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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)
- 2020-11-04 23:49:52下载
- 积分：1
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model19th
这是Sorensen等人提出人体血糖-胰岛素模型，依据偏微分方程组搭建的simulink仿真模型。(This simulink model is based on the theory of Sorensen team, which is the blood glucose regulation mechanism of hunman.
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- 2013-12-05 09:47:50下载
- 积分：1
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2d-logistic-regression-demo
2d logistic regression demo
- 2014-02-20 12:04:00下载
- 积分：1
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BPSKAWGN
加性高斯噪声信道下BPSK信道估计，matlab程序，做得还比较好！希望能帮助你们！(AWGN channel under BPSK channel estimation, matlab procedure done better! To help you!)
- 2009-05-08 23:36:26下载
- 积分：1
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orrule_under_different_SNR
matlab环境下对使用or规则的融合判决算法的性能仿真(matlab environment, regulations on the use or performance of the fusion decision algorithm simulation)
- 2011-05-20 10:59:19下载
- 积分：1
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Chapter-23--Modern-optimization
关于启发式算法的简单介绍以及实例应用分析(A brief introduction of Heuristic with examples.)
- 2011-08-23 21:28:52下载
- 积分：1
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Desktop
人工加入椒盐噪声，进行中值滤波去噪,可以自己加入不同密度的椒盐(Artificial adding salt and pepper noise, median filtering denoising, you can add your own salt and pepper different densities)
- 2015-04-17 10:21:09下载
- 积分：1
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CapacityModel_2
说明： 通过电池容量的估计，来计算电池的健康状况，在Simulink中搭建模型(state of health estimation,simulink)
- 2021-04-19 09:08:51下载
- 积分：1
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00654018(2)
an article about a dvr simulation
- 2011-05-11 05:02:51下载
- 积分：1
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PCA_LDA_LPP_Tensor
PCA/LDA/LPP/TensorLPP/代码。
LPP是目前一种比较重要的子空间算法。基于Tensor的子空间算法，是传统PCA/LDA算法的进一步推广，具有重要意义。(PCA/LDA/LO/TensorLPP/code. Alignment is a more important subspace algorithm. Based on the Tensor subspace algorithm, is a traditional PCA/LDA further promote algorithm is of great significance.)
- 2007-04-09 16:18:23下载
- 积分：1
