poincare

zzzzz_qftdemos matlab/simulink

关于非线性离散系统辨识！还不错的东西，自己课设的东西！(Identification of nonlinear discrete systems!)

Matlab的流程控制语句，掌握循环结构。 Matlab的脚本文件、函数文件编写。 Matlab脚本文件、函数文件的调试。 (Matlab flow control statements, control loop structure. Matlab script file, the function document preparation. Matlab script files, function files debugging.)

智能天线lms算法的MATLAB仿真程序(lms code for smart antenna)

自己写的,在matlab环境下将yuv图像转为rgb文件,可适用于444,422,420的格式.(wrote it myself, in the Matlab environment will yuv rgb images to documents, applicable to the 444, 422,420 format.)

用matlab编写逆投影变换程序，三个m文件分别代表最近邻插值法，双线性插值法，立方卷积插值法，通俗易懂，含有测试图片，打开就能用(Inverse projection transformation program, matlab prepared three m documents represent the nearest neighbor interpolation, the bilinear interpolation and cubic convolution interpolation method, easy to understand, contain a test image, open the can)

newmark b 方法计算地震动反应谱(Newmark b method to shock response spectrum)

Nikola Tesla (Serbian Cyrillic: Никола Тесла 10 July 1856 – 7 January 1943) was a Serbian American inventor, electrical engineer, mechanical engineer, and ...

说明：  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.)

This function computes the fourier series of a signal x(t). The amplitudes of the fourier series have the same dimension of the original signal, so this function is useful for immediate computation of the actual frequency components, without further processing.