compress2D

a program which implements a finite difference algorithm for a predator-prey system with spatial variation in 2D

极大似然函数的matlab程序，说明极值分布比最小二乘的优越性(Maximum likelihood function of the matlab program)

改程序可以对信号进行emd分解，直接得到imf和hilbert谱(Change the program can signal emd decomposition directly from the imf and the hilbert spectrum)

生成一个采样频率2000，由50Hz、120Hz、200Hz正弦信号以及噪声信号组成的数字信号，滤掉150Hz>f>100Hz的频率，计算并显示滤波前后的原始数据波形以及功率谱密度。(A sampling frequency of 2000, a digital signal composed of 50Hz, 120Hz, 200Hz sine and noise signals, is generated to filter out the frequency of 150Hz>f>100Hz and to calculate and display the original data waveforms and the power spectral density before and after the filtering.)

kalman filter toolbox for matlab...

说明：  此程序描述了QPSK调制解调的过程，包括成形与匹配滤波，最后给出解调误码率。(This program describes the process of QPSK modulation and demodulation, including shaping and matching filtering, and finally gives the demodulation error rate.)

主要介绍matlab中simulink的使用情况，里面图标的介绍以及如何画出模块图(Matlab simulink introduced in the usage of the icons inside, and how to draw block diagram)

合成孔径雷达（SAR）的点目标回波仿真——rd算法(Synthetic aperture radar (SAR) point target echo simulation- rd algorithm)

文字检测MATLAB程序 可以运行( word detection )

this is function used for local histo gram equalization. you have to pass the window size