改进DPM的傅里叶变换算法

以实例为背景学习基于MFC的WINDOWS应用程序设计，编写一个模拟时钟程序，此程序在屏幕左边有一个指针式钟面，右方有两个矩形框，上面以数字方式显示日期和时间，该时间应与指针显示的时间一致，下方的矩形框作为秒表。用菜单选项或按钮设置时间和秒表。时间不必与机器系统时间相同，可任意设置。(Background-instance learning WINDOWS MFC-based application design, the preparation of an analog clock program, this program has a pointer on the screen on the left clock face, on the right there are two rectangular box, above digitally display the date and time, which should be consistent with the pointer display time, and the lower rectangular box as a stopwatch. With a menu option or button to set the time and stopwatch. Time Machine does not have the same system time can be set arbitrarily.)

信道容量编码，C语言实现，照着程序一步一步做会找到你需要的(Channel capacity coding, C language, according to the program will find step by step what you need to do)

基4fft和ifft源码，测试结果和matlab一致(source code of fft&ifft based on 4.result is identical with that of matlab)

说明：  智能小车的控制代码程序，做课设的时候用过(Control Code Program of Intelligent Car)

gfhhf tytr rtytry try try tr yrty rt

打开软件需要下载松下fp7专用软件工具，具体下载可点击https://device.panasonic.cn/ac/c/fasys/plc/software/fpwingr7/index.jsp，主要功能为通过程序实现plc通信

多描述编码SVC的例子，按4个信道进行4层叠加，全部叠加分辨率最高最清晰，可以作为视频多描述编码的学习和使用，也可修改后商业应用。

C级

改程序适应于电力系统短路电流计算，生成节点导纳矩阵和阻抗矩阵。(Change program suitable for power system short-circuit current calculation, to generate the node admittance matrix and the impedance matrix.)

：滤波 fs=400 采样频率,必须大于两倍基带信号最高频率 ts=1/fs 采样时间间隔 T=5 时间窗大小 t=0:ts:T (hf1=zeros(1,N) hf1(f<=B1&f>=-B1)=1 y1=hf1.*fftshift(y) figure subplot(211) plot(f,abs(fftshift(y))/N,f,hf1, r-- ) axis([-fs/2,fs/2,0,1.2]) title( 原信号频谱 ) xlabel( f /Hz ) subplot(212) plot(f,abs(y1)/N) title( 低通滤波，截止频率90Hz ) xlabel( f /Hz ))