TLBO

matlabAR预估模型...matlabAR预估模型...matlabAR预估模型(matlab AR)

本matlab源代码提供了，互动峰值检波器函数。互动峰值检波器是在波动信号中检出最大幅值的装置。(Matlab source code provides the interactive peak detector function. Interactive peak detector signal is detected in the maximum amplitude wave devices.)

对信号进行短时傅里叶变换的逆变换，通过调用该函数查看信号进行处理后的时域信息(this code is used to processing the istft, and anslysis the distribution of the signal with time )

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)

4层小波分解，信号分解时域图，信号的频谱(4 layer wavelet decomposition,Signal decomposition time domain diagram,signal spectrum)

数字信号处理，LMS算法实现，简单MATLAB编程(Digital signal processing, LMS algorithm, a simple MATLAB program)

很多经典函数的图形演示，让你更直观的了解一些经典函数的模样。其中的函数可以直接用来参考应用(Many of the classic function of graphical presentation, make you more intuitive understanding of some of the classic function looks like. One of the functions can be directly used to refer to the application)

利用fft2对图像傅里叶变换，在用lpfilter生成高斯低通滤波器，进行过滤再进行反变换最后显示(Use fft2 the image Fourier transform, in with lpfilter generate Gaussian low-pass filter for filtering the inverse transform last displayed)

数值计算方法与分析，典型的算法介绍，一本知识点比较全面的书(Numerical Algorithms for the typical method of introduction, a book more comprehensive knowledge points)

microcontrollers using matlab