xiaobobianhuan

线性规划算法，来自于《精通MATLAB最优化计算》(linear program )

交错网格声波模拟，可展示波场快照，反映波传播的过程。(Staggered grid acoustic simulations, can show a snapshot of the wave field, reflecting the wave propagation process.)

本程序已被本人整理到WORD文档中，编程语言为MATLAB，本文设计的滤波器采用傅里叶级数展开法。模拟的杂波的功率谱密度采用BVURG法，概率密度函数的估计采用直方图估计法，设计参数皆在文档中表明。此程序已经验证是正确可执行的，并能生成图形，值得下载！(This program has been organized into WORD document I, the programming language MATLAB, the filter designed in this paper Fourier series expansion method. Simulated clutter power spectral density using BVURG method, the probability density function is estimated using histogram estimation methods, design parameters are indicated in the document. This procedure has been verified is correct executable, and can generate the graph, it is worth to download!)

说明：  此代码展示了Euler计算方法与差分方法(This code demonstrates Euler difference method and calculation method)

本文件算出闭合曲线图形的面积是根据像素点来的(Closed curves calculated in this document is based on the size of graphics to the pixel)

绘制心形图案。基于matlab语言绘制心形图案，最终生成6幅图案。(Draw a heart-shaped pattern. 6 based the matlab language plotted heart-shaped pattern, the resulting pattern.)

用以读写带卷头sgy文件的matlab程序,使用简单(a program that reads the syg file with vloume, which is easy to use)

fit_maxwell_pdf - Non Linear Least Squares fit of the maxwellian distribution. given the samples of the histogram of the samples, finds the distribution parameter that fits the histogram samples. fits data to the probability of the form: p(r) = sqrt(2/pi)*(a^(-3/2))*(r^2)*exp(-(r^2)/(2*a)) with parameter: a format: result = fit_maxwell_pdf( x,y,W,hAx ) input: y - vector, samples of the histogram to be fitted x - vector, position of the samples of the histogram (i.e. y = f(x,a)) W - matrix or scalar, a square weighting matrix of the size NxN where N = length(y), or 0 to indicate no weighting is needed. hAx - handle of an axis, on which the fitted distribution is plotted if h is given empty, a figure is created. output: result - structure with the fields a - fitted parameter VAR - variance of the estimation type- weighted LS or not weighted LS iter- number of iteration for the solution

QAM16在非线性功放模型TWTA的仿真，对需要认识功放特性的同学有帮助。(TWTA nonlinear amplifier model QAM16 the simulation, students need to realize that help power amplifier characteristics.)

串口通讯基础 dSPACE中有串口的板卡类型 DS4201S串口板介绍 DS4201S串口硬件和软件 dSPACE串口使用常见问题 (Serial communications infrastructure dSPACE board types in a serial port serial board introduced DS4201S DS4201S serial port using the dSPACE hardware and software FAQ)