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autofam.m
FAM Method. This Method compute spectral correlation density function. This method is based on modifications of time smoothed cyclic cross periodogram.
- 2011-02-11 05:51:27下载
- 积分:1
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pinpufenxi
本程序仿真了信号与系统中的频谱混叠,频谱泄漏和栅栏现象,包含三个文件:pinpufenxi.m, pinpufenxi.fig和一份word简介文档。(the process of signal simulation system with a spectrum-aliasing, spectrum leakage and fencing, contains three documents : pinpufenxi.m, pinpufenxi.fig and a brief word document.)
- 2006-06-09 00:26:18下载
- 积分:1
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dingwei
基于MATLAB实现心音信号中的第一心音和第二心音的定位(Realized by MATLAB first heart sound heart sound signal and the positioning of the second heart sound)
- 2013-04-16 10:41:42下载
- 积分:1
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bcsk
这是BCSK Simulation for AWGN & Rayleigh Channels, 详细的算法说明见程序注释. (This is BCSK Simulation for AWGN )
- 2007-11-27 00:24:01下载
- 积分:1
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pre_affectation_s1_2014-2015
feature selection using genetic algorithm
- 2014-09-25 05:23:49下载
- 积分:1
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caeser1
Decryption algorithm of caeser which generate all possible combinations
- 2011-10-17 08:56:09下载
- 积分:1
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EE_497_3_cooprelay
This shows that relay power is an important criterion which decides the gain we get from simple relaying as compared to direct transmission.
- 2011-10-23 22:23:54下载
- 积分:1
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sinorder
为sinudoidal模型的AIC阶估计.AIC信息准则即Akaike information criterion,是衡量统计模型拟合优良性的一种标准,又由于它为日本统计学家赤池弘次创立和发展的,因此又称赤池信息量准则。它建立在熵的概念基础上,可以权衡所估计模型的复杂度和此模型拟合数据的优良性。
在一般的情况下,AIC可以表示为: AIC=2k-2ln(L)
其中:k是参数的数量,L是似然函数。 假设条件是模型的误差服从独立正态分布。 让n为观察数,RSS为剩余平方和,那么AIC变为: AIC=2k+nln(RSS/n)
增加自由参数的数目提高了拟合的优良性,AIC鼓励数据拟合的优良性但是尽量避免出现过度拟合(Overfitting)的情况。所以优先考虑的模型应是AIC值最小的那一个。赤池信息准则的方法是寻找可以最好地解释数据但包含最少自由参数的模型。(AIC order estimation for sinudoidal model)
- 2013-12-05 13:18:54下载
- 积分:1
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b
说明: :DBSCAN是一个基于密度的聚类算法。该算法将具有足够高密度的区域划分为簇,并可以在带有“噪声”的空间数
据库中发现任意形状的聚类。但DtLqCAN算法没有考虑非空间属性,且DBSCAN算法需扫描空间数据库中每个点的e一
邻域来寻找聚类,这使得DBSCAN算法的应用受到了一定的局限。文中提出了一种基于DBSCAN的算法,可以处理非空
间属性,同时又可以加快聚类的速度。(: DBSCAN is a density-based clustering algorithm. The algorithm has a sufficiently high density area is divided into clusters, and to be with the " noise" found in the spatial database clusters of arbitrary shape. But DtLqCAN algorithm did not consider non-spatial attributes, and spatial database DBSCAN algorithm to be scanned for each point e in the neighborhood to find a cluster, DBSCAN algorithm which makes the application subject to certain limitations. In this paper, an algorithm based on DBSCAN can handle the non-spatial attributes, can also speed up the clustering speed.)
- 2010-12-06 16:38:45下载
- 积分:1
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8.6
主要用途是对抗多径衰落。由于多径衰落的存在,使得同一个帧由于路径不同,到达用户端的时延有先有后。在相关的频域上的会造成子载波之间的相互干扰,影响 性能。另外,由于有了循环前缀,使得IFFT FFT操作把原来的线性卷积变成循环卷积,大大简化了相应的信号处理复杂度(Graduate study do not to upload copyrighted controversial content and Trojan code and agent software to access foreign sites)
- 2012-08-24 15:11:10下载
- 积分:1