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shili100
制作运用Broyden迭代法解线性方程组的用户界面(Making Broyden iteration method by solving linear equations of the user interface
)
- 2011-06-28 10:18:31下载
- 积分：1
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contour
This code enables to make contours.
- 2013-02-08 15:01:39下载
- 积分：1
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music
利用music算法进行谱估计的MATLAB程序(Music algorithm for spectral estimation MATLAB program)
- 2012-11-06 20:28:15下载
- 积分：1
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Simpletwopathmultipthefadingchannel
Simple two path Rayleigh fading channel
- 2011-01-10 19:52:52下载
- 积分：1
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OFDM rece matlab
接收端采用的算法和程序流程与发送端发送的OFDM符号的帧结构有关系。具体的帧结构，以及定时估计，频偏估计，剩余误差跟踪的算法可参考算法说明文档。这里对程序的流程进行说明。
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。
(The receiving end uses the algorithm and the program flow and the frame structure of the OFDM symbol transmitted by the sending end. Specific frame structure, and timing estimation, frequency offset estimation, residual error tracking algorithm can refer to the documentation. Here to illustrate the process of the program.
First, according to the characteristics of the short training word correlation operation, the signal reaches the detection, when the correlation value is greater than the threshold of a certain number of times, that there is a signal to reach. Then, according to the characteristics of the long training word, the correlation operation is carried out, and the initial position of the OFDM symbol FFT is estimated. The estimated position of the FFT window, first in the time domain for small frequency offset estimation, two long training word for small frequency offset compensation, the FFT operation. According to the result of FFT for integer frequency bias estimation. Af)
- 2020-11-05 00:19:52下载
- 积分：1
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wave
小波变换相关方法的MATLAB实现，可以在同地幅图像中显示四幅不同的波段，包括三个高频和一个低频。(MATLAB Wavelet Transform Correlation method implemented in the same way images can be displayed in four different bands, including three high and one low-frequency.)
- 2009-11-18 10:02:07下载
- 积分：1
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matlab
说明： 算差分盒维数的matlab程序。 让窗口中的每个像素都对分数维作出贡献。首先,计算某一尺度窗口的平均灰度值 ,然后判断每一个像素的灰度 ,若大于灰度平均值 ,则累加其灰度值为 max ,若小于灰度平均值 ,则累加其灰度值为min ,用max 和min代替 在 Sarkar 和 Chaudhuri 算法中的最大值和最小值 ,再通过拟合求出分数维。 (Differential count box dimension matlab program. Let window on the fractal dimension of each pixel to contribute. First, the calculation of an average gray scale of the window, and then determine the gray scale of each pixel, if the intensity is greater than the average, the cumulative value of its gray max, if less than the average gray level, the accumulation of its gray value of min, max and min to use instead of the algorithm in Sarkar and Chaudhuri maximum and minimum, and then by fitting the calculated fractal dimension.)
- 2010-04-13 00:46:08下载
- 积分：1
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fir
关于DSP方面的FIR滤波器的设计的matlab程序。(On the DSP' s FIR filter design matlab program.)
- 2010-08-03 10:53:35下载
- 积分：1
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aboutfuzzyzhou
说明： matlb的模糊控制的实现，他是控制类专业的很好的学习模糊控制的参考(matlb fuzzy control, and the types of control he is a good professional learning fuzzy control of the reference)
- 2005-12-06 00:32:07下载
- 积分：1
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Fitz_LR
fitz 及 lr fr 频偏估计 matlab函数 可直接应用 并附有简单的主程序(fitz and lr fr frequency offset estimation matlab function can be applied directly with a simple main program)
- 2020-12-15 09:49:13下载
- 积分：1
