临近空间飞行器低仰角测控通信中的自适应盲波束形成算法

摘要

由于临近空间复杂的大气环境，临近空间飞行器的测控通信系统与以往的卫星、导弹等系统测控有很大不同，针对低仰角测控通信所面临的多径反射干扰严重的问题，建立了系统的多径模型，提出了一种利用最大信干噪比准则进行测控通信的自适应盲波束形成算法，并进行了测控站固定和移动情况下算法性能的数值仿真，结果表明算法不仅具有很好的收敛性．并且权值的迭代能够使波束最大增益方向始终对准到期望方向%Because of the complex atmospheric environment, the measurement and control communication system of near space vehicles is very different from the previous satellites, missiles, etc system's, this paper established the system's muhipath model for the low elevation measurement and control communications, and given a adaptive blind beamforming algorithm based maximum SINR criteria, the simulation results show that the algorithm not only has the very good convergence, and weights iterative can make the biggest gain direction of beam always to the desired direction.