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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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tianxian
共面波导馈电的超宽带天线研究_有效解决天线问题(Ultra-Wideband Antenna coplanar waveguide fed _ effectively solve antenna problems)
- 2015-03-30 10:23:20下载
- 积分:1
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C1-
应用于地震勘探领域的资料处理,第一代相干算法处理。(Used in seismic exploration in the field of data processing, the first generation of coherent algorithm processing.)
- 2013-12-23 20:51:42下载
- 积分:1
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MATLABsimulation
《MATLAB电机仿真精华50例》源代码(MATLAB simulation of the essence of 50 cases of motor)
- 2009-05-02 12:15:14下载
- 积分:1
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readdicomPicWithC++ByLee
view dicom picture with C++
- 2010-09-21 10:31:14下载
- 积分:1
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kalman
卡尔曼滤波的完整C++源代码,非常全,内含matlab相关的程序,使用时请结合具体状态方程。(Kalman filtering the complete source code, very full.)
- 2013-07-31 15:19:22下载
- 积分:1
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Recursive_integer_division
递归法求解整数划分。
整数划分,是指把一个正整数n写成如下形式:
n=m1+m2+…+mi (其中mi为正整数,并且1 <= mi <= n),则{m1,m2,...,mi}为n的一个划分。
如果{m1,m2,...,mi}中的最大值不超过m,即max(m1,m2,...,mi)<=m,则称它属于n的一个m划分。这里我们记n的m划分的个数为f(n,m) (Recursive method integer division. Integer division, refers to a positive integer n written as follows: n = m1+m2+ ...+mi (where mi is a positive integer, and 1 < = mi < = n), then {m1, m2, ..., mi} is a division of n. If {m1, m2, ..., mi} does not exceed the maximum value of m, i.e., max (m1, m2, ..., mi) < = m, m n is said that it belongs to a division. Where m is the number of division n our mind is f (n, m) )
- 2014-02-06 14:21:38下载
- 积分:1
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xinghaofengxi
数字信号处理-理论、算法与实现 一书中所涉及到的绝大部分算法。
Dsp_c C语言编写的算法程序。
Dsp_fortran FORTRAN语言编写的算法程序。
Dsp_matlab用MATLAB编写的信号处理程序,包含本书各个章节的
大部分例题。(" Digital Signal Processing- Theory, Algorithm and Implementation of a book related to most of the algorithm. The DSP_C C language algorithm. Dsp_fortran FORTRAN language written algorithm. Dsp_matlab prepared using MATLAB signal processing procedures, including most of the examples of the various chapters of the book.)
- 2013-04-24 21:13:43下载
- 积分:1
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MATLABmusic2
matlab演奏音乐《天空之城》的程序代码2(matlab music code2)
- 2012-08-11 15:50:55下载
- 积分:1
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mpu6500
MPU6500 编程,6轴的陀螺仪和加速度计,用于姿态测量(MPU6500 )
- 2014-10-14 09:19:37下载
- 积分:1