files

自编小波变换程序，小波基Morlet，matlab环境。(Self wavelet transform process, wavelet Morlet, matlab environment.)

LDPC码在MATLAB中的八环成功仿真算法，大围长QC-LDPC码。值得学习一下(LDPC code in MATLAB in the eight-ring successful simulation algorithm, large-scale long QC-LDPC code. Worth learning)

SVPWM是近年发展的一种比较新颖的控制方法，是由三相功率逆变器的六个功率开关元件组成的特定开关模式产生的脉宽调制波，能够使输出电流波形尽可能接近于理想的正弦波形。空间电压矢量PWM与传统的正弦PWM不同，它是从三相输出电压的整体效果出发，着眼于如何使电机获得理想圆形磁链轨迹。SVPWM技术与SPWM相比较，绕组电流波形的谐波成分小，使得电机转矩脉动降低，旋转磁场更逼近圆形，而且使直流母线电压的利用率有了很大提高，且更易于实现数字化。(SVPWM is a novel control method developed in recent years. It is a pulse width modulation wave generated by a specific switching mode consisting of six power switching elements of three-phase power inverters, which can make the output current waveform as close as possible to the ideal sinusoidal waveform. Space voltage vector PWM is different from traditional sinusoidal PWM. It is based on the overall effect of three-phase output voltage, focusing on how to obtain the ideal circular flux trajectory of the motor. Compared with SPWM, the harmonic component of winding current waveform is smaller, which reduces the torque ripple of motor, makes the rotating magnetic field more close to the circle, and improves the utilization ratio of DC bus voltage greatly, and makes it easier to realize digitization.)

使用信号灯(semaphore)，事件(Event)，临界区(CriticalSection)进行线程同步的例子( Uses the signal light (semaphore), the event (Event), the critical zone (CriticalSection) carries on line regulation synchronization the example )

variable step-size fourth-order Adams Predictor-Corrector method

matlab蚁群算法求解TSP问题，可直接运行，人工智能作业。(matlab, ACO for TSP.)

CR协作频谱感知仿真，感知算法仿真，非常详细(CR collaborative spectrum sensing simulation)

Transfer Function of PID controller is given in detailed Form.And the Matlab Implementation also avialable.Help ful for Control Engineers and Technologists.

The plane stress analysis refers to the problems where the thickness of the structure is very small compared to other dimensions of the structure in the XY plane. The plane stress problem is a 2D problem. The stresses in the z direction are considered to be negligible,
 
0, the stress-strain compliance relationship for an isotropic material becomes,

用matlab实现语音录放，并且画出频域和时域波形。(Using matlab voice recorders, and draw the frequency-domain and time-domain waveform.)