temperature-good

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.)

texture in image processing

QGA_fxy是用量子遗传算法（quantum genetic algorithm）解决二元函数寻优的问题。文件打开后运行QGA_fxy.m文件即可得到结果，代码中有详细注释，方便修改。运行示例已经保存为图片附在压缩包中。(QGA_fxy binary function is to solve optimization problems using quantum genetic algorithm (quantum genetic algorithm). Run QGA_fxy.m file to get the file to open the result, the code has detailed notes, easy to modify. Run the sample has been saved as a picture attached to the compressed package.)

这是关于正交解调与正交调制的一些matlab源代码 呵呵(This is about orthogonal demodulation and orthogonal modulation of some of the matlab source code ha ha )

说明：  Practical Signal Processing using MATLAB

用matlab做的 回归分离器+数据 (Using matlab to do regression separator+ data)

信道划分代码。它是做通信算法的基础。可以模拟简单的信道变化。(Channel code division. It is the basis for the algorithm to do communications. Can simulate a simple channel change.)

对Lena图像128*128，进行QF=50和QF=40的压缩，然后解压缩，并分别计算压缩图像的PSNR，给出图像压缩后的图像(Lena image of 128* 128,QF=50 and 40 compression, then uncompress, and calculate the PSNR compressed image, after image compression)

是matlab之语音处理与合成工具箱这本书的随书程序，很实用哦。珍藏！！！(good!!It s useful for you !!!!!)

说明：  The back lifting discrete wavelet transform using the 9-7 Antonini filters