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dbtex2
信号员相干时候的DOA 估计应用了其它DOA估计算法(Members of coherent signals when the DOA is estimated that the application of the other DOA estimation algorithm)
- 2008-04-17 17:15:23下载
- 积分:1
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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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PSK8_MODEL_SIMULATION
Matlab Simulink model. Demonstration of transciever. PSK-8 modulation. Time Division Multiplexing
- 2012-04-14 18:58:14下载
- 积分:1
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MaxDistence
基于类间最大距离的阈值处理方法对一幅彩色图像进行图像分割(Between class thresholding method based on a maximum distance of a color image segmentation)
- 2014-12-17 22:13:35下载
- 积分:1
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cheliangjiance
车辆检测 matlab代码,根据车辆高宽长度信息,提取车辆几何特征(Vehicle detection matlab code, according to the aspect of the vehicle length information extracted geometric characteristics of vehicles)
- 2014-02-21 15:36:13下载
- 积分:1
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task2
大气统计方法作业 对给定数据进行功率谱分析 并画出功率谱图(For a given power spectrum analysis of the data and draw the power spectra)
- 2013-05-25 15:56:14下载
- 积分:1
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Lightfacedetection(Matlab)
亮度人脸检测算法,能快速识别人脸,精度高,速度快(Brightness of face detection algorithm to quickly identify human faces, high precision, fast)
- 2007-11-24 18:19:54下载
- 积分:1
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Mie
Mie散射计算,另包含相对尺度和复折射率的计算程序(Mie scattering calculations, and contains the relative scale and complex refractive index of the calculation program)
- 2009-10-06 13:55:50下载
- 积分:1
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Matlab_seven
随机信号的一些基本MATLAB程序,对初学者很有帮助(random signals in the MATLAB some of the basic procedures, helpful for beginners)
- 2006-06-28 13:02:04下载
- 积分:1
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4SVS_UKF_MAG
design UKF for a low cost INS/GPS with magnetometr
- 2011-05-10 15:53:06下载
- 积分:1