WANG Huali1, Lü Wanghan2
1. Department of Electrical and Computer Engineering, PLA University of Science and Technology, Nanjing 210007, China; 2. Electronic and Optical Engineering, University of Science and Technology, Nanjing 210007, China
为提高卫星信息传输过程中窃听难度,提出一种基于方向极化状态调制技术的双极化卫星多输入多输出(multi input multi output, MIMO)安全传输方法。该方法将传输信号的极化状态与接收机方位信息相结合,实现信号差异性发射,增大非期望方向接收机解调信息的难度。理论分析和仿真结果表明,相比于传统调制技术,基于方向极化状态调制技术为双极化卫星MIMO系统的信息传输提供了一种更加安全的传输方案。