plane-61-bar-truss

das filter: baswed on research by das in filtering

说明：  求反求参数（无约束非线性优化方法）的matlab实现 无约束非线性优化算法-Powell法优化子程序 matlab广义最小二乘算法程序(Reverse order parameter (unconstrained nonlinear optimization method) to achieve the matlab unconstrained nonlinear optimization algorithm-Powell method to optimize the generalized least-squares algorithm matlab subroutine procedure)

用MATLAB对图像进行基本的处理，包括读取、均衡化、不同方法显示、数据类型对显示方式的影响等基本操作，非常适合初学者(Using MATLAB to perform basic image processing, including reading, equalization, different methods of display, data types on the display of such basic operations, is suitable for beginners)

《精通Matlab6.5版》张志勇等编著，书本api相关的文件("proficient Matalab 6.5 version of the" Written by Zhang Zhiyong, books api relevant documents)

采样定理的验证，即采样信号的频率大于等于原信号频率的两倍时才能准确的恢复原信号(Verification sampling theorem, the sampling frequency of the signal frequency is greater than or equal to twice the original signal in order to accurately restore the original signal)

SVG无功发生器的matlab仿真，采用PI解耦控制。基于matlab 2014a编写。(SVG simulation of MATLAB reactive power generator, using PI decoupling control. Based on 2014a matlab.)

说明：  UUV 6自由度模型代码，仿真实例。。。。(Verification of a six-degree of freedom simulation model for REMUS autonomous underwater vehicles.)

计算两个声音信号的延时.两个信号不必完全相同，但是要非常类似(Two sound signals calculated delay signal having two identical, but very similar to)

使用imcorr软件得到的test.out文件，用此代码能够实现梯度场的矢量绘图(Use test.out file imcorr software was used to achieve this code vector drawing gradient field)

稀疏阵的方向图仿真，给出了不同条件下的稀疏阵列的方向图(This is the simulate about sparse array ,different conditions have been taken into account )