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TheResearchofSpatialSpectrumEstimationAlgorithminS
智能天线技术是第三代移动通信系统的关键技术之一,也是国内外热门的研究课题。由于无线移动通信的信道传输环境具有复杂性和不确定性,存在多径衰落和时延扩展,因此造成了符号间串扰、同信道干扰、多址干扰等,这些干扰降低了链路性能和系统容量,智能天线技术是解决以上问题的方法之一。 本文首先阐述了智能天线和白适应波束形成的基本理论,然后对自适应算法进行了研究。对一些基本的自适应算法最小均方算法、恒模算法及递推最小均方算法进行了分析讨论,用计算机仿真的结果论证了算法的性能。针对相干干扰介绍了空间平滑技术,对传统的相干干扰抑制方法-空间平滑法进行了分析,采用改进算法有效降低了空间平滑算法的运算量。对信号波达方向(DOA)的估计是智能天线研究的另一关键问题。第四章在介绍了阵列信号处理方法的基础上,先简单介绍了Bartlett、Capon、MUSIC等空间谱估计算法,分析了信源数目过估计与欠估计情况下的MUSIC算法性能,提出一种改进算法,在信源数目有误差的情况下该算法的性能良好。第五章针对多径干扰环境,在分析MMUSIC算法的基础上,本文提出了基于低秩矩阵逼近法的改进MUSIC算法(In this paper, firstly, the author illustrates the principles of smart antenna and adaptive beam forming, and then introduces some typical adaptive algorithms, the LMS ,CMA and RLS algorithms are analyzed and discussed and simulate them in the computer to prove their capability. but they have the disadvantage of high complexity, so they are not fit for practice. The paper analyses the conventional method rejecting spatial smoothing coherent interfering signals, which is spatial smoothing technique)
- 2009-07-02 22:43:06下载
- 积分:1
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boil
对于蒸发冷凝的相变UDF,给与大家参考,希望与大家多多交流(For evaporation condensation phase transition UDF, give your reference)
- 2013-12-09 23:14:08下载
- 积分:1
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MggngaussA
MATLAB高斯噪声声生成函数(用于通信)
(MATLAB Gaussian noise sound generating function (for communication))
- 2012-07-27 21:28:36下载
- 积分:1
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julei
运用matlab语言编译,进行聚类分析,并且给出了matlab界面。(failed to translate)
- 2011-05-17 19:33:55下载
- 积分:1
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VisualCandMatlabunitdesign(1)
Matlab 与 Visual C++ 联合编程教程第一章(Visual C++ & Matlab unit-design)
- 2010-10-14 10:08:35下载
- 积分:1
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sample-nvidia-cpu-gpu
Smple code using Nvidia programs prunted in pdf file
- 2014-10-01 10:59:54下载
- 积分:1
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MUSIC
阵列信号处理中的其中一个传统子空间方法仿真程序,二维music算法。(One of the traditional subspace method simulation program in array signal processing, the two-dimensional music algorithm.)
- 2014-09-04 20:44:59下载
- 积分:1
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Minttegdiff-ma
matlab微积分讲义ppt,包含算法,程序源码等非非常多不错的咚咚,能学习一下 可直接使用。 已通过测试。
(matlab calculus lecture notes ppt, including algorithms, program source code and other non-very good pound, and can learn can be used directly. Has been tested.)
- 2012-07-25 22:57:21下载
- 积分:1
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3
编写程序:基类base,有一个私有数据成员n,派生类Derived公有继承基类base,Derived中新增加一个数据成员m(Programming: the base class base, there is a private data member n, the derived class Derived inherits the base class public base, Derived add a new data member m)
- 2013-12-17 13:38:33下载
- 积分:1
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bios_config
BIOS 的设置与调整一直以来都是电脑使用的热点,尤其是大多数初、中级
用户都希望能够有资料帮助他们,本书以 BIOS 的基础知识为起点,针对主板、
显卡、调制解调器等的 BIOS 设置、升级、优化进行了系统的讲解,教读者如何
通过 BIOS 来达到优化系统、解决常见问题。本书的读者定位为:电脑初、中级
用户。 (BIOS setup and adjust the use of computers has always been hot, especially the majority of the early, intermediate users wish to have information to help them, this book to BIOS basic knowledge as a starting point, for motherboards, graphics cards, modems, BIOS, etc. settings, upgrade, and optimize the system to explain, teach readers how to achieve optimized system BIOS to resolve common problems. Readers of this book as: computer early, intermediate users.)
- 2007-11-07 23:38:15下载
- 积分:1