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123426
注水算法是根据某种准则,并根据信道状况对发送功率进行自适应分配,通常是信道状况好的时刻,多分配功率,信道差的时候,少分配功率,从而最大化传输速率。本文运用matlab通过对注水算法在mino系统中的三种不同的情况下进行了仿真,比较出在小信噪比时,相同信噪比下利用CSI的功率注水算法获得容量优于未知CSI的平均功率分配算法;相同容量下已知CSI信噪比比未知CSI时的信噪比小3dB.当信噪比增大到一定程度时,功率注水算法所获得的信道容量将收敛到平均功率分配的信道容量。(Water flooding algorithm is based on certain standards, and according to the channel condition to adaptive allocation of sending power, usually is a good moment, channel situation more distribution power, channel is poor, less power distribution, so as to maximize the transmission rate. This paper USES matlab based on water flooding algorithm in Austin system of three different cases are simulated and compared in small SNR, under the same SNR use CSI power allocation algorithm for capacity is superior to the average power allocation algorithm of unknown CSI Same capacity known CSI signal-to-noise ratio than the unknown CSI small signal-to-noise ratio of 3 db. When the signal-to-noise ratio increases to a certain degree, the power allocation algorithm for channel capacity will converge to the average power distribution channel capacity.
)
- 2013-09-03 20:28:15下载
- 积分:1
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demodulation-of-MFSK-signals
提出了一种多迸制频移键控(M娲K)信号调制分类及解调方法,选取截获接收机输出的MFSK信
号的时频脊线作为分类特征,利用无监督聚类算法求取最佳聚类数M.利用时频脊线的Ham:小波变换
估计码元宽度,并且利用对应最佳聚类数的聚类中心确定抽判门限,通过对时频脊线抽样判决,实现了
MFSK信号的解调.理论分析和对实际信号的处理结果证明了此算法的可行性.(new algorithm is proposed for elassillcation and demodulation of MFSK signals.The ridge of time—
frequency representation of MFSK signals is analyzed.Modulation elassi_fieation is realized by using the unsupervised
clustering algorithm to determine the optimal nulnllt2r of clusters.In order to demodulate MFSK signals,the Haar
wavelet transform is used to estimate the code—width and the centers of optimal clusters are used to determine
thresholds.Theoretical analysis and practical signal processing results justify the robusticity and the efficiency of the
new classification and demodulation Mgorithm.)
- 2015-05-30 19:10:23下载
- 积分:1
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SRes
this program contain a super resolution with robust method to produse high quality image from the low quality video squence.
- 2009-11-10 01:25:31下载
- 积分:1
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simpificationandreconstruction
初步学习采样和重建信号。包括源程序和报告书。(Preliminary study of sampling and reconstruction of the signal. Including the source and report.)
- 2009-11-16 15:45:45下载
- 积分:1
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UMP
考虑不平衡磁拉力作用下,转子的轴心轨迹变化求解方法。(unbalanced magnetic pull )
- 2013-11-23 20:02:29下载
- 积分:1
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111
高阶谱和双谱程序,很全,内含自己编写的若干程序(High order spectrum and power spectrum procedures, very full)
- 2013-05-05 13:50:41下载
- 积分:1
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boost
DCDC变换器模型,采用双闭环控制,电压PI外环控制输出电压,电流PI内环加快相应速度(Model of a DC-DC converter,the completion of the current loop, double closed loop control scheme of voltage outer loop.)
- 2016-06-18 20:30:43下载
- 积分:1
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matlabhelp
常用Matlab函数说明文档。收录常用全部函数。(Matlab function commonly used documentation. Indexed all commonly used functions.)
- 2008-01-13 23:06:57下载
- 积分:1
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SusanFDTD_3D
说明: 这是FDTD三维模型仿真的matlab程序(Susan FDTD 3D model )
- 2011-03-19 17:06:18下载
- 积分:1
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MatlabGUI
基于MatlabGUI的基础教学文件,包含一些基础的原理和实例,以及具体的编写方法(Based MatlabGUI the basis of teaching file contains some basic principles and examples, as well as specific preparation methods)
- 2012-05-28 18:57:33下载
- 积分:1