噪声建模

PSNR峰值信噪比在两个图像上的比较。此程序为一函数。(PSNR comparison of the two images)

This is the generation code for direct spread spectrum using pseudo-random noises. it shows how to generate it and also is implemented bit error ratio and the checking of autocorrelation.

image restoration -TwIST_v1

用遗传算法解决旅行商问题，是比较简单的一个程序，但可以运行。(a procedure about GA applied in solving TSP problem)

The purpose of this document is to help d ebutants in Matlab by introducing the most common commands.

用matlab对语音信号进行分析和处理，并提供matlab源程序和系统界面(Speech signal analysis and processing using matlab matlab source code and system interface)

matlab用来解一般线性或者非线性方程的方法及标准应用公式。(matlab used to solve a general linear or nonlinear equations and application of formulas.)

作为一个有吸引力的技术， 减轻多径干扰的正交频 分复用（OFDM）已经被广泛应用 在各种广播系统，诸如数字 视频广播（DVB）系统。尽管它的竞争力 属性，OFDM信号的特点是非常高的 峰值对平均功率比（PAPR）的水平。( As an attractive technique in mitigating the multipath interference, Orthogonal Frequency Division Multiplexing (OFDM) has been widely applied in various broadcasting systems such as, the Digital Video Broadcasting (DVB) systems. Despite its competitive attributes, OFDM signals are characterized by very high Peak-to-Average Power Ratio (PAPR) levels.)

matlab柱状图填充图案 可以实现黑白的填充(apply hatch Matlab histogram fills the pattern Black and white can be achieved by filling)

说明：  文件包括非线性方程数值计算时常用的lyapunov程序，以duffing方程为例，进行程序计算，可以稍微修改，计算其他方程。(The file includes the Lyapunov program commonly used in the numerical calculation of nonlinear equations. Taking Duffing equation as an example, the program can be modified slightly to calculate other equations.)