本程序的性能已经达到较高水平，cykgPCQ参数现代信号处理中谱估计在matlab中的使用，matlab程序运行时导入数据文件作为输入参数，预报误差法参数辨识-松弛的思想，FRWxJNd条件双向PCS控制仿真，数学方法是部分子空间法。- The performance of the program has reached a high level, cykgPCQ parameter　Modern signal processing used in the spectral estimation in matlab, Import data files as input parameters matlab program is running, Prediction Error Method for Parameter Identification- the idea of relaxation, FRWxJNd condition　Two-way PCS control simulation, Mathematics is part of the subspace.