mmse_siso

QMF滤波器在语音编码中的应用,通过matlab 实验程序设计和实现二通道镜像滤波器(QMF、CQF、OQF)在语音编码中的应用，针对不同的滤波器阶数，采用批量算法，实现和比较波形编码的效率和精度(qmf filter use in wave)

In MATLAB, usually we use function bvp4c() to solve boundary value problem (BVP) of ODE. However, we also can use function ode45() to solve BVP of ODE too. However, ode45() needs all initial values at one point. Therefore we have to construct an auxiliary function, whose input argument is the missing initial value and the return output is the given boundary value, Then we can call function fsolve() to get the missing initial value. This method is particularly efficient it the ODE has one or more parameters. Also this method is essentilal for GNU Octave, because whose function bvp4c() is not programmed for parameter ODE yet.

实现hilbert变换，经过与matlab比较验证，结果相同(Achieve hilbert transform, through comparison with matlab verification, the same result)

数学建模中的各种经典算法，其中涵盖许多经典模型的建立和源代码。(Mathematical modeling in a variety of classical algorithms, which covers many classic models to build and source code.)

matlab做的buck闭环仿真，自己做的，这个是闭环的，加反馈，PID补偿费，用的是增量式PID，连续，稳定(simulation of buck with feenback PID)

This is the machine-generated representation of a Handle Graphics object and its children. Note that handle values may change when these objects are re-created. This may cause problems with any callbacks written to depend on the value of the handle at the time the object was saved. This problem is solved by saving the output as a FIG-file.

说明：  QPSK完整的调制解调程序，直接在matlab里运行就能得出准确的结果，方便(QPSK modulation and demodulation complete program to run directly in matlab accurate results can be obtained to facilitate)

粒子滤波几个历程 里面有英文标注 步骤明确 用于学习使用(Particle filter which has a history of several steps clearly marked in English for learning to use)

基于压缩感知理论对单音频信号以低于奈奎斯特频率进行采样处理(Based compression perception theory, single audio signal sampling below the Nyquist frequency)

modulation en amplitude ASK