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该代码实现产生一个窄带随机信号，该信号的自相关函数及其功率谱图形。(The code generates a narrow-band random signal, the autocorrelation function and power spectrum graphics.)

归一化自适应算法，是正弦信号的不是语音信号的！欢迎下载使用！(Normalized adaptive algorithm, is not sinusoidal signal of speech signals! Welcome to download! )

基于lms_newton算法的回波消除，直接可以使用(Based lms_newton echo cancellation algorithm, can be used directly)

使用PSO算法来求解状态估计，测试算例为IEEE 33 test case，效果不错。(Distribution State Estimation (DSE) by using PSO algorithm)

双参数的双门限语音端点检测程序MATLAB代码 可直接运行(Two parameters of the double threshold endpoint detection procedures MATLAB code can be directly run)

粒子群算法及其改进，在原有粒子群算法基础上进行改进，增加免疫算法，使其尽快跳出早熟，收敛更快，结果更优！(Particle swarm optimization (PSO) and its improvement are improved on the basis of the existing particle swarm algorithm, and the immune algorithm is added to make it jump out of premature, faster convergence and better results)

切比雪夫插值（利用切比雪夫点进行多项式插值），对连续函数进行逼近。(Chebyshev interpolation (using Chebyshev polynomial interpolation points), for continuous function approximation)

说明：  用正弦波叠加的方式生成一个最简单的 Rayleigh Fading Process ，具有 Doppler Frequency 。(Sine wave superimposed with the easiest way to generate a Rayleigh Fading Process, with Doppler Frequency.)

说明：  matlab图像处理函数............(for matlab user to )

循环平稳信号工具，包括自相关函数和7个实验，以及算法的解释(Cyclostationary signal instruments, including the self-correlation function and the experimental)