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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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SOM-(Data-Modeling)
A program for data modeling by SOM neural network (with GUI).
- 2011-07-16 15:10:25下载
- 积分：1
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Trace_SINS
说明： 综合实验编写的航迹发生器及SINS系统仿真 仔细看明白 绝对可用 simlink 编写 实时性强(The preparation of a comprehensive test of track generator and SINS system simulation closer look to understand the absolute time available to prepare strong simlink)
- 2010-03-19 20:53:29下载
- 积分：1
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KNN
通过KNN算法，实现WIFI室内定位在matlab环境下的仿真(Simulation of WIFI indoor location in Matlab environment through KNN algorithm)
- 2021-04-06 20:49:02下载
- 积分：1
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LMS
LMS自适应滤波算法,(LMS adaptive filtering algorithm,)
- 2007-12-04 15:36:04下载
- 积分：1
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Data-type-conversion
这是Simulink关于数据转换仿真模型。希望对初学者有用(This is the Simulink simulation model about the data transformation. Hope useful for beginners
)
- 2014-02-16 19:23:41下载
- 积分：1
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files
Sir i need the coding for Artificial neural network
- 2014-02-18 14:10:23下载
- 积分：1
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Bound_Constrainted
This is IP optimization method examples
- 2009-12-24 21:28:36下载
- 积分：1
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Practical_firdesign
This tutorial white-paper illustrates practical aspects of FIR
filter design and fixed-point implementation along with the
algorithms available in the Filter Design Toolbox and the
Signal Processing Toolbox for this purpose.
The emphasis is mostly on lowpass filters, but many of the
results apply to other filter types as well.
The tutorial focuses on practical aspects of filter design
and implementation, and on the advantages and disadvantages
of the different design algorithms. The theory behind
the design algorithms is avoided except when needed to motivate
them.
- 2009-06-11 13:32:17下载
- 积分：1
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music_1
一个可以实现超分辨率的程序，大家可以试一试(One can achieve super-resolution process, we can try)
- 2011-04-21 17:04:58下载
- 积分：1
