codematlab-(1)-(1)

介绍了数字通信中的QPSK调制解调的原理，通过用Matlab编写脚本程序对QPSK通信系统的发射和接收过程的具体实现进行模拟仿真，绘出信号在理想信道和加噪信道中模拟传输时的时域图，并对各模块进行了频谱分析，所得到的结果与理论基本相符，对于理解QPSK系统的性能并在系统的实际应用上作进一步的设计，提供了有效的参考依据(The introduction was done with the principle of the QPSK modulation and demodulation in digital communications, a script was written by using Matlab program to carry out a simulation of the QPSK communication system ,which contains the concrete realization of transmit and receive process. The time-domain diagram is drew separately when the signal transmits in the ideal channel and in the channel with noise, spectral analysis of each module is also done, the results obtained with theoretical results in the main, which provides an effective frame of reference for understanding the performance of QPSK systems, and the practical application in the system to make further designed.)

内容包括离散时间信号简介、随机变量和随机过程的基本知识、维纳滤波器的基本知识、误差性能曲面的性质、牛顿法、最陡下降法、LMS算法及各种改进算法、最小二乘算法等的介绍。(Include discrete-time signal profiles, random variables and a basic knowledge of stochastic processes, Wiener filter basic knowledge of the nature of the error performance surface, Newton method, steepest descent method, LMS algorithm and a variety of improved algorithms, least-squares algorithm such as introduction.)

maximum ratio combining

matlab 入门教程，包含讲义和相关实例，非常实用，对于初学者(matlab tutorial, including handouts and relevant examples, very useful for beginners)

3deta原则剔除异常数据点的经典matlab程序，本人已测试成功，下载后可以直接测试，效率较高(It s a very important programme for eliminating abnormol data.)

能够读取二维码，经过改造可以为己所用~~~~~~(The ability to read two-dimensional code, revamped for their own use ~ ~ ~ ~ ~ ~)

说明：  matlab code image proccessing codesq2

Generate BASK Signals

here is the matlab plot of the few equation in mupad.this is the matlab tool which is used for 2d - 3d plots. even it is very useful solving equation by simple commands like solve.

SVM源程序小样本分析 模式识别 用于SVM的初学者。 (SVM source of small samples for analysis SVM pattern recognition for beginners.)