-
csma_cd
说明: 802.11无线网络通信中基本CSMA/CA基本方式和RTS/CTS的仿真实现比较。(802.11 wireless network communications in the basic CSMA/CA basic mode and RTS/CTS comparison of the simulation.)
- 2008-11-12 11:27:39下载
- 积分:1
-
power_sfavg
power_sfavg.rar,功率电子领域matlab仿真文件,已经验证过,程序运行正常(power_sfavg.rar,
,Power electronics field matlab simulation file, has already been
verified, the normal operating procedures)
- 2013-07-14 12:33:47下载
- 积分:1
-
LayoutParamsParser
Layout Params Parser Source Code for Andriod.
- 2013-11-11 10:01:57下载
- 积分:1
-
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
-
Two-HopRelayinginLTE-ADownlink
说明: LTE-A中的AF和DF中继研究,比较有用(LTE-A in the AF and DF relaying research, more useful)
- 2011-03-11 21:59:50下载
- 积分:1
-
greyforecasting
灰色预测,简单的编程,大家多提意见(Gray forecast, a simple programming, we do so!)
- 2007-01-10 17:27:34下载
- 积分:1
-
extractMainFrame
matlab编写的视频关键帧提取程序,可自动从视频中提取帧,提取第几帧可在程序中自行设定,另附有批量处理视频的主函数。(matlab prepared video key frame extraction procedures can be automatically extracted from video frames to extract the first few frames can be set in the program, batch processing video attached with the main function.)
- 2014-01-15 15:02:27下载
- 积分:1
-
lda-0.2-matlab
matlab判别分析,基本思想是将高维的模式样本投影到最佳鉴别矢量空间,以达到抽取分类信息和压缩特征空间维数的效果,投影后保证模式样本在新的子空间有最大的类间距离和最小的类内距离,即模式在该空间中有最佳的可分离性。(matlab discriminant analysis, the basic idea is to sample the high-dimensional pattern projected onto the optimal discriminant vector space, in order to achieve the classification of information extraction and compression feature space dimension effect, the projected sample assurance model in the new subspace has the largest class room the intra-class distance and the minimum distance, i.e., have the best separability pattern in the space.)
- 2015-04-21 16:26:15下载
- 积分:1
-
HVDC
高压直流输电系统的仿真,可以升入学习了解直流输电的基本原理和控制方式(HVDC system simulation, you can ascend to learn about the basic principles and HVDC control mode)
- 2020-12-07 23:59:20下载
- 积分:1
-
vc_matlab
多种类型在一起,我不知道如何分类了,而且需要下些东西,所以没有分开来上传,希望站长通融下,程序已经够 5个了:>
MATLAB:TD_SCDMA系统性能仿真,QAM调制,7-4编译码的实现,CAM算法仿真(simulink)
VC:huffman编译码的实现文件压缩解压缩(7-4 codec realization, CAM simulation algorithm (simulink) VC: huffman codec realize the file compression decompression)
- 2008-02-20 18:07:23下载
- 积分:1