BerMass

有限差分法的Matlab程序（椭圆型方程）(finite difference method of Matlab (elliptic equation))

denoise In BayesShrink[5] we determine the threshold for each subband assuming a Generalized Gaussian Distribution(GGD) . The GGD is given by GG¾ X ¯ (x) = C(¾ X ¯ )exp¡ [® (¾ X ¯ )jxj]¯ (6) ¡ 1 < x < 1 ¯ > 0, where ® (¾ X ¯ ) = ¾ ¡ 1 X [ ¡ (3=¯ ) ¡ (1=¯ ) ]1=2 and C(¾ X ¯ ) = ¯ ¢ ® (¾ X ¯ ) 2¡ ( 1 ¯ ) and ¡ (t) = R1 0 e¡ uut¡ 1du. The parameter ¾ X is the standard deviation and ¯ is the shape parameter It has been observed[5] that with a shape parameter ¯ ranging from 0.5 to 1, we can describe the the distribution of coefficients in a subband for a large set of natural images.Assuming such a distribution for the wavelet coefficients, we empirically estimate ¯ and ¾ X for each subband and try to find the threshold T which minimizes the Bayesian Risk, i.e, the expected value of the mean square error.

Image water marking using DWT with 3-levl decomposition

ADHOC networks introduced a AODV protocol comparison article, including source code and performance analysis,

music算法进行雷达信号方向角的谱估计，比较详细。有仿真图形。(music algorithm of radar signal spectrum DOA estimates, in more detail. There are simulation graphics.)

说明：  matlab实现视频中动态目标跟踪，效果还不错，以前试过里边的DEMO。(matlab dynamic target tracking in video, the results were good, tried before inside the DEMO.)

这个matlab程序实现了将一个数组变量写入一个txt文件的过程。每个数组元素占据一行。(This file writes a array into a .txt file. Each member in array occupies a line in .txt file.)

很牛的粒子群算法，里面由三个程序组成，清晰易懂(PSO is cattle, which consists of three program composed, lucid)

说明：  实现对频谱泄露造成的频率谱分析误差，此程序基于MATLAB软件 (To realize the frequency spectrum leakage caused by spectral analysis of error, this program based on MATLAB software)

ofdm系统的matlanb仿真，包含星座图，加窗，误码率等，希望对大家有帮助(ofdm system matlanb simulation, including the constellation, adding windows, error rate, we want to help)