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ofdmwirlelesslan
ofdm wireless lan document
- 2009-12-11 18:53:18下载
- 积分：1
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1
说明： 产生高斯白噪声，标准差和期望都固定，如N=f（0.1，2），这种形式的，随机产生40个(Generated white Gaussian noise, standard deviation and expectations are fixed, such as N = f (0.1,2), this form of randomly generated 40)
- 2009-07-04 14:31:32下载
- 积分：1
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xingtaixuedaima
形态学代码，腐蚀膨胀循环结构，和重构信号，几个代码，完全自己编写。(Morphological code, corrosion expansion cycle structure, and the reconstructed signal, a few code, write your own completely.
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- 2013-11-19 09:59:37下载
- 积分：1
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ZHUIzhu-moxing
追逐问题是现实生活中的常见问题,本文就三人绕正三角形的追逐问题建立起了两个数学模型:一个充分应用运动的周期性首先给出了三人共边的充要条件,然后直接给出在一个周期内三人共边的次数及起止时刻,另一个则利用初等数论的方法给出了三人共边的另一个充要条件 利用matlab长于计算和强大的绘图功能,本文分别给出了求解两个模型的matlab程序,通过动画仿真演示三人绕正三角形的追逐模型,并给出三者共边的时间起止点和共边的次数。 更多还原
(The problem is that in real life the pursuit of the common problems, the paper chase on three questions about the triangle established two mathematical models: a full application of the cyclical movement Firstly, the necessary and sufficient conditions of the three sides, and then directly within a given period of three sides of the starting and ending times and moments, and the other using elementary number theory approach gives another three necessary and sufficient conditions of the edge using matlab longer computing and powerful graphics capabilities, this paper two models are given for solving matlab program, triangle chase through animated simulation model demonstrates trio around and gives the time of the beginning and ending points of the three sides and the number of edges. More Restore)
- 2013-12-18 19:09:45下载
- 积分：1
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battery-canshu
介绍了采用电化学阻抗谱来进行锂电池的模型参数分析(lithium battery parameter estimation)
- 2014-02-10 14:25:10下载
- 积分：1
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kalman
经典的卡尔曼滤波计算，matlab的M文件实现。(The classic Kalman filter Matlab M-file implementation.)
- 2013-01-19 21:53:12下载
- 积分：1
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Wind_Turbine_Simulink
This paper represents the modeling and simulation of 2 MW Direct Drive PMSG Wind energy
conversion system (WECS). The modelling of wind turbine and PMSG is carried out in simulink to determine its
parameter. WECS consists different components namely Wind turbine, Generator, rectifier-inverter, controller
system including transformer, grid etc. The PMSG and converter model are established in the d-q model.
Keywords: PMSG, WECS, Wind turbine, rectifier, inverter, MATLAB/SIMLINK, transformer, Grid
- 2014-09-18 20:49:33下载
- 积分：1
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yy5
利用小波对信号进行消噪处理 将消噪后的信号与原始信号进行了对比(Using wavelet signal denoising processing the signal with the original signal denoised compared)
- 2012-08-22 14:32:52下载
- 积分：1
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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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matlab
偏微分方程的实用解法以及matlab的相应应用(Practical solution of partial differential equations and the corresponding application in matlab)
- 2013-04-13 23:22:18下载
- 积分：1
