HW_5

分数阶Fourier变换，直接根据公式实现，没有用快速算法(Fractional Fourier transform, directly under the formula to achieve, not with the fast algorithm)

different types of signals matlab code

此程序以美国黄石国家公园为例，构造尽可能贴近实际的仿真环境，从而通过仿真得到野火发生频率与野火规模之间的数学模型。这是一个经典的幂率模型，稍作改造好即可模拟“28原则”、“网站点击率”等幂率相关问题。(This procedure to Yellowstone National Park as an example, the actual construction simulation environment as close as possible to the simulated wildfire through the frequency and size of wildfires between the mathematical model. This is a classic power law model, slightly modified to better simulate " 28 principles" , " web site click-through rate" and other power-law related issues.)

铁蝶式期权蝶式价差策略:把价差策略分解成单个期权的组合并分析期初成本和期末收益.(Iron Butterfly spread options strategy: to spread down into a combination of a single policy options and cost analysis at the beginning and end of the income)

求PI的值，根据莱布尼茨公式求PI，PI=4*（1-1/3+1/5-1/7+1/9-1/11+……(PI uated, find PI, PI= 4* (1-1/3+1/5-1/7+1/9-1/11+ Leibniz formula based on ......)

passive filter simulink file to reduce harmonics

MATLAB实现群时延，小数时延，以及整数时延的方法，已经过仿真(MATLAB group delay, the fractional time delay, and the method of integer delay has been through the simulation)

基于短时能量的基音短点检测，有基于短时能量的计算方法、短时过零率，有matlab程序，同事对应word讲解，算法原理图，和算法详细介绍。(Short pitch detection based on short-term energy, based on the calculation method of the short-time energy, short-time zero-crossing rate, matlab program, colleagues corresponding word on the schematic diagram of the algorithm, and the algorithm described in detail.)

Matlab implementation of the schroeder’s reverberator algorithm for audio filtering

利用matlab程序，以及小波函数，实现两个图像的小波融合(Using matlab procedures, and wavelet function, wavelet fusion of the two images)