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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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zykz
利用最优控制求解汽车路径跟踪程序，其结果收敛性良好。(Optimal control to solve the vehicle path tracking, the results of convergence.)
- 2012-08-15 11:34:07下载
- 积分：1
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bfgs
用BFGS算法求解无约束问题
是一种比秩1算法更有效的优化方法(Unconstrained problem with BFGS algorithm is an algorithm is more efficient than the rank of an optimization method)
- 2013-12-08 15:11:52下载
- 积分：1
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SVPWM
vpwm的matlab仿真主要利用matlab进行svpwm(Matlab simulation based on SVPWM mainly utilizes Matlab to process park transission, park anti transition, wave output and etc produced by SVPWM.)
- 2010-06-04 10:06:45下载
- 积分：1
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from_VSFM_to_MATLAB
Vsfm to Matlab
by Bashar Alsadik
05 Feb 2014
Vsfm to Matlab
- 2014-02-06 16:24:45下载
- 积分：1
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Sherif Mohamed Dec 2018
we shed light on the
potential and implementation of index modulation (IM) techniques for MIMO and multi-carrier communications
systems which are expected to be two of the key technologies for 5G systems. Specifically, we focus on two
promising applications of IM: spatial modulation (SM) and orthogonal frequency division multiplexing with IM
(OFDM-IM), and we discuss the recent advances and future research directions in IM technologies towards spectral
and energy-efficient 5G wireless networks.
- 2019-05-26 04:18:49下载
- 积分：1
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041010
现代信号处理胡广树版的附送光盘MATLAB代码源程序，里面涵盖了所有的例题代码。(Modern Signal Processing Hu Hiroki free CD-ROM version of the MATLAB source code, which covers all of the example code.)
- 2008-12-24 15:05:52下载
- 积分：1
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yichuantuxiangfege
用遗传算法实现道路图像分割，运行良好，方法简单，欢迎下载(Road image segmentation using genetic algorithm, works well, simple methods are welcome to download)
- 2012-04-10 20:25:21下载
- 积分：1
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cla
追赶法求解矩阵；牛顿插值函数，三次样条插值函数仿真龙格库塔现象；二分法求解根与牛顿迭代，弦割法，简单迭代法的程序(Section three order spline interpolation function Newton interpolation
Iterative method)
- 2014-01-10 22:06:51下载
- 积分：1
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seismic response_spectrum
求地震动的加速度反应谱 速度谱 位移谱(Acceleration response spectrum for ground motion velocity spectrum displacement spectrum)
- 2019-04-23 10:26:33下载
- 积分：1
