mseries

a simple code for plot some kinds of geophysical data (such shot, CMP,... gathers).

时频分析matlab工具箱,这是TFTB的指导使用书籍(Time-Frequency toolbox matlab)

梯度下降法的matlab版本实例,带收敛轨迹图。(the steepest descent algorithm with matlab )

MAGNITUDE AND PHASE RESPONSE OF HIGH AND LOWPASS FILTER

mri brain image segmentation

说明：  伪随机码或称PN码，是扩频通信中不可缺少的一种序列。扩频通信，简单的说来就是通过一组相关性很强的伪随机序列，使原有的信号按照伪随机序列的特性出现。从波形上看，原有信号完全淹没于随机的噪声中，达到隐藏信号和抗干扰的目的。接受方只要有相同的伪随机序列，就可以通过伪随机序列很强的相关性将信号还原出来。而m序列，是扩频系统中最长用的伪随机序列。下面的代码就是基于matlab的生成m序列的代码，通过改变初始多项式的值，就可以生成不同阶数的m序列。(Pseudo-random code or PN code, spread spectrum communication is indispensable to a sequence. Spread spectrum communication, a simple to say that the adoption of a group of highly related to pseudo-random sequence, so that the original signal in accordance with the characteristics of pseudo-random sequence there. From the wave point of view, the original signal completely submerged in the random noise to hide the purpose of signal and interference. As long as the recipient has the same pseudo-random sequence, the pseudo-random sequence can be a strong correlation to restore the signal out. And m sequence spread spectrum system is the longest of the pseudo-random sequence used. The following code is generated based on m sequences of matlab code, by changing the value of the initial polynomial, we can generate a different order of the m sequence.)

说明：  这是对于矩阵分解里面，最新出现的一种新的算法：非负矩阵分解的程序(This is the decomposition of the matrix inside, emerging a new algorithm: the procedure of non-negative matrix factorization)

Sametime software zip

C/A码发生器Matlab程序，测试通过(C/A code generator Matlab procedures)

用matlab实现的彩色车牌分割识别程序,非常实用 附带图片 (Matlab implementation of the color plates with separate identification procedures, with very useful pictures)