Description: 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 Platform: |
Size: 4444160 |
Author:王强 |
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Description: MVDR自适应波束形成的LMS算法使用，LMS算法迭代次数对波束形成结果的影响-MVDR adaptive beamforming using the LMS algorithm, LMS algorithm is the number of iterations on the results of beam-forming Platform: |
Size: 378880 |
Author:雨儿 |
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Description: MATLAB程序，用最陡下降实现LMS算法，设定不同的a值，可以验证该算法的收敛性，kalman算法和波束成型-MATLAB program, using the steepest descent LMS algorithm to achieve, set a different value, you can verify that the convergence of the algorithm, kalman algorithm and beam forming Platform: |
Size: 32768 |
Author:dereklee |
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Description: 本文件是关于自适应波束形成算法的matlab仿真，其中对LMS、RLS等算法给出了具体的程序。-This document is on adaptive beam-forming algorithm of matlab simulation, including LMS, RLS) give a specific procedures.
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Size: 182272 |
Author:苏明坤 |
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Description: 该程序的功能是实现波束，其中使用的LMS自适应算法-The program is a beam-forming procedure, the algorithm uses the LMS algorithm. Platform: |
Size: 1024 |
Author:shizhaoyuan |
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Description: 该算法主要实现lms自适应波束形成功能，其原理简单，操作方便，有一定的工程实用价值-The algorithm is mainly realize adaptive LMS beam-forming function, its principle is simple, the operation is convenient, the project has certain practical value
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Size: 363520 |
Author:yatony |
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Description: Its all about the smart antenna system,how the beam forming is achieved and how it will steer in required directions.in this algorithms like LMS,CMA,RLMS..... and some other type of algorithms are studied Platform: |
Size: 1181696 |
Author:sairam |
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Description: 这是一个关于阵列信号处理的LMS自适应波束形成MATLAB程序-This is an LMS adaptive beam forming array signal processing on MATLAB program Platform: |
Size: 1024 |
Author:强 |
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Description: 智能天线LMS算法仿真程序，很好的实现了自适应波束成形过程-Intelligent antenna LMS algorithm simulation program, a good implementation of the adaptive beam forming process
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Size: 1024 |
Author:何波辉 |
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Search - LMS beam forming