-
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
-
SIX
Matlab教程第六章案例,时间序列分析与计量(Matlab Guide Chapter cases, time series analysis and measurement)
- 2013-07-20 10:07:12下载
- 积分:1
-
marioti.tar
ES UN PROGRAMA DE MARIO BROS
- 2014-10-13 18:27:08下载
- 积分:1
-
Blur3
A Survey of Gaussian Convolution Algorithms
高斯卷积方面的综述文档和源码 可以供相关人员参考(A Survey of Gaussian Convolution Algorithms
digital image processing)
- 2014-09-02 19:13:58下载
- 积分:1
-
TSP(GA)
遗传算法求tsp问题及其matlab代码实现
主程序中有一rand( seed ,n) n 为某一整数, 这是设置随机数发生器的种子,这样实际上规定了随机数发生的方式,因此后面的随机数其实都是定下来的,这样所有人就可以看到同一结果, 可注释掉此行,那么每次的结果就不一定再相同了. (Genetic algorithm to solve the TSP problem and the matlab code to achieve
A Rand main program ( seed , n) n as an integer, which is the setting of the random number generator seed, this actually provides a random number generating means, so the random number behind actually are determined, so that everyone can see the same results, can comment out this line, then each time the results do not necessarily the same.
)
- 2015-01-27 19:23:01下载
- 积分:1
-
Main_Frequency_decoup_Opti_cdm1
悬置功能计算的,能量解耦的方法,优化及其位移的计算(The calculation of suspended function, energy decoupling method, optimization and calculation of displacement)
- 2015-08-06 09:25:49下载
- 积分:1
-
matlab(MO--FANG)
Matlab模仿程序源代码,实现模仿游戏(Matlab imitate program source code, imitation game)
- 2015-01-13 22:14:34下载
- 积分:1
-
TI-RFID-antna
ti关于rf天线的设计、调试方法,13.56M精讲(
ti on rf antenna design, debugging method, 13.56M succinctly)
- 2016-07-01 12:31:01下载
- 积分:1
-
MATLAB-figure-user-interface
MATLAB图形技术——绘图及图形用户接口(matlab figure user interface)
- 2013-01-29 11:22:54下载
- 积分:1
-
MATLAB
同步电机模型的MATLAB仿真.........(Synchronous motor model simulation of MATLAB .........)
- 2009-06-04 10:38:34下载
- 积分:1