acoustic

matlab，important，good，供参考(matlab, important, good, for reference)

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. )

雷达宽频带覆盖干扰信号产生时域频谱仿真程序(Wideband radar coverage domain spectral interference signal is generated when the simulation program)

Wimax performance analysis

说明：  cole_cole 1D inverse

image of different descriiptors for image recognition and retreival

matlab的基础知识ppt，适合初学者，希望大家好好学习(matlab basics ppt, for beginners, I hope you learn)

采用L-D算法，估算自回归模型（AR模型）系数。L-D法是一种矩阵递推估计法(LD algorithm to estimate the coefficients of the autoregressive model (AR model). The LD method is a matrix recursive estimation method)

harris-角点检测- matlab程序- 基础程序(harris corner detection matlab program)

使用matlab绘制根轨迹图实例，已经测试可直接在matlab中打开并运行。(Using matlab draw root locus instance, has been tested directly in matlab open and run.)