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channel_jake
Jakes channel simulation
- 2009-03-17 15:16:24下载
- 积分：1
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fil
it is a term paper in filipino language
- 2010-01-28 20:17:20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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hyzs
介绍了一种海洋环境模拟新方法，对海洋环境噪声的模拟简便准确(Introduces a new method of ocean environment simulation, simulation of ocean ambient noise simple and accurate)
- 2015-03-13 23:49:54下载
- 积分：1
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3dim-dipole-in-freespace
本程序描绘了偶极子天线发射的电磁波在自由空间中的传播过程，动态显示。通过在边界设置一些吸收边界参数，还可以实现pec(It describles a dipole antenna how to radition its engergy via electricmagnetic wave in free space.it expresses as a cartoon.By changing its boundary conditions,we can realize PEC.)
- 2011-10-29 11:29:32下载
- 积分：1
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GPSR_6.0
GPSR_6.0 工具器，梯度投影法CS恢复，很有用的(GPSR_6.0)
- 2010-08-12 11:02:04下载
- 积分：1
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SAR1
雷达采用匹配滤波完成脉冲压缩，采集频率fs=420MHz,仿真雷达回波，并绘出加Hamming窗前后的脉压波形。目标如图所示由(-5，-2)，(0，5)和(6,-7)三个散射点组成,散射强度分别为（1，2，5）,雷达位于（-5000,0）处(The completion of the radar pulse compression using matched filtering, collecting the frequency fs = 420MHz, simulation of the radar echo, and draw the Hamming window plus post-pulse pressure waveform. Targets as shown by (-5,-2), (0,5) and (6,-7) three scattering dots, scattering intensity, respectively (1,2,5), radar at (-5,000, 0), Office of)
- 2009-12-07 16:35:47下载
- 积分：1
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ChaosToolbox
MATLAB环境下开发的混沌理论的工具箱，包含各种实例，学习混沌理论的好帮手(Chaos theory toolbox, matlab )
- 2010-01-21 10:48:47下载
- 积分：1
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Intersect
AE开发，InterSect操作AE开发，InterSect操作AE开发，InterSect操作AE开发，InterSect操作(ArcEngine for intersect tool)
- 2015-03-18 21:56:31下载
- 积分：1
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A201003-1461
压缩感知基本理论：回顾与展望A201003-1461(Advances and Perspectives on Compressed Sensing Theory
)
- 2014-02-04 17:46:10下载
- 积分：1
