grd

CDMA通信系统仿真程序，可以选择不同的PN码扩频调制，有信道编码，信道加入高斯白噪声，仿真不同的检测器的的性能(CDMA communication system simulation, simulation of different detectors performance)

Matlab 图像检索源代码，灰度直方图方法，简单检索方法(Matlab image search)

用matlab仿真ad hoc 网络中网络性能(Matlab simulation with the network performance in ad hoc networks)

2003年Park关于超分辨图像重建的综述性文献，文中回顾了时域与频域的各种重建方法，并进行了比较。比较全面(2003 Park on the super-resolution image reconstruction is summarized in literature, the paper recalled the time domain and frequency domain of various reconstruction methods and compared. More comprehensive)

LMS自适应滤波的演示程序 LMS自适应滤波的演示程序(LMS adaptive filtering LMS adaptive filtering demo demo)

二维声波传播过程模拟，采用一定合适的吸收边界条件(2D acoustic propagation simulation with PML boundary)

Matlab基本知识，matlab学习入门,希望对大家有用。(this article of Matlab is useful to you .good good study, day day up .Hope you have a good day .)

利用Matlab软件工具，对简单的植被形态进行模拟，模拟结果生动逼真。首先，迭代产生一系列字符串；其次，根据将L系统与图形联系起来，采用龟形的概念赋予每个字符特定的图形含义；最后，读取字符并画图，根据读取到的字符通过Matlab实现相应的操作。(According to L system and iterated algorithm, shape of trees were simulated with matlab functions and programs and the fractal trees’ configurations were natural and living. First, we use iteration to produce a series of string. Then, connecting the L system with graphs, we use the theory of turtles to give each character a specific meaning. Finally, read the string and draw pictures with the matlab. )

　　车辆监测用测速雷达是依据多普勒效应原理实现的。由雷达发出一束微波，遇被测目标（车辆）时微波被反射回来，再由雷达接收反射波。如果目标相对于雷达有距离上的运动，反射波的频率将与发射频率发生差异，而这种差异的大小正比于目标与雷达的相对运动速度。于是，雷达通过检测反射波频率和发射波频率的差，就可以计算出被测车辆的移动速度。本次课程设计是利用离散付里叶变换进行频谱分析，设计数字滤波器组，并对滤波器组加窗降低副瓣，通过频域方法测量速度。(Vehicle monitoring using radar gun is based on the realization of the principle of the Doppler effect. By the radar emits a microwave, in case the measured target (vehicle) when the microwave is reflected back, and then by receiving the reflected radar waves. If the target relative to the radar on a distance of motion, the frequency of the reflected wave and the emission frequency of the difference, and this difference is proportional to the relative target and radar velocity. Thus, by detecting the reflected radar wave frequency and the frequency difference between the transmitted wave, we can calculate the movement speed of the vehicle under test. This course is designed to take advantage of the discrete Fourier transform spectral analysis, digital filter design group, and filter bank windowed lower sidelobes by frequency domain methods to measure speed.)

软阈值去噪程序。噪声为高斯白噪声，采用软阈值去噪算法可保证信号的能量。(noise)