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MODULATION
这个源程序代码包提供了通信系统中BPSK,QPSK,OQPSK,MSK,MSK2,GMSK,QAM,QAM16等调制解调方式 用matlab的实现，以及它们在AWGN和Rayleigh信道下的通信系统实现及误码率性能(The source code package provides a communication system in BPSK, QPSK, OQPSK, MSK, MSK2, GMSK, QAM, QAM16 manner, such as modulation and demodulation matlab realization, as well as their in AWGN and Rayleigh fading and realize the communication system error rate performance)
- 2021-05-16 11:30:07下载
- 积分：1
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srad
SRAD filetr for speckle reduction .This filter is a variant of anisotropic diffusion which successfully removes speckle type noise from images.
- 2020-09-09 09:08:03下载
- 积分：1
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spectrometer
matlab function that is written in matlabbb
- 2009-11-25 10:09:53下载
- 积分：1
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matlab-on-scientific-computing
matlab在科学计算上的应用教程，适用于初学者(matlab tutorial on scientific computing for beginners)
- 2012-05-01 21:39:32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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transportation
预测交通客流量，通过前20年的公交数据，预测今后5年的公交客运量。(Forecast traffic traffic through the first 20 years of public transit data, to predict the next five years passenger transport.)
- 2012-06-08 00:10:56下载
- 积分：1
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introduction-to-matlab
The purpose of this document is to help beginners in Matlab by introducing
the most common commands.
- 2015-02-06 01:28:58下载
- 积分：1
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OTSU
大津法确定图像二值化阈值,为MATLAB语言编写的M文件, 可直接使用(Otsu method to determine the threshold image binarization)
- 2013-03-09 16:29:30下载
- 积分：1
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kalman
数字信号处理中 卡尔曼滤波器的 模拟 matlab(kalman fliter matlab)
- 2011-12-13 20:34:13下载
- 积分：1
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7-core
这是七芯光纤的耦合matlab程序，7根芯子可以自己设定部分通光，也可以全部通光；芯子的折射率也可以不一样。(This is a seven-core optical fiber coupling matlab program, seven core can set their own section through light, you can pass all the light the refractive index of the core may not be the same.)
- 2020-10-19 19:07:25下载
- 积分：1
