fBm_matlab

Code for design of derivative fillters

模拟退火算法源程序,希望对大家有帮助，好的话大家多好评(Simulated annealing algorithm source code)

这是一篇关于ml和map的超分辨率重建算法的文档，详细介绍了经典map重建算法和基于参数估计的算法。(map,super-resolution )

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)

用改进的PTS方法降低OFDM信号中高PAPR的MATLAB仿真源代码，(A Modified Genetic Algorithm PTS Technique for PAPR Reduction in OFDM Systems )

地震勘探动校正程序，地震勘探中的常规处理(NMO code for seismic exploration, conventional processing in seismic exploration.)

OFDM系统仿真，信号采用卷积编码和交织技术、采用16-QAM和QPSK两种调制方式，干扰分别采用多径衰落和瑞利衰落两种。(OFDM system simulation, signal the use of convolutional coding and intertwined technology, using 16-QAM and QPSK modulation in two ways, interference were used to multipath fading and Rayleigh fading two.)

COFDM系统在不同调制方式（BPSK/QPSK/16PSK）下的PPCR和BER的比较。不含噪声和多径(COFDM modulation system in different ways (BPSK/QPSK/16PSK) under the PPC R and BER comparison. Without noise and multipath)

适用于matlab 的图形旋转代码，可自定义旋转角度，使用邻近插值不全图像(Applicable to matlab graphical rotation code, the rotation angle can be customized using the neighbor interpolation incomplete picture)

基于matlab的小波神经网络的时间序列计算，欢迎大家使用。(Time series matlab wavelet neural network-based computing, welcome everyone to use.)