speechdetect

本程序是使用MATLAB语言采用迎风格式解对流方程，对流方程在工程上有很广泛的应用，而迎风格式的精度比较高还包括用跳点格式解扩散方程的初值问题，所以有两个程序 (This procedure is to use the MATLAB language solution using upwind convection equation, the convection equations in engineering, there is a wide range of applications, and the accuracy of upwind scheme also includes a relatively high point format with jump-diffusion equation solution of the initial value problem, so there are two procedures)

DE差分进化优化算法的源代码，从外文网站下载(DE optimization toolbox from the web.)

说明：  用四阶古典RK方法解初值问题： 取h=1/8。每隔8步打印出数值解与真解的值（u(t)=(t^2)/2-t），画出它们的大致图像，并对产生的结果做出解释。 (with four bands classical RK method for initial value problems : from h = 1/8. Every eight-step numerical solution print and in the true value (u (t) = (t ^ 2)/2-t), they generally draw the images, as well as the results of an explanation.)

mpptsimulation 光伏电池mppt最大功率跟踪仿真(Photovoltaic cells mppt maximum power point tracking simulation)

采用16QAM调制方式对一串二进制信息进行基带调制，并分析其功率谱，在AWGN信道上进行传输，并解调，最后对其误比特（BER）性能加以分析。(Using 16QAM modulation methods on a string of binary information in the baseband modulation, and analyze the power spectrum, in the AWGN channel for transmission, and demodulation, the last of its bit error (BER) performance analysis.)

matlab的sift算法实现图像检索 (sift the matlab image retri algorithm)

说明：  基于建筑抗震设计规范的反应谱（地震影响系数曲线）(Response Spectrum based on anti-seismic code for buildings)

MATLAB编程经典教程，中文译本，简单易懂(MATLAB programming classic handbook, Chinese translation, easy to understand)

时频分析原理及应用由很多时频分析小例子构成，很实用。(Time-frequency analysis principle and application of frequency analysis in many small examples, and very practical.)

Código que implementa modulaç ã o PAM com sample-and-hold