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DETREND
近红外光谱平滑去噪算法,由于光谱仪得到的光谱信号中既有有用的信息,同时也叠加着随机误差,即噪声,而这种方法能取到很好的去噪作用。(Nir denoising smoothing algorithm, as a result of the spectrometer for spectrum signal in both the useful information, and superposition of the random error, the noise, and this method can get very good denoising effect.
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- 2013-10-03 23:38:07下载
- 积分:1
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mohuPID
模糊PID控制的matlab仿真模型,已通过试验,课成功运行,主要是用来控制机器人自动导航。(Matlab simulation model based on fuzzy PID control, has passed the test, lesson successful operation, is mainly used to control the robot autonomous navigation.)
- 2013-12-04 14:51:28下载
- 积分:1
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adaptive_filter
基于LMS的自适应滤波器的算法实现,该算法以数字调制信号为理想信号,并在已知载波频率的基础上,通过自适应滤波器实现数字调制信号的跟踪。(Adaptive Filter Based On LMS Algorithm)
- 2011-07-04 21:48:31下载
- 积分:1
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hosa
高阶谱全面分析,函数源码和工具箱.方便实用,希望大家多支持(Comprehensive analysis of high-end spectrum, function source and toolbox. Convenient and practical, I hope more U.S. support)
- 2007-09-27 08:32:59下载
- 积分:1
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Voicerecog
this code contain function and simple program for voice pattern recognition using MELCEPST
- 2010-01-01 11:25:29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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wrfquiver
matlab 画地图,非常实用,有需要的可以下载过去!(very strong!)
- 2014-01-15 15:03:53下载
- 积分:1
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xianxingsichashbianma
线性四叉树编码,包括四进制和十进制数据的编码(Linear quadtree coding, including four hexadecimal and decimal data coding)
- 2013-04-17 00:52:59下载
- 积分:1
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elm-kernel
说明: 核极限学习机,验证过可用,核极限学习机(ELM algorithm USES the kernel function, can obtain better results)(kernel-elm(ELM algorithm USES the kernel function, can obtain better results))
- 2020-11-22 20:21:35下载
- 积分:1
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clsf_dpd
rough set eighbrohood
- 2009-03-27 02:14:06下载
- 积分:1