music_method

短时傅里叶变换可以用差分模式来实现，对书上的运算式做了稍许的改变。改变-计算差分序列的第一列数据时用的是第一列的元素减去当前行的最后一列元素。原算法中采用的是第一列元素减去下一行第二列元素。原算法加窗之后结果比较好，不加窗时结果误差很大，而改变之后的算法不加窗效果依然很好。(Short time Fourier transform can be used to achieve the differential mode of expression on the book made a slight change. Change- calculating the difference sequence of the data with the first column is the first column of the matrix by subtracting the current element in the last column of row. Is used in the original algorithm subtracts the elements of the first column of the next row and the second column elements. After the results of the original algorithm windowed better, when the results window without great error, and after changing algorithms no window effect is still very good.)

说明：  this is a source for regression and decision

频带数字通信中，频带一阶锁相环simulink模型(band digital communications, a frequency band PLL Simulink model)

Finding the poles and zeroes of a function and specifying them on the matlab window.

BOOT PI CLOSE LOOP CONTOLLER

viterbi译码 卷积编码 硬判决 软判决(Adaptive viterbi decoder is used for decoding codes of long constraint length, Where as viterbi decoder is used for decoding short constraint lengths. In order to minimize power consumption and BER)

这个是有限数字滤波器的设计程序，有低通高通，带通等滤波器设计。(This is a limited number of filter design process, a low pass high pass, band pass and other filter design.)

计算最小自由度下球坐标两个自由度的最优值。(Spherical coordinates to calculate the minimum degree of freedom under the optimal value of the two degrees of freedom.)

安德森《计算流体力学及其应用》第七章拟一维喷管流动的数值解 7.5节 再论亚声速—超声速等熵喷管流动的CFD解法。自己编写matlab源代码。(Anderson the computational fluid mechanics and its application "chapter 7 quasi one-dimensional nozzle flow numerical solution of section 7.5 then theory subsonic- supersonic isentropic nozzle flow of CFD method. His writing matlab source code. )

说明：  经验模态分解 亲测好用，可以带入自己的数据(Empirical modal decomposition is easy to use and can bring in its own data.)