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CurveFittingguide
matlab曲线拟合工具箱使用说明，可以直接得到拟合曲线的表达式。(matlab_curve)
- 2021-02-19 17:59:44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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MicroWind2
MicroWind第2代，著名的微电子开发软件的教学版，适用于一般教学和入门级使用(MicroWind second generation, the famous microelectronics development of teaching software version applies to general teaching and the use of entry-level)
- 2005-05-10 09:59:40下载
- 积分：1
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sanjiao
一个产生PFM的simulink模型，可以改变占空比与频率(generating repeating sequence)
- 2021-01-12 00:38:49下载
- 积分：1
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ConvexCombination
Convex Combination with fuzzy sets. this code demonstrate the acomplishment of the requirements of two fuzzy sets to make a convex combination.
- 2014-08-22 11:58:17下载
- 积分：1
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dcopf2383
结合MATPOWER的节点数据，计算直流最优潮流的算法(Algorithm for calculating DC optimal Power flow)
- 2020-11-15 11:19:41下载
- 积分：1
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dsss3
介绍了直接序列扩频通信的理论基础和模型,并通过MATLAB提供的Simulink仿真平台对直扩通信系统进行了仿真。()
- 2008-05-13 14:49:07下载
- 积分：1
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equalizerforLMS
equalizer for LMS algorithm
- 2013-05-10 17:42:12下载
- 积分：1
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lvboqi
巴特沃斯滤波器设计，双线性变换法，代码不是很长……(Butterworth filter design, bilinear transformation method, the code is not very long ... ...)
- 2009-03-14 15:42:24下载
- 积分：1
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BLDC_08
Position Control of BLDC motor
- 2009-04-01 21:03:59下载
- 积分：1
