论文部分内容阅读
针对毫米波相阵架构提出了一种迭代波束成形方法。该方法利用在阵列较大的情况下，毫米波信道不同路径的近似正交的性质，通过在收发端阵列不断对信号进行迭代发送和接收，从而获取毫米波信道中具有最大增益的路径，并以最大增益路径对应的阵列响应作为收发双方的波束成形矢量。仿真表明，该方法能够获得接近于奇异值分解方法（singular value decomposition, SVD）的频谱效率,实现高速率数据传输；同时具有快速收敛的特性，一般在迭代3次后算法收敛。
An iterative beamforming method is proposed for the millimeter wave phase array architecture. The method utilizes the nearly orthogonal nature of different paths of the millimeter-wave channel in the case of large array and obtains the path with the largest gain in the millimeter-wave channel by iteratively sending and receiving signals in the receiving-end array The array response corresponding to the maximum gain path is used as the beamforming vector of both the transceiver and the sender. The simulation results show that this method can obtain the spectral efficiency close to that of singular value decomposition (SVD) and achieve high-rate data transmission. Meanwhile, it has the property of fast convergence. Generally, the algorithm converges after three iterations.