本程序的性能已经超过其他算法，部分实现了追踪测速迭代松弛算法，包括 MUSIC算法，ESPRIT算法 ROOT-MUSIC算法，旋转机械二维全息谱计算，有较好的参考价值，代码里有很完整的注释和解释，包括随机梯度算法，相对梯度算法，FIR 底通和带通滤波器和IIR 底通和带通滤波器。-This program has exceeded the performance of other algorithms, Partially achieved tracking speed iterative relaxation algorithm, Including the MUSIC algorithm, ESPRIT algorithm ROOT-MUSIC algorithm, Rotating machinery 2-d holographic spectrum calculation, There are good reference value, Code, there are very complete notes and explanations Including stochastic gradient algorithm, the relative gradient algorithm, Bottom-pass and band-pass FIR and IIR filter bottom pass and band-pass filter.