以Rimoldi提出的分解方法为基础,文中介绍了一种与连续相位调制CPM(Continuous PhaseModulation)相适应的环卷积编码技术,该编码与CPM内在编码具有相同的代数结构,文中给出了两者结合后的常用研究方法。通过计算机搜索,以最小欧氏距离最大为目标,得到了一些典型参数下最优的编码方案。仿真结果表明,采用环编码后CPM信号的误比特性能有很大的提升。 Based on the decomposition method proposed by Rimoldi, a convolutional encoding technique is proposed in this paper, which is compatible with continuous phase modulation (CPM). The encoding has the same algebraic structure as the CPM intrinsic coding. In this paper, After the combination of common research methods. By computer search, the minimum Euclidean distance as the goal, obtained under some typical parameters of the optimal coding scheme. The simulation results show that the error performance of CPM signal is greatly improved after using ring coding.