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程序的主要功能是做了一定范围的信噪比下，对每个信噪比：随机信号QPSK调制； 根据Alamouti方案的矩阵进行编码；发送信号经过瑞利信道和加入高斯白噪声； 接收信号采用最大比合并的方法；最后对合并信号进行最大似然判决并求误符号率。 结果表明10^-3对应大约12->13dB(Procedure main function is to do a certain range of SNR for each signal to noise ratio: random signal QPSK modulation program in accordance with Alamouti coding matrix send signals through Rayleigh channel and adding Gaussian white noise received signal using maximal-ratio combining method Finally the combined signal and the maximum likelihood decision for symbol error rate. The results showed that about 10 ^-3 corresponds to 12-> 13dB)

本程序为实现LDPC编码和STBC，STBC采用2发2收天线，希望对大家有一定的帮助。(implement an STBC encoding/decoding scheme, LDPC coding before modulation and STBC next to decode them. )

The Robotics Toolbox provides many functions that are useful in robotics such as kinematics, dynamics, and trajectory generation. The Toolbox is useful for simulation as well as analyzing results from experiments with real robots. (The Robotics Toolbox provides many functions that are useful in robotics such as kinematics, dynamics, and trajectory generation. The Toolbox is useful for simulation as well as analyzing results from experiments with real robots.)

说明：  一种基于角点信息和透视变换的图像镶嵌源代码(A corner-based information and perspective transformation of the image mosaic source code)

说明：  一种加核的PCA算法，比PCA算法识别率高很多，所加的核可以用于其他算法。(An increase in the PCA algorithm for nuclear than the PCA algorithm is much higher recognition rate, the increase of other algorithms can be used for nuclear.)

modulation and deodulation curves for different modulation schemes

非线性光纤光学配套的一些实例matlab演示文件，可以更深刻的了解书本内容。美国，Govind P. Agrawal (Nonlinear fiber optics supporting some of the examples of matlab demo files, you can gain a deeper understanding of book content. The United States, Govind P. Agrawal)

说明：  可以实现人脸识别，matlab程序的源代码，国外资源，基于PCA算法 (Face recognition can be achieved, matlab program)

说明：  基于matlab的编程实现神经网络BP算法实现数据的分类(matlab bp)

it is a matlab code about sfc that use in matlab.it is one of most important problems in numerical calculation