非归零型差分相位调制信号建模与仿真分析 ，包含位置式PID算法、积分分离式PID，包含特征值与特征向量的提取、训练样本以及最后的识别。- NRZ type differential phase modulation signal modeling and simulation analysis, It contains positional PID algorithm, integral separate PID, Contains the eigenvalue and eigenvector extraction, the training sample, and the final recognition.