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DES function for the encryption of DES,use matlab to make it possible,first input in the function is plaintext ,second one is key,and last is to choose encrypt or decrypt

利用matlab对图像进行读入与处理（运用在仿真领域）(Use matlab to read the image and processing (used in the field of simulation))

改良的离散余弦变换MDCT,可用于MP3编解码过程中的MDCT使用。(modifed discrete cosine transform)

kaiser窗函数的用法，这是一个资料上的，经过验证了，希望帮得到你。(usage of the kaiser window function, which is an information, after the verification, and hope to help get you.)

kpib.m contains code for GPIB and serial port communication for a number of scientific instruments, organized so that a single common command syntax can operate them all. For example, the command: r = kpib(INSTRUMENT,GPIB, read ) will return the voltage and current reading from a number of different power supplies. The goal is to be able to write matlab code that can accommodate changing instruments and experimental setups with minimum hassle. If INSTRUMENT and GPIB are defined as constants at the beginning of your code, then they can be changed to accommodate new equipment, and the rest of the code is unchanged. In addition, kpib can test whether an instrument exists at an address and read and write arbitrary strings to instruments for testing.

说明：  在原始信号加入白噪声，通过卡尔曼滤波去除噪声，恢复原始信号。(In the original signal to join the white noise through the kalman filter remove the noise, restore the original signal. )

说明：  基于负熵的盲源分离算法，可以用于语音的盲分离，提高语音信号质量。本代码中，对原始信号分别为正弦波，方波，和随机信号，通过高斯信道的混合矩阵，获得接收信号，并通过基于负熵的盲源分离算法分理处原始信号。PS：Matlab版本为2018Ra(The blind source separation algorithm based on negative entropy can be used for speech blind separation and improve the quality of speech signal. In this code, for the original signal, sine wave, square wave and random signal, the received signal is obtained through the mixture matrix of the Gauss channel, and the original signal is processed by the blind source separation algorithm based on negative entropy. PS: MATLAB Version 2018Ra)

利用matlab设计滤波器，有原理说明及其matlab的代码实现(A filter was designed using matlab, there are principles of note and its matlab code to achieve the)

蚁群算法的另一种实现形式，通过全局的搜索，避免陷入局部解的改进程序(Another ant colony algorithm to achieve the form of global search through, to avoid falling into local solutions to improve procedures)

一本很好的讲matlab应用的书籍，并且非常适合于初学者，能够帮助初学者快速入门。(a good book to teach you the application of matlab.It s suitable for the beginners. And it will help you a lot.)