mather

dct based visible watermarking algorithm

通信系统中的OQPSK，并且与QPSK相比较。matlab实现(Communication Systems OQPSK, and compared with QPSK. matlab achieve)

UEL beam单元，作者不详（网上下载，若作者有异议可通知本人删除）(UEL beam element)

计算机控制工程中数字PID用ISTE方法整定matlab的实现算法(Computer control works in digital tuning PID ISTE method matlab realization algorithm)

运用前推回推法进行配电网潮流计算。附有33母线系统数据，以供检验。程序没有考虑电容器、分布式电源，以及弱环网的影响。(Before using push back push power flow calculation method. With 33 bus system data for testing. The program does not consider the capacitor, distributed power, and the impact of the weak ring network.)

Basic signal:Representation of Basic Signals (a) Unit Impulse Signal (b) Unit-step. Signal ..... computed using MATLAB program and the resultant output is plotted

利用MATLAB 计算调制传递函数，在已知波前时，求解调制传递函数。( Purpose: Calculate and Plot MTF of the Wave Aberration Function This file calculates and plots the MTF of the Wave Aberration function specified by: jmax = highest mode in Wave Aberration Expansion Wrmsj = rms Wave Aberration coefficients of modes 0 to jmax d = pupil diameter in mm lambda = wavelength in nm )

语音端点检测，是语音压缩时提取特征参数的一个必要的过程，这个程序主要是对这个过程的一个小的程序。希望对学语音的有帮助(Extreme point detecting is a primily process to get the eigenparameter when you compressing the speech.This program is a small one,it will help for the learner.)

说明：  遗传算法，MATLAB例程，交叉适应繁殖变异，结构清晰(Genetic algorithm, MATLAB routine, cross-breeding to adapt to variations in the structure of clear)

使用matlab命令将10进制自然数转换为16进制的小程序(Use the Matlab command decimal natural number converted to hexadecimal applet)