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basic_operation
在GUI中实现实现灰度转化，二值化处理及求反，加噪音和中值滤波(To convert an RGB image to a gray-scale image, binary image, add noise and filtering)
- 2011-12-13 21:13:06下载
- 积分：1
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OFDMcode
OFDM的matlab仿真源程序，非常详细。(Matlab simulation of OFDM-source, very detailed.)
- 2008-04-05 20:51:56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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Photonic-Simulation-Software-Tools-for-Education
Characterization of Raman-assisted Fiber Optical
Parametric Amplifiers Gain
- 2013-07-01 23:37:12下载
- 积分：1
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计算多层膜的反射率Reflect
计算多层膜的反射率，可计算不同的偏振态。各个膜层的厚度和折射率可以自己设置。(multilayer,optical film,reflection)
- 2015-08-22 14:59:46下载
- 积分：1
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pouqei
单径或多径瑞利衰落信道仿真，使用高阶累积量对MPSK信号进行调制识别，考虑雨衰 阴影 和多径影响。( Single path or multipath Rayleigh fading channel simulation, Using high-order cumulants of MPSK signal modulation recognition, Consider shadow rain attenuation and multipath effect.)
- 2016-04-25 15:18:02下载
- 积分：1
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pade_R_Oder
PADE降阶MATlab程序 降阶后的分子分母次数可以随意的给定(PADE reduction MATlab numerator and denominator after reduction procedure can be arbitrary given the number of)
- 2011-05-19 18:25:19下载
- 积分：1
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qiangdudazuoye
北航强度大作业,包括两道题，代码、程序都是做好的，请放心使用(The Beihang intensity operations, including two title, code and procedures do a good job, ease of use)
- 2012-06-03 00:15:22下载
- 积分：1
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The-application-of-semivariogram
半变异函数的应用拟合球状模型程序
在土壤重金属分析中的应用(The application of semivariogram spherical model fitting procedure in analysis of soil heavy metals)
- 2011-10-17 21:28:39下载
- 积分：1
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rotate_platf
ISAR运动补偿逆合成孔径雷达运动补偿逆合成孔径雷达(ISAR motion compensation ISAR motion compensation inverse synthetic aperture radar)
- 2014-01-07 12:57:46下载
- 积分：1
