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a band pass signal through an ideal BPF x(t) =[1+cos(pi*t/T)]*cos(2pi*fc*t)

Design a linear phase minimum order FIR Band Stop filter to stop the frequency band 0.45π to 0.55π with atleast 60dB attenuation at the edges. Further -3dB frequencies are required to be at 0.3π and 0.7π. 1. Plot the frequency response of the psuedo magnitude function using (a)rectangular window, (b)Hann window and (c) Hamming window. 2. Plot the frequency response for Rectangular and Hamming window for a length of 1024 to demonstrate the fact that the increase in the length, doesn t reduce undershoot and overshoot in Rectangular window.

在傅立叶变换光学中夫琅和费衍射场的强度分布就等于屏函数的功率谱。因此我们可以直接将光屏进行傅立叶变换，再处理得到衍射图样。(In the Fourier transform optics, Fraunhofer diffraction field intensity distribution is equivalent to the power spectrum display function. Therefore, we can directly Guangping Fourier transform, and then to handle any diffraction pattern.)

网上的Kalman滤波数据融合示例，此处的特点是添加了详细的注释，并且为了更容易理解和顾名思义，对部份变量和函数名作了修改，使得非常易懂。(An example of Kalman filtering data fusion on the Internet! Detailed annotations are added and some variables and function names are modified to make them easy to understand.)

牧场管理代码 应用于姜启源的数学建模(第三版)课后大作业(The Answer of the Assignment in the Book <MathModel>(Author:Jiang Qiyuan))

这是一个有关于对信号处理的matlab的程序代码，里面详细描述了关于信号的处理(This is a signal processing matlab on the program code, which describes in detail the signal processing on)

说明：  基于dds的函数发生器和基于matlab的扫雷游戏(Dds-based function generator and the mine-based game matlab)

The proportional–integral–derivative controller consists of three simple actions, i.e. P, I, and D actions.

this code is about one of the filtering algorithms in image processing.

Engineering anna university electronics department Engineering anna university electronics department