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ofdm
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.
)
- 2009-06-01 16:10:00下载
- 积分：1
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fangxing
这是一个应用一致性几何绕射理论编写的简单程序，初学学者可作为参考(This is a simple program UTD written application, can be used as a reference for beginners and scholars)
- 2021-01-13 16:48:53下载
- 积分：1
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sampling
能够自动得到所提取的样本的R,G,B,H,S,V值和样本编号，在样本提取阶段使用很方便(matlab sample)
- 2012-04-21 15:13:28下载
- 积分：1
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BASIC_WM
本函数是一个实现基本通信水印模板的函数，对图像进行了简单的加噪处理(This function is a realization of basic communication watermark image template function, the simple addition to deal with the noise
)
- 2011-05-30 18:58:37下载
- 积分：1
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Partial-code
MUSIC AND VOICE SEPARATION FOR DIFFERENT PITCH. SUBMITTED PARTIAL CODE
- 2014-02-26 05:04:12下载
- 积分：1
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mcode
说明： AM调制解调仿真，调幅度测量，不含干扰 (AM Modulation and Demodulation, transfer rate measurement, without interference)
- 2010-04-02 19:03:17下载
- 积分：1
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iratation
阈值迭代分割图像，可以为研究迭代法朋友们提供一定帮助。(Iterative image segmentation threshold can be friends for the study iterative methods provide some help.)
- 2011-05-22 09:56:08下载
- 积分：1
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susan--
susan 开发源代码 在matlab 中的应用(susan code matlab)
- 2011-10-04 10:54:11下载
- 积分：1
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1
说明： 给出轨道根数，求初始位置与速度并作图。其中地球以真实比例缩放画出(Gives the orbital elements, find the initial position and velocity, and mapping. Which to draw the earth to the true scaling)
- 2011-11-29 19:26:52下载
- 积分：1
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Kmeans-image-segmentation
matlab图像分割实例，K均值用于图像分割，割调用库函数实现，带注释，简单易懂(matlab image segmentation examples, K means for image segmentation, cutting calls library functions, with comments, easy to understand)
- 2010-06-23 17:21:24下载
- 积分：1
