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This is about the code of polardb function to plot in polar coordinates

加入3点或5点中值平滑处理后再绘制上述基频曲线与未平滑曲线比较，观测完整一段话音的基频包络变化情况(Add to 3:00 or 5:00 in the value of the smoothing then draw the base frequency curve is not a smooth curve compared with the observed period of complete voice baseband envelope changes)

说明：  LDPC码的matlab仿真程序，希望对大家有用，不客气，(LDPC codes matlab simulation program, in the hope that useful, at worst,)

说明：  通过BP神经网络学习一个3维的函数的源代码，为加快速度，程序初始化的为已经经过学习的得到结点权值，如果预设为随机值，将重新学习。(BP neural network through a three-dimensional study of the function of the source code to speed up, the initialization procedure for the study has already been node weights, if limited to random value, re-learn.)

This is the program for mu law companding,,,,

计算电磁学 三维PML吸收边界程序 采用MATLAB编写(Three-dimensional computational electromagnetics PML absorbing boundary program written using MATLAB)

黄金分割法，附带说明，程序可直接运行,,有实例说明，是数值最优化方面的(Golden section method, with instructions, the program can be run directly)

用于提取心音包络的程序，编译运行较好，有界面显示。(Used to extract the heart sound envelope program, compile and run better, there are screen displays.)

机器人运动学正解求解过程，计算出机器人各个关节角的角度(Robot kinematics solving process to calculate the angle of each joint angle of the robot)

Matlab source code to visualize Homography co雈ficients.