soundchange

多载波调制(Multicarrier Modulation)采用了多个载波信号。它把数据流分解为若干个子数据流，从而使子数据流具有低得多的传输比特速率，利用这些数据分别去调制若干个载波。所以，在多载波调制信道中，数据传输速率相对较低，码元周期加长，只要时延扩展与码元周期相比小于一定的比值，就不会造成码间干扰。因而多载波调制对于信道的时间弥散性不敏感。多载波调制可以通过多种技术途径来实现，如多音实现(Multitone Realization)、正交多载波调制(OFDM)、MC-CDMA和编码MCM(Coded MCM)。其中，OFDM可以抵抗多径干扰，是当前研究的一个热点。(Multi carrier modulation (Multicarrier Modulation) uses multiple carrier signal. It decomposes a data stream into a plurality of sub data stream, so that the sub data stream transmission bit rate is much lower, respectively to a plurality of carrier modulation using these data. )

similation robot manipulateur 2ddl

多用户检测器的性能分析和仿真研究，有详细的源代码，希望各位有用(Multi-user detector performance comparison analysis of simulation studies, the main simulation file has detailed instructions)

神经网络在手势识别中的应用及其相关的一些例子.(Neural network in gesture recognition application and its related some examples.)

汽车操作动力学的简化2自由度模型，使用MMatlab实现。能实现对汽车的动力学仿真 (Automotive operating dynamics of simplified two degree of freedom model, use MMatlab. Dynamics simulation of car)

说明：  matlab光谱预处理之光谱平滑，包括移动平滑及SG平滑(Spectral smoothing of MATLAB spectral pretreatment, including moving smoothing and SG smoothing)

用matlab实现iris数据分类，适合初学者的一个很有用的算法(Using matlab to achieve iris data classification, suitable for beginners of a useful algorithm)

基于马尔科夫随机场的过绿色模拟退火的分割方法程序，包含如何建立马尔科夫随机场。(Markov random field segmentation method for green program based on simulated annealing, including how to build the Markov random field.)

说明：  PSO算法和BP神经网络都是现在非常热门的两个算法，在各自的领域都担当着至关重要的作用，通过MATLAB实现pso优化bp中以发挥其最大优势(PSO algorithm and BP neural network are two very popular algorithms, which play an important role in their respective fields. Through MATLAB, PSO optimizes BP to give full play to its greatest advantage)

模拟OFDM体制的数字电视信号DVB-T的接收全过程，包括下变频、D/A转换、滤波、星座解调等。。。很实用！(Simulated OFDM system, DVB-T digital TV signal reception of the entire process, including down-conversion, D/A conversion, filtering, demodulation and other constellations. . . It works!)