IOCommon

calculate throughput of a slotted aloha network with an SNR requirement

实现图像的DCT高通、低通滤波器并与傅里叶变换做比较.有图可见，经DCT低通滤波后，图像变得很模糊。因为DCT是FFT取其实部，能量减少，因此图像变得很模糊，没有经FFT滤波后的效果好。 经DCT高通滤波后的图像： 经DCT高通滤波后，图像的低频部分被滤除掉，图像变黑，只有边缘的痕迹可见。 (The DCT of image high-pass, low pass filter and compared with the Fourier transform.)

simulation of communication systems and software defined radio from the book chapter 2

估计功率谱密度的平滑周期图是一种计算简单的经典方法，其主要特点是与任何模型参数无关，是一种非参数化的方法。(Estimated power spectral density is a smooth periodogram simple classical calculation method, the main feature is not related to any model parameter, is a non-parametric methods.)

一个简易计算器界面,采用matlab语言编写,共享资源(a simple calculator interface using Matlab language, sharing resources)

Detection of QRS wave of more detailed procedures, including the starting point of QRS wave, peak detection.

针对三阶包氏混沌系统，刻画系统李雅普诺夫指数谱。改程序采用雅可比矩阵法，运算速度快捷。Bao chaotic system Lyapunov exponent spectrum(system, describe the system of Lee Yap Andrianof spectrum index. Change the program using the Jacobi matrix method, fast calculation speed.)

提供了三个NLMS算法程序，结果良好，供大家参考(provide 3 NLMS algorithm program with good results. Please refer to it.)

Matlab交通仿真程序用于仿真交通红绿灯的设计！(Matlab traffic simulation program for the simulation of traffic lights design!)

在快速傅里叶变换大的基础上以对信号进行短时分析，能画出三维瀑布图。(In the fast Fourier transform big on the basis of the signal is short analysis, can draw 3 d waterfall diagram )