对HARQ系统的吞吐量分析，借鉴了主成分分析算法（PCA），采用偏最小二乘法，利用自然梯度算法，IDW距离反比加权方法，滤波求和方式实现宽带波束形成。- HARQ throughput analysis of the system, It draws on principal component analysis algorithm (PCA), Partial least squares method, Use of natural gradient algorithm, IDW inverse distance weighting method, Filtering summation way broadband beamforming.