dsp

偏移四相移相键控调制，也就是OQPSK，输出信号为OQPSK调制信号的复包络(Offset four-phase phase shift keying modulation, that is, OQPSK, the output signal for the OQPSK modulated signal complex envelope)

机器学习经典决策树算法的实现 输入训练标签输出预测结果(the classificial machine learning algorithm, input label and traning set and get predictions)

火焰特性提前的代码，很好用，对图像识别和后续处理有帮助。(Flame characteristics ahead of the code, very easy to use, for image recognition and follow-up processing helpful.)

用于灰色模型的应用，适用于解决简单数学建模的问题。(For the application of grey model, applicable to solve a simple problem of mathematical modeling.)

虚拟声实现：对给定音源(.WAV)使用头相关函数进行变换，改变其距离及角度，含有静态及动态两种模式。(Virtual Sound generation, static and motion.)

说明：  直接序列扩频通信系统建模与仿真 PN码序列产生代码（matlab)(PN code sequence generated code (matlab))

image filtering to reduce difrent type of noise

本代码是基于颜色特征的关键帧提取代码，是用matlab来实现的。(The code is based on color features keyframe extraction code is used matlab to achieve.)

This is a pdf filw of the course Nonlinear Programming in MIT

编写程序将含有20个数据的数组M分成两个数组：正数组P和负数组N，并分别统计两个数组的个数，显示在屏幕上。(Write a program containing the data array 20 is divided into two arrays M: positive and negative groups Array P N, and the number of two arrays statistics were displayed on the screen.)