getzcfeat

采用时频分布参数来描述语音特征，对基于正弦模型的多种时频参数进行了比较(Time-frequency distribution parameters used to describe the voice characteristics of the multiple sinusoidal model-based time-frequency parameters are compared)

摘要:正交频分复用(OFDM)是第四代移动通信的核心技术。该文首先简要介绍了OFDM基本原理,重点研究了理想同步情 况下,保护时隙(CP)和不同的信道估计方法在高斯信道和多径瑞利衰落信道下对OFDM系统性能的影响。在给出OFDM系 统模型的基础上,用MATLAB语言实现了整个系统的计算机仿真并给出参考设计程序。最后给出在不同的信道条件下,保 护时隙、信道估计方法对OFDM系统误码率影响的比较曲线,得出了较理想的结论。 (O FDM is the key techno logy of 4G in the field of mobile comm unication.In this article O FDM ba sic p rinc ip le is briefly in troduced.Then,the influence of CP and d iffe rent channe l e stim a tion on the system pe rfo rm ance is emp ha tica lly analyzed respectively in Gauss and R ayle igh fading channe ls in the cond ition of ideal synchronization.B e sides,based on the given system mode l O FDM system is compu te r sim u la ted w ith MA TLAB language and the refe rentia l design p rocedure is given.Fina lly,the B ER cu rves of CP and channe l e stim ation a re given and comp ared.The conclusion is sa tisfac to ry. )

奥本海姆信号与系统(第二版)及习题答案，还有《信号与系统》计算机练习 利用MATLAB 刘树棠翻译(Oppenheim Signals and Systems (second edition), and exercise answers, and " Signals and Systems" computer exercises using MATLAB Liu Shutang translation)

用矩量法计算半波振子的电流分布、输入阻抗、E面方向图。(Calculated half-wave dipole moment method using the current distribution, input impedance, E plane patterns.)

基于分水岭算法源程序含文章，可有效分割处图像(Based watershed algorithm source code containing the article, which can effectively split at the image)

Email must the same with registered Email info EMail: Email must the same with registered Email info EMail: File: Largest 100M, the name should less 40 bytes long and should be English. Only support .rar,.zip,.gz filesM, the name should less 40 bytes long and should be English. Only support .rar,.zip,.gz files

这是跳频程序通过MATLAB的仿真分析，是很好的学习帮助程序(This is frequency-hopping process through MATLAB simulation analysis, are very good procedures to help study)

大家看看吧，很好的Matlab学习资料(Let everyone take a look at, very good learning materials Matlab)

给定很多数据点之后找这些类的聚类中心，然后重新分类。(Given after a lot of data points to find these kind of cluster center, and then reclassified.)

assk,fsk,psk,dpsk的matlab仿真程序(assk, fsk, psk, dpsk the matlab simulation program)