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BP
说明: 一种改进的BP算法 MAtlab运用于预测(An improved BP algorithm is applied to predict MAtlab)
- 2010-08-26 12:50:02下载
- 积分:1
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MATLAB
产生长度为1000的标准正太分布的随机信号,画出时域波形及频谱;
采用u=255的非均匀PCM编码,每符号为8bit,画输入-输出关系图;
计算信号量化噪声比(SQNR);
信道误码率为10-3;
解码,并画出u律反变换后的信号时域波形及频谱。
扩展要求:
采用均匀PCM、量化级数可变、信道误码率可变。
( have a standard length of 1000 is too random signal distribution, draw time-domain waveform and frequency spectrum u = 255 using the non-uniform PCM encoding, each symbol for 8bit, drawing input- output relationship diagram calculated quantization noise signal than (SQNR) channel bit error rate of 10-3 decoder, and law to draw u the signal after the inverse transform time-domain waveform and frequency spectrum. Expansion of the requirements: uniform PCM, quantization level variable, a variable channel bit error rate.)
- 2009-07-07 01:35:25下载
- 积分:1
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Heston
Heston Model option pricings and comparison(Compares the option prices obtained using the analytical Heston formula (1993) and the FFT method (Carr-Madan formula via FFT+ Simpson s, Carr-Madan using adaptive Gauss-Kronrod quadrature, and Lipton s formula using adaptive Gauss-Kronrod quadrature).)
- 2013-08-18 09:21:44下载
- 积分:1
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H.248
介绍有关H.248的内容 相当有用 价值比较高(H。248)
- 2009-11-19 20:49:19下载
- 积分:1
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edgedemo
edge detection.Real-time Canny/Sobel edge detection. Requires: Matlab Image Proc. Toolkit liveimagejpg.m . Tested: Matlab version 7.0 (linux)
- 2011-01-14 18:51:29下载
- 积分:1
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Gabor
(注意,之前上传的Fea_Gabor_brodatz有误)该代码为用gabor变换算法提取图像的纹理特征,用matlab编写,可应用于基于纹理的图像检索系统。其中还包含一篇gabor变换相关的文献(The code for the transformation algorithm using gabor texture features extracted using matlab preparation, can be applied to image retrieval system based on texture)
- 2010-07-05 10:28:15下载
- 积分:1
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timefrequencyanalysis
短时fourier变换 tfrstft计算离散信号x(t)(Short-time fourier transform discrete signals tfrstft computing x (t))
- 2007-11-12 21:39:56下载
- 积分:1
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face-towards
LVQ神经网络的预测——人脸朝向识别,MATLAB的经典算法(LVQ neural network prediction- face towards the identification, MATLAB classical algorithm)
- 2013-10-20 00:01:43下载
- 积分:1
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hht
hilbert-huang 变换的源码 蛮有用的(hilbert-huang transform source quite used)
- 2008-01-03 18:57:32下载
- 积分:1
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OFDM-MATLAB
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。(failed to translate)
- 2020-11-04 22:59:52下载
- 积分:1