Pulse

说明：  利用matlab进行几何畸变。给定一幅图像，固定其坐标，然后，进行畸变。(using Matlab for geometric distortion. To set an image, fixed his coordinates, and then for distortion.)

本程序直接摘自文献： ％ S. K. Mitra. Digital Signal Processing: A Computer-Based Approach. Second Edition, ％ McGraw-Hill,2001 清华大学出版社，2001(directly extracted from the literature : S. K. Mitra%. Digital Signal Processing : A Computer-Based Approach. Second Edition. % McGraw-Hill, 2001 Tsinghua University Press, 2001)

说明：  性能优异的智能优化算法，灰狼优化算法完整代码，通俗易懂，有望应用于多方面的工程领域。(Excellent performance of intelligent optimization algorithm, gray Wolf optimization algorithm complete code, easy to understand, is expected to be applied in many aspects of the engineering field.)

介绍了常见的时频分析方法，包括短时傅里叶变换，Wigner-Ville分布以及小波变换等，结合MATLAB，引导读者如何运用其来进行时频分析(Describes the common time-frequency analysis methods, including short time Fourier transform, Wigner-Ville distribution and wavelet transform, combined with MATLAB, to guide the reader how to use it to carry out time-frequency analysis)

关于脉冲信号的matlab程序。包括单边衰减指数信号，正弦信号，抽样信号，矩形脉冲信号等。(matlab program about pulse signal.)

仿真线性调频信号，检测目标，并作ddc和脉压处理(Simulation chirp signal detection target ddc and pulse pressure processing)

要求使用继电自整定方法对其实施自适应PID控制。 1、选择采样时间0.1s，把对象离散化。 2、加继电（开关）控制，测量对象的Tc,Kc。 3、利用ZIEGLER-NICHOLS 公式表，确定PID参数。 4、实现闭环控制。 5、根据调节效果，修正PID参数。 (Require the use of relay tuning methods for its implementation of the adaptive PID control. 1, select the sampling time 0.1s, the discrete objects. 2, plus relay (switch) control, measurement object Tc, Kc. 3, using ZIEGLER-NICHOLS formula table, determine the PID parameters. 4, closed loop. 5, according to moderating effect, the amendment PID parameters.)

说明：  随机信号复杂度matlab程序。可以分析信号的复杂度。而且有上限(The complexity of random signal matlab program. The complexity of the signal can be analyzed. But also limit)

This program in Matlab code simulates the wave propagation in a 1D dispersive medium by using FDTD method

利用matlab中傅里叶变换进行函数频谱分析的程序。亲测好用！(Fourier transform using matlab function spectrum analysis procedures. Pro-test easy to use!)