maple

These scripts demonstrate techniques used to generate test data and write those data to external data files.

这里面有两个程序，两个都是采用4QAM调制。不过个人觉得第一个更容易懂，因为写的很有条理。我改的那个程序就是根据这个来的。 不过在这里面有个问题就是信道系数只能是由高到低，大家可以试试，改成[0.227 0.46 0.688 0.46 0.227]这个是老师给我的仿真中常用的信道系数，这个成为归一化信道，就是系数平方和为1. 第二个程序没有涉及到信道系数，但是这个程序当中，在128个子载波中，前后有32个空载波，这个在OFDM中也是经常用的，这样可以降低误码率。 (And there are two programs, two are based on 4QAM modulation. But personally feel that the first is easier, because the writing is organized. I changed that procedure is based on the past. However, there is a problem in that there is only channel coefficients from high to low, we can try and change into [0.227 0.46 0.688 0.46 0.227] This is the teacher gave me the simulation channel coefficient commonly used, this became normalized channel, is coefficient of the square and is 1. The second program is not related to channel coefficients, but this program which, in the 128 sub-carriers, the before and after the 32 air carriers, the in OFDM is also often used, which can reduce the error rate.)

说明：  这是工业经常用到的模糊自整定的PID，具有很强鲁棒性，而且控制器容易设计(This is a frequently used industrial fuzzy self-tuning of PID, are highly robust, and easy to design controllers)

说明：  读取地震数据软件，是地震资料处理的基础性资料(seismic software)

流行学习，改进Nystrom降维方法，很好用，欢迎下载(Improved Nystrom Kernel Low-rank Approximation)

编程中出现的小程序，四字节char型数组转浮点数(four byte char to float)

使用matlab环境的GUI工具仿真八段均衡器，可视化界面，频域响应分析。(A case study of 8-band Equlizer in matlab by GUI tool)

It interpol the averager .......very usefull if you know how to use it, it will help you alot

matlab程序编写教程，是学习matlab编程的好资料，内容详细(Matlab programming tutorial, is to learn matlab programming good material, full details )

以matlab開發各種適應性演算法，代碼包含DSANC、FFTANC、LMS、N-LMS、RVSS及測試main檔。適應性濾波器本案例以兩種farvoice及nearvoice測試通過，表示可濾除各種echo雜訊可能。(To develop a variety of adaptive algorithm matlab code contains DSANC, FFTANC, LMS, N-LMS, RVSS and testing main gear. Adaptive filter in this case two farvoice and nearvoice tested, indicating that can filter out various echo noise possible.)