zibian

A cyclic redundancy check (CRC) is an error-detecting code designed to detect accidental changes to raw computer data, and is commonly used in digital networks and storage devices such as hard disk drives. Blocks of data entering these systems get a short check value attached, derived from the remainder of a polynomial division of their contents on retrieval the calculation is repeated, and corrective action can be taken against presumed data corruption if the check values do not match.

Implementation Of LRI Learning Algorithm in Cellular Automata Matlab Code

substitution cipher is the method of encoding in which unit of plain text are replaced by cipher text. Monoalphabetic cipher uses a fixed message over entire message.A monoalphabetic cipher uses fixed substitution over the entire message.The monoalphabetic substitution takes a letter of an alphabet and substitutes it with another letter, this way a ciphertext is generated. The way of converting is fixed. A character of the plaintext will be replaced by the same ciphertext character, during the entire ciphertext. There is no additional key. The only way of security is to keep the substitution-table secret. A popular example for the monoalphabetic substitution is the caesar cipher.

采用熵值法求特征分量的权重，一般可用于特征选择与特征提取(Entroy algorithm ia used to be calculate the weight of each element,and is helpful in the selection and extraction of features)

一种基于多文档得图像合并技术，经典的灰度共生矩阵纹理计算方法，esprit算法对有干扰的信号频率进行估计。( Based on multi-document image obtained combining technique, Classic GLCM texture calculation method, esprit algorithm signal frequency interference can be assesse.)

在瑞利衰落和高斯白噪声下dpsk调制对于不同信噪比的误码率(bit error rate of the dpsk modulation in Rayleigh fading and Gaussian white noise for different signal to noise ratio)

simple code for inserting the pilots

simulink仿真学习的必备教程，里面有许多例题，学完你就是高手(simulink simulation study of the essential curriculum, there are many examples of school after you are a master!)

图像拼接Matlab程序，基于块匹配的全景图像拼接(Image mosaic Matlab program, based on block matching panoramic image stitching)

本程序是用COstas环跟踪信号的处理过程，具有较好的跟踪性能，(This procedure is used Costas loop tracking signal processing, has a good tracking performance,)