numerical-integrel-methods

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.)

说明：  this module gives a basic image compression example

matlab函数,运算符速查，doc格式(matlab function Quick Fact)

PermanentMagnetSynchronousMachine,model and simulaltion

RLS system identification + regularization

articl when the wind energy represented

image compression algorithm

正交拉丁方算法用于图像加解密的示例演示程序,带GUI显示界面,请在Matlab6.5以上版本上运行.(Orthogonal Latin squares algorithm for image encryption and decryption of the sample demo program with GUI display interface, please run Matlab6.5 above.)

IEEE39节点电力系统标准参数和潮流数据(IEEE39 node power system standard parameters and trend data)

G.729的coder和decoder，即编码和解码的matlab原代码，对学习G.729标准有很好的参考价值( The G.729 coder and decoder, ie, encoding and decoding matlab source code, to learn G.729 standard has a good reference value)