对现有数字调制方式识别类型有限的问题，提出一种基于星座图的分类算法。算法首先利用盲均衡技术克服信道的多径效应与系统问步误差，再对信号减法聚类，提取聚类中心与理想星座图模型进行匹配，从而实现MAsK、MPsK、MOAM等调制方式的识别。-Existing types of digital modulation recognition of limited problem, a classification algorithm based on the constellation. Firstly, the use of blind equalization technique to overcome the effects of multipath channel and ask-step system error, and then the signal subtraction clustering, cluster centers extracted constellation model and the ideal match to achieve MAsK, MPsK, such as modulation recognition MOAM.