Differential-Equations

steepest descent method for estimation

说明：  This is the first part of Noonegative Matrix Factorization

该程序实现两种具有代表性的EKF与UKF方法在目标跟踪中的性能对比，具体通过MSE实现跟踪效果。(The program implements two methods EKF and UKF representative performance comparison in target tracking, specifically by MSE achieve tracking.)

matlab code for erlang formula calculation.. Enjoy the code

说明：  国外的CIC补偿滤波器设计文件，非常有用(Abroad, CIC compensation filter design files, very useful)

实时处理声音降调 matlab源代码 短时傅里叶变换(Real-Time Speech Pitch Shifting)

B样条曲线生成程序,HHT插件等。rilling版本，供大家参考学习。 (B-spline curve generation procedures, HHT, such as plug-ins. rilling version for your learning.)

用于计算射线声学声线,来找到所有声线中我想要的声线(to find the best acoustic line all )

双闭环可逆直流调速（H桥） 波形很稳定 适合用于学习(Reversible double-loop DC speed (H-bridge) is very stable waveform suitable for learning)

根据齿轮基本参数，计算啮合刚度，得到具体的刚度值。(According to the basic parameters of the gear, the meshing stiffness can be calculated.)