备件库存管理的(s,s)策略实现，模型为随机模型-Spare parts inventory management (s, s) policy implementation, the model for the stochastic model

This function uses SRP-PHAT with Stochastic Region Contraction (SRC) global-optimization algorithm to locate a single source using a frame of data and M microphones. Hoang Do - LEMS, Division of Engineering, Brown University.

esprit algorithm signal frequency interference can be assessed Including quaternion various calculations, Including stochastic gradient algorithm, the relative gradient algorithm.