Digital_Signal_Prcessing_Edit2

关于功率谱估计的,周期图法,自相关法,bartlett法和welch法,还有一个复倒谱估计的代码(On the power spectrum estimation, periodogram, since the relevant law, bartlett law and Welch law, there is a Complex Cepstrum estimated code)

用于求解组稀疏的matlab代码，可以设置系数为非负。也可以设置分组是否为重叠。(This is a solver for (1) group-sparse basis pursuit model: minimize sum_i w_i*||x_{gi}||_2 subject to Ax = b, x >= 0 (optional),)

this code helps to find roota of equation by gauss seidel method

matlab lms code whaich is used for echo cancellation

blasius problem to find the skin friction

一个基于matlab视频修复程序，可作为实验或是学习的参考。(A code for video inpaiting based on matlab ,and it can be used as the reference of the experiment or study. )

交流电机前馈控制的matlab仿真实验，使用的控制器是PID控制器(AC motor feedforward control matlab simulation, PID controller using the controller is)

Calculation of Reliability parametr

脉冲振幅（PAM）的仿真：脉冲振幅调制，即是脉冲载波的幅度随基带信号变化的一种调制方式。如果脉冲载波是由冲激脉冲组成的，则前面所说的抽样定理，就是脉冲振幅调制的原理。(Pulse amplitude (PAM) of the simulation: Pulse amplitude modulation, that is, the range of carrier pulse with changes in base-band signal of a modulation. If the pulse carrier is formed by the impulse of the pulse, then said in front of the sampling theorem, that is, the principle of pulse amplitude modulation.)

机械齿轮的参数优化，设计一直齿圆柱齿轮传动, 已知其齿数比u= 4, 小轮轴 扭矩T 1= 100N. m, 单向传动, 润滑良好, 非对称布置, 两齿 轮材料 小齿轮40Cr, 调质, 齿面硬度HB= 250~ 280, [ RH ] 1 = 630MPa, [ RF ] 1= 288MPa 大齿轮45 钢, 调质, 齿面硬度 HB= 220~ 250, [ RH ] 2= 550MPa, [ RF ] 2= 204MPa, 取载荷系 数K = 1. 28。(Parameter optimization of the mechanical gear design has been Cylindrical Gear, known gear ratio u = 4, small axle torque T 1 = 100N m, one-way transmission, well-oiled, non-symmetrical arrangement of the materials of the two gears pinion 40Cr quenched and tempered tooth surface hardness HB = 250 ~~ 280 [RH] 1 = 630 MPa [RF] 1 = 288MPa large gear 45 steel, quenched and tempered tooth surface hardness HB = 220 to 250, [RH] = 550MPa , [RF] 2 = 204MPa, to take load factor K = 1 28.)