中文说明：
本文开发了一种自适应算法来估计mmWave信道参数，该算法利用了信道的较差散射特性。 为了使该算法有效运行，设计了一种新颖的分层多分辨率码本，以构造具有不同波束宽度的训练波束成形向量。 对于单路径信道，推导了使用所提出算法的估计误差概率的上限，并且获得了对算法自适应阶段之间训练功率的有效分配的一些见解。
English Description：
< p > In this paper, an adaptive algorithm is developed to estimate mmwave channel parameters, which takes advantage of the poor scattering characteristics of the channel. In order to make the algorithm work effectively, a novel layered multiresolution codebook is designed to construct training beamforming vectors with different beamwidths. For single path channel, the upper bound of estimation error probability using the proposed algorithm is derived, and some opinions on the effective allocation of training power between adaptive stages of the algorithm are obtained.