zcross

说明：  matlab pcm的实现的函数，适合学生使用哦 函数有说明 方便阅读(matlab implement pcm for students. we have information about the function being used)

这个文件包含了AM、FM、PM、ASK、FSK、PSK、MSK调制解调的MATLAB程序，并以文档的形式总结下来。(This file contains the AM, FM, PM, ASK, FSK, PSK, MSK modulation and demodulation MATLAB program, and conclude in the form of the document.)

说明：  计算在同一区域上的二重高斯-勒让德积分。(Calculating double Gauss integral in the same region)

经典的knn最近邻算法 利用matlab的内部JIT加速算法，简单好用，高速时效。(Classic knn nearest neighbor algorithm using matlab internal JIT accelerated algorithm, easy to use, high-speed aging.)

说明：  OFDM系统中，在没有频率偏差时，解调后的结果与原始数据一致，而存在频率偏差时，解调后的结果与原始数据差异较大，且频率偏差越大，解调结果与原始数据的差异就越大。(In OFDM system, when there is no frequency deviation, the demodulation result is consistent with the original data, while when there is frequency deviation, the demodulation result is significantly different from the original data, and the greater the frequency deviation is, the greater the difference between the demodulation result and the original data will be.)

基于BP神经网络的ＰＩＤ控制 绝对能运行的(Based on BP neural network PID control can certainly run)

阻滞增长模型，基于logistic的混沌效应分析(chaos analysis based on mathmatic model of logistic)

It is the ant-optimization method codey by matlab.

灰色系统预测源代码,本人亲自试过可用，为什么一定要20个字呢(Grey forecasting the source code )

一卡一车，停车刷卡闸门打开，开始自动计时计费；取车刷卡闸门打开，自动统计停车时间及所需缴纳的费用。(A card for a car, parking gates open credit card, start the automatic time billing take the car to open the gate card, automatic statistics downtime and required to pay costs.)