numerical-recognition

QPSK是通信信道中一种很好的调制方式，对于其性能参数进行了仿真，信道以及噪声选择可以根据代码自由改动。对学习无线编码很有用处。(QPSK is a good communication channel modulation, the performance parameters for the simulation, channel and noise free choice can be altered according to the code. Learning wireless encoding useful.)

这是主成分分析的matlab源程序，用于故障诊断的特征提前，请大家使用(This is original program of matlab，and it can be used for fault diagnosis.Welcome to used it.)

这个是霍夫曼编码的问题，要求输入只含有ABCD的四句话，且每句8个字符的长度，然后求出四个字符每个的概率，然后当成权值计算霍夫曼编码，我的这个程序已经实现了输入、概率统计、计算出霍夫曼编码存在了bian[]这个数组中(hoffuman decoding)

介绍了如何在matlab中调用C还是进行快速的运算，包括接口格式，实例等。(Introduce how to call matlab in C or rapid computing, including the interface format, examples of such.)

阵列存在幅相误差条件下的DOA估计算法仿真(There is an array amplitude and phase errors of the DOA estimation algorithm under the conditions of simulation)

这个程序是用改进平方根法对线性方程组进行求解，要求系数矩阵必须是对称正定矩阵(This procedure is used to improve the square root method to solve linear equations, requiring the coefficient matrix must be symmetric positive definite matrix)

In the previous chapters we have encountered a number of ways to process digital images, to recognize objects therein and to

estmation of doa using music alg

image stegno basic code matlab..

This is matlab simulation source code for ASP digital communication system.