twobeams

matlab生成m序列的函数 原来那个效率太低，主要是因为实际应用并不需要生成太长的m序列，加入了需求长度，能有效减少运行时间。25级的移位寄存器，运行了一个小时都没有出来一周期，我仅仅需要三千bit而已。改进版：(matlab generate a function of the original m sequence that efficiency is too low, mainly because of the practical application does not require generation of long m sequences, joined the demand for length, can effectively reduce the running time. 25 of the shift register, run for an hour did not come out one cycle, I just need more than 3000 bit. Improved version:)

产生任意长度的M序列，并计算该M序列的自相关函数和功率谱密度函数。用于系统辨识(Generated sequence of random length M, and calculate the M series autocorrelation and power spectral density function. For system identification)

基于matlab的微粒群优化算法最全面的代码分享(Matlab-based particle swarm optimization algorithm is the most comprehensive code share)

关于APSK相对半径比的搜索程序，可以找出最优半径比(About APSK relative radius than the search program, you can find the optimal radius ratio)

最新的libSVM3.0版本，台湾林智仁团队编写的。(The newest version of livsvm toolbox)

语音信号处理教材中，如何训练码书，从这段程序中可以简单地看出(Speech signal processing textbooks, how to train codebook, can simply be seen from this program )

混沌时间序列Matlab源程序,包含时间序列的时间延迟计算，关联积分计算，相空间重构，时间序列分解，Heaviside函数的计算，延迟时间和时间窗口计算，混沌吸引子关联维计算，重构相空间进行K_L变换，混沌吸引子关联维计算，Hurst指数分析，关联维和Kolmogorov熵计算，FFT计算序列平均周期，最大lyapunov指数计算，利用互信息法求时间延迟，混沌和噪声识别的源程序。(Matlab chaotic time series source, time includes the time series of delay calculation, correlation integral calculation, phase space reconstruction, time series decomposition, calculated Heaviside function, the delay time and the time window calculated correlation dimension of chaotic attractors calculated reconstruction phase space K_L transform computing correlation dimension of chaotic attractors, Hurst exponent analysis, correlation dimension and Kolmogorov entropy calculation, FFT calculation sequence averaging period, maximum lyapunov index, mutual information method the time delay, chaos and noise source identification.)

地下双层均与介质正演模型程序，适用于matlab，c，c++(Underground layer are forward model with the media program for matlab, c, c++)

本文详细介绍了在VC环境下调用Matlab文件的方法，可按照说明一步一步执行(This paper introduces in detail in the VC environment call Matlab documents can follow the step-by-step implementation)

加窗快速傅里叶变化 比常规算法精度高 (Windowed fast Fourier transform algorithm for high accuracy than conventional)