filter

离散傅立叶变换DFT和快速傅立叶变换FFT的比较(Discrete Fourier Transform and Fast Fourier Transform Comparison)

Floyd的Matlab教程，很简单。。 几行代码而已。(Floyd' s Matlab tutorial, very simple. . A few lines of code.)

一种有效提高线天线矩量法计算速度的新方法(A new method for calculating antenna moment method effectively improve the speed)

IEEE 802.16d路径损耗模型属于对数正态阴影路径损耗模型。根据郊区宏蜂窝中发射机和接收机之间的障碍物密度，可以分为三种类型ABC。该代码利用MATLAB仿真了IEEE 802.16d路径损耗模型，并画出了未修正和修正的模型曲线以供对比参考。(IEEE 802.16d path loss models are lognormal shadow path loss model. According density suburban macrocell obstacle between transmitter and receiver can be divided into three types A B C. The code using MATLAB simulation of the IEEE 802.16d path loss model, and draw the uncorrected and corrected model curve for comparative reference.)

System identification

cocos2dx 11种粒子效果源码,cocos2dx 11 seed particle effect source(cocos2dx 11 seed particle effect source)

基于 MATLAB 的语音信号分析与处理的课程设计.录制一段自己的语音信号，并对录制的信号进行采样；画出采样后语音信号的时域波形和频谱图；给定滤波器的性能指标，采用窗函数法或双线性变换设计滤波器，并画出滤波器的频率响应；然后用自己设计的滤波器对采集的语音信号进行滤波，画出滤波后信号的时域波形和频谱，并对滤波前后的信号进行对比，分析信号的变化；回放语音信号(MATLAB-based voice signal analysis and processing of the curriculum. Record a voice signal itself, and the recorded signal is sampled draw sampled speech signal time-domain waveform and frequency spectrum filter performance given by using window method or the bilinear transformation to design a filter, and draw the filter frequency response then filter of their own design collection of the speech signal is filtered, the filtered signal to draw the time domain waveform and frequency spectrum, and filter the signal before and after comparison, analysis of signal changes playback voice signal)

A： 傅里叶变换后频谱图 B：陷波函数作 联合开发网 - pudn.com

在不加噪声的情况下，利用细菌觅食优化算法（BFA)辨识NARMAX模型(In the case without noise, the use of bacterial foraging algorithm (BFA) Identification NARMAX model)

搭建二级倒立摆系统，采用极点配置的方法进行控制，使其稳定(Build a double inverted pendulum system, using the method of pole placement control to stabilize)