FFT

说明：  用离散正交多项式求三次拟合多项式[MATLAB版本]，希望对大家有帮助(Discrete orthogonal polynomials for three polynomial fitting [MATLAB version], in the hope that everyone has to help)

首先录入一段音频，在通过matlab软件对该音频进行处理，识别出他的波峰波谷，频率变换，然后输出。(First, an audio input, matlab software through the audio processing, identify the peaks and valleys of his, frequency conversion, and output.)

使用matlab进行OFDM系统调制解调模块的实现，其中包括BPSK调制，加入循环前缀，误码率计算。简单易懂的入门级程序，有详细的注释。(OFDM systems using matlab for implementation of modulation and demodulation modules, including BPSK modulation, adding cyclic prefix, the error rate. Straightforward entry-level program with detailed comments.)

PD controller for nonlinear model of robot

Matlab有限元结构动力学分析与工程应用-徐斌 源代码(Matlab finite element structural dynamics analysis and engineering applications - Xu Binyuan code)

使用Matlab开发的设计凸轮的源程序，使用了向量法的设计方法。设计了一个正弦运动规律的凸轮，程序带有较完整的注释，对于初学凸轮设计的人来说应该是一个比较好的参考。(It s the source code of the design of a cam using matlab, which uses the method of vector.)

计算尺寸因子对消光效率和散射效率，吸收效率，后向散射效率等的影响(calculation of the size factor extinction efficiency and the efficiency of scattering, absorption efficiency, after scattering efficiency of)

光学工程很有用的有限元优化问题解，能轻松快速的进行工程类的和光学类的优化处理(Useful in optical engineering finite element solutions of optimization problems can be quickly and easily and optical engineering optimization class)

说明：  用于计算高频下的金属介电常数，主用侧重应用于有限元分析仿真中金属材料的物理属性。(The metal used to calculate the high frequency dielectric constant, the main emphasis used with finite element analysis simulation of the physical properties of metal materials.)

Matlab中SOM神经网络的数据分类--柴油机故障诊断(SOM neural network in Matlab data classification- Diesel Engine Fault Diagnosis)