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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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Matlab-and-VC
vc 与 matlab的混合编程,关于调用,执行(VC AND MATLAB )
- 2014-12-19 11:11:57下载
- 积分:1
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F16-simulation
经典F16飞行控制仿真程序(含MDL及M源码)-MATLAB源代码(Classic F16 flight control simulation program-MATLAB source code (with MDL and M of source))
- 2021-01-02 11:18:57下载
- 积分:1
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fcest_bfsk
该工程实现2fsk的载频估计,返回2fsk两个载频估计结果。(The project is estimated to achieve 2fsk carrier frequency, return 2fsk two carrier frequency estimation results.)
- 2013-12-25 19:07:04下载
- 积分:1
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MwArray
matlab与visual C++混编中mwArray与Mat之间相互转换(The translation between mwArray and Mat.)
- 2015-04-10 15:41:12下载
- 积分:1
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win-iotest
并口类别控制类库源码,可以方便的实现对并口的控制操作(type library source, to facilitate the realization of the parallel port control operation)
- 2006-08-10 15:52:00下载
- 积分:1
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11
Matlab教程第11章,编成与案例教学(Matlab Guide Chapter 11, compiled and Case Teaching)
- 2013-07-20 19:57:58下载
- 积分:1
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GCP
GCP是地面控制点的缩写,主要是处理地面控制点的类,包括控制点的读取处理以及写出。(GCP is an acronym for ground control points, mainly handling ground control points, including read and write process control points.)
- 2014-02-25 11:53:44下载
- 积分:1
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bolieda
说明: 一个模拟雷达杂波的程序代码,对开发雷达模拟方面有借鉴作用。(A simulated radar clutter the code, the development of radar simulation serve as a reference.)
- 2011-04-09 21:14:29下载
- 积分:1
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fuzzy
简单介绍了模糊控制器的隶属度函数的matlab代码输入(A brief introduction to the fuzzy controller matlab code input membership function)
- 2013-12-06 21:04:47下载
- 积分:1