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1）设计Butterworth型音频抗混叠滤波器； 2）参数： 下通带频率300Hz；上通带频率3400Hz； 下阻带频率280Hz；上阻带频率3600Hz； 通带最大衰减0.3dB； 阻带最小衰减40dB； 3）采用一低通滤波器和一高通滤波器级联； 4）分别确定LPF和HPF的性能指标； 5）求出两滤波器的系统函数和频率响应，并画出其幅频特性曲线； 6）求整个滤波器的系统函数和频率响应，并画出其幅频特性曲线。(1) the design of Butterworth-type audio anti-aliasing filter 2) parameters: passband frequency of 300Hz on pass-band frequency 3400Hz under the stop-band frequency of 280Hz on stop-band frequency 3600Hz passband maximum attenuation of 0.3dB minimum stopband attenuation of 40dB 3) the use of a low-pass filter and a high-pass filter cascade 4) separately to determine the performance of LPF and HPF target 5) to derive two-filter system function and frequency response, and draw its increase frequency characteristic curve 6) for the entire filter system function and frequency response, and draw its amplitude-frequency characteristic curve.)

线调频小波路径算法的计算程序，实现信号瞬时频率追踪(The calculation program of the linear frequency modulation wavelet path algorithm to realize the tracking of the instantaneous frequency of the signal)

matlab 应用图像处理知识，实现对数字的识别，识别率高(Matlab applies the knowledge of image processing to realize the recognition of the numbers and the high recognition rate)

小波包变换程序 数字信号处理 示例程序 对小波包用于信号处理有帮助(Wavelet packet transform program Modern digital signal processing The sample program For the benefit of the wavelet packet is used for signal processing)

图片效果转换源码例程，程序结合易语言特殊功能支持库，使用易语言画板组件，进行图片的场景转换。(Picture Effects conversion source routines, programs combined with special features easy language support library , using easy language Sketchpad assembly carried pictures of scene transitions .)

AppWizard has created this TCPServer application for you. This application not only demonstrates the basics of using the Microsoft Foundation classes but is also a starting point for writing your application. This file contains a summary of what you will find in each of the files that

基于C#读取遥感影像，img格式类，带有头文件的图像文件读取。在进行简单的处理(Read remote sensing images based on C#, IMG format class, with the head file of image files to read. Doing simple processing)

学生信息管理的框架，还没完善，但整个框架已经有了(A student information management framework)

双PWM变频器双馈风力发电机仿真 对于研究双馈风力发电机控制的同志们来说，以下的资料很有用！！！当然也有几个部分需商榷，我们一起探讨 (DFIG MODEL)

MIMO系统的ZF和MMSE预编码算法-4发4收(ZF and MMSE MIMO system pre-coding algorithm-4 of 4 admission)