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说明：  通过时域转换为频域，在频域中截取低频部分，去掉高频部分将结果再转换到时域以实现低通滤波的功能。(Through the time domain is converted to frequency domain, in the frequency domain low-frequency part of the interception, to remove high-frequency part of the results and then switch to the time domain in order to achieve low-pass filter function.)

说明：  无线通信第三章第十一题的答案Jakes Model 锐利衰落信道(Chapter XI of the wireless communications answer to sharp fading Jakes Model)

说明：  MATLAB code forOrdinary differential equation

说明：  将总金额分若干分，分批在各档位建仓，通过高抛低吸不断降低成本获利(The total amount will be divided into several sub-batches in the stalls position is opened by throwing buy low, sell high profit continuously reduce costs)

this is some code for modulation and demodulation

matlab使用入门学习，很有用的。朋友下载把！(Getting Started to learn matlab, very useful. Friends download the!)

关于PID控制的整定方法，采用遗传算法。(Tuning of PID control method, using genetic algorithms.)

This function is for optimization when you draw contour

matlab 学习技巧，现在把我用的，也就是对我帮助很大的留个文件传上去，希望对大家有用，第一入门与提高(matlab learning skills, and now I use, which is a great help to me to leave a document passed up, we want to be useful, the first entry and improve)

数字图像处理matlab版自编函数，包括边缘处理等各种函数(The various functions of the digital image processing matlab version of the self-function, including edge treatment)