智能天线技术的核心是自适应波束的形成，本文首先根据波束形成技术的不同，介绍了三大类自适应算法，基于来波方向的波束形成，基于参考信号的波束形成和基于信号结构特性的盲自适应算法，着重分析了基于参考信号的波束形成算法，并给出了数字波束形成的基本模型。-mart antenna technology is the core of the formation of adaptive beamforming, the paper first of all, according to the different beam-forming technology, introduced the three main types of adaptive algorithms, the DOA-based beamforming, based on the reference signal and the beam-forming characteristics based on the signal structure blind adaptive algorithm, focusing on analysis of the reference signal based on the beamforming algorithm, and digital beamforming are given the basic model.