Lax_wendroff_shock_turbo

語音信號是基於時間軸上的一維數位信號，在這裏主要是對語音信號進行頻域上的分析。在信號分析中，頻域往往包含了更多的資訊。對於頻域來說，大概有8種波形可以讓我們分析：矩形方波，鋸齒波，梯形波，臨界阻尼指數脈衝波形，三角波，餘旋波，余旋平方波，高斯波。對於各種波形，我們都可以用一種方法來分析，就是傅立葉變換：將時域的波形轉化到頻域來分析。(Voice signal is based on the timeline of one-dimensional digital signal, where mainly the speech signal in frequency domain analysis. In signal analysis, frequency domain often contains more information. For the frequency domain for about 8 allows us to analyze waveforms: rectangular square wave, sawtooth, trapezoidal wave, the critical damping index pulse, triangle wave, I spin wave, I spin square wave, Gaussian. For all waveforms, we can analyze in a way that is Fourier transform: the transformation of time domain waveform into the frequency domain to analyze)

在MATLAB中进行编程的实现定位误差分析的一段小程序(A small program of analysis in MATLAB programming to achieve positioning error)

说明：  在MATLAB上编程 用R-K法解一次导数方程 有详细的注释(Programming in MATLAB with the RK Law on the first derivative of equation solution with detailed notes)

PCM编解码（Pulse-code modulation），即脉冲编码调制）(PCM codec (Pulse-code modulation), Pulse Code Modulation))

matlab教程-欢迎大家下载， MATLAB通信工具箱中的系统仿真(Matlab Guide-Welcome downloaded MATLAB toolbox of communications system simulation)

关于跳频信号的时频分析过程，介绍的比较详细(About the frequency hopping signal analysis process, described in more detail)

Tools,tutorials, and exaples for using matlab simulink

说明：  内含8个数学建模的实验报告：线性规划、插值、拟合、非线性规划、蒙特卡洛方法、微分方程、无约束优化、回归分析(Mathematical modeling includes 8 Experiment Report: linear programming, interpolation, fitting, linear programming, Monte Carlo method, differential equations, unconstrained optimization, regression analysis)

用共轭梯度算法——PRP算法求解无约束最优化问题(Conjugate gradient algorithm- PRP algorithm for solving unconstrained optimization problems)

simulation the converter DC to DC single phase command with process of implosion