ex4_4

must view while leaving any place from a company

含有时滞的奇异切换系统的稳定性分析判据,该判据是个时滞无关的判据，具有更小的保守性(Delay-independent criteria for exponential admissibility of switched descriptor delayed systems)

MATLAB三维绘制图，可以实现三维曲面图的旋转动画；用于文献汇报等。(MATLAB three-dimensional sketch, animation can rotate a three-dimensional surface plot for reports and other literature.)

Calculates the result of Euler s Phi funtion for any natural number less than 10^18.

说明：  数字图像修复算法的评价标准也是从两个方面进行评价的，一个是修 复算法的效率，一个是修复后图像质量。修复算法的效率主要就是看修复 图像所用的时间，可以用时间就行量化。而图像质量很难从量上唯一的进 行评价，目前图像修复质量还没有统一的评价标准，从实际应用出发，修 复后图像质量的好坏大多数是从以下两个方面就行评价，修复后图像给人 主观上的“满意度”和客观上图像的cnr、enl、epi、psnr、snr来评判。(The evaluation criteria of digital image restoration algorithms are also evaluated from two aspects, one is repair. One of the efficiency of complex algorithm is the image quality after restoration. The efficiency of the repair algorithm depends mainly on the repair. The time spent on the image can be quantified in terms of time. But image quality is difficult to improve quantitatively only. At present, there is no uniform evaluation criterion for image restoration quality. Starting from practical application, repair The quality of restored images is mostly evaluated from the following two aspects, and the restored images are given to people. Subjective "satisfaction" and objective image cnr, enl, epi, psnr, SNR to judge.)

说明：  G。729算法MATLAB解码实现，用于对音频信号的仿真(G729decoder)

different types of signals matlab code

4-ary LDPC matlab code

作出i.i.d. Rayleigh信道上SC合并（L=2,3,5）的输出信噪比PDF曲线，并求出曲线最大值的位置。(SC combined to iid Rayleigh channel (L = 2,3,5) of the output SNR PDF curve and calculated curve of the maximum position.)

Matlab 代码，用遗传算法解决01背包问题(Matlab code, using genetic algorithms to solve knapsack problem 01)