直接法，间接法，AR普 功率谱估计,其他的自己看文档就能明白了-Direct method, indirect method, AR & P power spectrum estimation, the other will be able to understand a document that looks at

matlab功率谱，带显著性检验,程序给予时间序列的自相关过程做简介估算-matlab power spectrum, with a significant test, the program to give time series of self-related processes do estimates About