The multistage constant modulus ( cm ) array is a cascade adaptive beamforming system that can recover several narrowband co - channel signals without training . the main idea of the smi - cma is to use smi to determine the initial weight for cma operation . the method can come up with the desire signal in despite of the interfering signal is stronger than the desire signal 基于以上考虑，我们提出了基于smi - cma联合自适应方法，该算法可以分离多个同信道信源，由smi算法决定cma算法的初始权向量，在干扰信号较强时，仍有稳定的sinr输出，具有较快的收敛速度。
