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QAM的matlab编码，可以看QAM的一定信噪比下，信号的误码率情况(The encode of QAM use MATLAB)

说明：  用于人造视觉 256*256的图像缩小到25*25 用saliency提取显著性区域 并根据设定的阈值剪裁(256* 256 for artificial visual image reduced to 25* 25 with saliency extraction of significant regional and in accordance with thresholds set tailoring)

说明：  将图像从RGB颜色空间转换成lab颜色空间(Transfer image s color space from RGB to lab)

Shan and Chen type multiphase lattice Boltzmann study of viscous coupling effects for two-phase flow

HYBRID pso OPTIMIZATION

有源电力滤波器在产生指令电流时，基于瞬时无功功率的检测方法需要用到低通滤波器，本程序能够实现滑动滤波！(APF generating command current, based on instantaneous reactive power detection methods need to use a low-pass filter, the program can achieve sliding filter!)

Listerature survey on Content based image reteival techs

Quadrature amplitude modulation (QAM) is a modulation scheme in which two sinusoidal carriers, one exactly 90 degrees out of phase with respect to the other, are used to transmit data over a given physical channel. One signal is called the I signal, and the other is called the Q signal. Because the orthogonal carriers occupy the same frequency band and differ by a 90 degree phase shift, each can be modulated independently, transmitted over the same frequency band, and separated by demodulation at the receiver. For a given available bandwidth, QAM enables data transmission at twice the rate of standard pulse amplitude modulation (PAM) without any degradation in the bit error ratio (BER).

很难得WEB。内部资料。初学者必看的，也是工程师们的良好的基础资料(A rare WEB. Internal data. Beginners a must-see, but also engineers a good basic information)

this file contains Matlab code for calculating the snr of mmse equalizer