xianjinPIDkongzhisuanfafangzhendierban

wilson活度系数模型,化工领域，主要应用是求取液相活度系数，但仅仅能用于LLE计算。(wilson activity model)

说明：  讲述LTE关键技术及其发展趋势的详细说明，很有前沿性，很有可读性(About LTE key technologies and development trends in details, very cutting-edge, very readable)

基于Matlab的灰色预测算法.灰色预测是指：通过少量的、不完全的信息，建立灰色微分预测模型，对事物发展规律作出模糊性的长期描述（模糊预测领域中理论、方法较为完善的预测学分支）。(Matlab-based prediction algorithm of gray. Gray prediction means: through a small amount of incomplete information, the establishment of differential gray prediction model, the law of development of things to make long-term description of fuzzy (fuzzy predictive field theory, methods, better predictions branch).)

利用matlab写成的窄带噪声发生，很简单实用，做毕设的时候自己琢磨的，希望对大家有帮助哈(Written by narrow-band noise matlab place, very simple and practical to do when the complete set on her own, and we hope to help Kazakhstan)

mathlab经典算法点到平面距离+matlab代码 很好用的(mathlab classical algorithm point to the horizontal distance+ matlab code is a very good use of)

模拟多径效应和多普勒频移，在不同时延下的仿真(multipath and doppler shift)

只是一个关于短时平均过零率的matlab代码(Just a short-time average zero-crossing rate on the matlab code)

TSP FROM MATLAB WEBSITE

PCA based Feature Extraction and Matching

相控阵天线阵列的密度加权matlab程序代码。 运行gui.m文件 lmax.m和lmin.mLinear_func.m最后几行被调用，放在和Linear_func.m路径相同的文件夹下即可 运行后command window里第一条分割线上面是第一幅图的几个值，第二条分割线上面是第二幅图的几个值。其中，peak_first是数值最大的峰值，peak_second是数值第二大的峰值(第一旁瓣)，theta_var是与 peak_first最近的左右两个谷值横坐标的距离。 因为是找半峰值点的，因为都是小数，在数组里没有正好等于主瓣幅值一半的点，只有接近一半的点，所以要设定一个范围比如大0.05或小0.05都认为是半峰值，但是有的数组里0.05的范围还是太小，所以可能报错。(Phased array antenna array the density weighted matlab program code. The last few lines of the run gui.m the file lmax.m lmin.mLinear_func.m call, same placed Linear_func.m path folder above the dividing line of the command window to run the first picture the several values ​ ​ above the dividing line several values ​ ​ of the second image. Wherein, peak_first numerical maximum peak the peak_second is the the numerical second largest peak (first sidelobe), the theta_var is the abscissa and peak_first recent about two valley distance. To find half the peak point are decimal, the array does not just equal to main lobe amplitude half points, only nearly half points, so you want to set a range, such as 0.05 or 0.05 are considered semi-peak some array, but the range of 0.05 or too small, it may be an error.)