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24359d1179508414-ldpc_2208

于 2011-11-26 发布 文件大小:73KB
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代码说明:

  matlab code for ldpc code

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    2008-03-26 11:10:29下载
    积分:1
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    2020-09-06 14:08:08下载
    积分:1
  • TRETE
    完美非均匀质量载荷压电薄膜,这是一个MATLAB程序,可以运行。(Perfect non-uniform mass loading piezoelectric film, which is a MATLAB program that can run.)
    2013-12-02 09:48:46下载
    积分:1
  • quadgui
    该代码展示了如何通过数值方法估计某个量值的思路,方法具有新颖之处。。。望采纳(QUADGUI Demonstrate numerical evaluation of a definite integral. Q = QUADGUI(F,A,B) shows the steps in approximating the integral of F(x) from A to B by adaptive extrapolated Simpson s quadrature. The shaded area shows the integral over the current subinterval. The color switches to green when the desired accuracy is obtained.)
    2013-10-30 15:06:48下载
    积分:1
  • sf_markov
    马尔科夫matlab目标跟踪仿真源代码,数据可靠(马尔科夫matlab目标跟踪仿真源代码)
    2009-03-17 17:07:32下载
    积分:1
  • doppler-autocorrelation
    这里有几篇有关doppler frequency offset估计问题的相关文献,主要采用的是信道响应法,自相关法,循环前缀法来估计多普勒频移的。( Here are a few questions about the doppler frequency offset estimate of the relevant literature, is mainly used in the channel response, self-correlation method, cyclic prefix to estimate the Doppler frequency shift.)
    2014-08-29 09:39:42下载
    积分:1
  • geneticTSP
    用MATLAB,采用遗传算法解决TSP问题,绝对经典!!!(Using MATLAB, using the genetic algorithm to solve the TSP problem is absolutely classic! ! !)
    2009-09-17 20:19:55下载
    积分:1
  • matlabgui
    matlab gui希望对大家用 大家可以看看(very good)
    2010-11-01 10:46:43下载
    积分:1
  • echocanc
    program with demos , very helpful in understanding the concept of echo cancellation .based on matlab used its voicebox
    2010-03-09 09:55:51下载
    积分:1
  • OFDM
    首先根据短训练字的特性进行相关运算,进行信号到达检测,当检测到相关值大于门限一定次数后,认为有信号到达。然后根据长训练字的特性,进行相关运算,进行OFDM符号FFT窗口起始位置的估计。估计出FFT窗口的位置后,先在时域进行小频偏的估计,将两个长训练字进行小频偏补偿后,进行FFT运算,根据FFT运算的结果进行整数倍频偏的估计。这些参数估计完成后,就可以进行数据解调了。先对数据部分进行完整的频偏补偿,然后根据估计的FFT窗口位置进行FFT运算得到频域的数据,进行解调。然后在对应于导频的子载波位置上提取出导频信息,根据导频信息估计出剩余定时误差以及剩余的信道响应误差,将误差量送入环路进行跟踪。当收到所有数据后,重新回到信号到达检测状态,进行下一次信号到达的检测和信号接收。(First, according to the characteristics of the short training word correlation operation, the signal reaching the detector, when the detected correlation value is greater than the threshold after a certain number of times that a signal arrives. And then the characteristics of long training word, the correlation operation for the FFT window starting position of an OFDM symbol estimate. The estimated position of the FFT window, the first small frequency offset in the time domain estimation, the two long training word small frequency offset compensation, the FFT operation, the FFT result of the operation for integer frequency offset estimate. These parameter estimation is completed, the data can be demodulated on. The first portion of the data for a complete frequency offset compensation, and based on the estimated FFT window position of the FFT operation to obtain frequency domain data, demodulated. Then corresponding to the position of the pilot subcarriers are extracted on pilot inform)
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