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A band pass filter designed

用matlab对duffing方程进行求解，duffing方程是混沌算法的主要分支之一，具有效果较为良好的微弱信号检测功能。(Duffing equation is solved using matlab Duffing equation is one of the main branches of the chaotic algorithm with a the effect weak signal detection function.)

说明：  matlab经典算法的程序，包含了几乎所有matlab的经典算法，很值得推荐的(classical algorithm matlab program, matlab contains almost all the classical algorithm, it is highly recommended)

matlab code for sweep generation

similarity measurement ,to get the eigenvalue

zernike矩算法，matlab语言开发，可用于图像匹配等(zernike moments algorithm, Matlab language can be used for image matching, etc.)

设计的带通滤波器方法 改变参数就行了 里面有几种方法(designed band pass filter change of parameters on a trip inside there are several ways)

C++与matlab混合编程实例，用于实现在VS2010中调用matlab程序(C++ and matlab mixed programming, call matlab program VS2010)

多元高斯声束叠加计算探头发射声场，模拟活塞型探头在液体中的声压分布(Multivariate Gaussian beam superimposed sound field emission calculation probe, probe simulate the sound of the piston pressure distribution in the liquid)

利用MATLAB实现有限元分析中8节点平面结构单元的计算，程序中定义多个参变量及函数，具有极强的通用性(Using MATLAB to achieve 8-node finite element analysis of plane structural elements of the calculation, the program defined in the function of many variables and parameters, is highly versatile)