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wigner-and-chafen

于 2015-05-04 发布文件大小:3KB

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下载积分: 1 下载次数: 15

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第一部分是关于wigner-ville程序的三个源函数（wigner分布、伪wigner分布、平滑伪wigner分布）；第二部分是关于差分的一阶、二阶导数的子函数、源函数及表达仿真实例，这两部分都是matlab环境下源程序。(The first part is a function of three sources wigner-ville program (wigner distribution, pseudo wigner distribution, smoothed pseudo wigner distribution) the second part is about the first difference, the second derivative of the subroutine, the source function and expression simulation examples These two parts are the source matlab environment.)

文件列表：

chafen.m,386,2015-04-03
PWVD.m,1213,2015-01-23
SPWVD.m,1714,2015-01-23
WVD.m,1100,2015-01-23
yierjiechafen.m,586,2015-04-03

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zhuchengfen
主成分分析方法在各个变量之间相关关系研究的基础上，用较少的新变量代替原来较多的变量，而且使这些较少的新变量尽可能多地保留原来较多的变量所反映的信息一种方法。(Principal Component Analysis in the relationship between the various variables on the basis of the study, with fewer new variables replace the original more variable, but made them less a new variable as much as possible to retain the original variables that reflect more information methods)

2009-09-17 16:28:35下载

积分：1
OFDM-MATLAB
这里面有两个程序，两个都是采用4QAM调制。不过个人觉得第一个更容易懂，因为写的很有条理。我改的那个程序就是根据这个来的。不过在这里面有个问题就是信道系数只能是由高到低，大家可以试试，改成[0.227 0.46 0.688 0.46 0.227]这个是老师给我的仿真中常用的信道系数，这个成为归一化信道，就是系数平方和为1. 第二个程序没有涉及到信道系数，但是这个程序当中，在128个子载波中，前后有32个空载波，这个在OFDM中也是经常用的，这样可以降低误码率。 (And there are two programs, two are based on 4QAM modulation. But personally feel that the first is easier, because the writing is organized. I changed that procedure is based on the past. However, there is a problem in that there is only channel coefficients from high to low, we can try and change into [0.227 0.46 0.688 0.46 0.227] This is the teacher gave me the simulation channel coefficient commonly used, this became normalized channel, is coefficient of the square and is 1. The second program is not related to channel coefficients, but this program which, in the 128 sub-carriers, the before and after the 32 air carriers, the in OFDM is also often used, which can reduce the error rate.)

2010-10-09 17:19:06下载

积分：1
RFM
辨识所使用的数据长度保持不变，每增加一个新数据就抛掉一个老数据，使参数估计值始终只依赖于有限个新数据所提供的新消息，克服了遗忘因子法不管多老的数据都在起作用的缺点，因此该算法更能有效的克服数据饱和现象。(Identify the use of data length remain the same, every time you add a new data will throw away an old data, make the parameter estimate always depends on just co., LTD., a new data provided by the new news, overcome the forgetting factor method no matter how old data are in action shortcomings, so the algorithm can effectively overcome the more data saturation phenomenon.)

2012-12-28 15:55:52下载

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自己编写的数字滤波器工具箱，界面和功能均参照MATLAB中的FDATOOL工具箱。能实现FIR，IIR各种数字滤波器的设置。(A program designed in MATLAB GUIDE with the interface and function of FDATOOL in matlab. )

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descibes optical flow using lucas kanade algorithm. Example supplied help people understand easily

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谱估计的music算法，比较典型的谱估计方法，研究了半天才写出来的哦(The music spectrum estimation algorithm, a typical spectral estimation method to study for a long time to write it out, oh)

2009-04-20 22:14:48下载

积分：1
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2013-12-29 13:41:39下载

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wigner-and-chafen

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