ovsf(spreading_one)

讲述了OFDM的一些基本知识，包含框图，及OFDM的优缺点等。对OFDM有个全面认识。(OFDM about some of the basics, including block diagram, and the advantages and disadvantages of OFDM and so on. Have a comprehensive understanding of OFDM.)

此程序为一维层状各向同性介质正演程序，输入各层电阻率及厚度，结果得到视电阻率和相位(It is a MT forward procedure about layered isotropic medium, input the resistivity and thickness of each layer, you ll get the apparent resistivity and phase)

利用BLACKMANHARRIS窗口设计一个频率采样型FIR滤波器，对一段含噪音的音乐信号进行滤波去噪处理并根据滤波前后的波形和频谱分析滤波性能。(design a frequency-sampling FIR filter utilizing BLACKMANHARRIS window to filter and de-noise some of the music signal,and analysis filtering performance based on waveform and spectral before and after filtering.)

若不希望用与估计输入信号矢量有关的相关矩阵来加快LMS算法的收敛速度，那么可用变步长方法来缩短其自适应收敛过程，其中一个主要的方法是归一化LMS算法（NLMS算法），变步长 的更新公式可写成 W（n+1）=w（n）+ e（n）x（n） =w（n）+ （3.1） 式中， = e（n）x（n）表示滤波权矢量迭代更新的调整量。为了达到快速收敛的目的，必须合适的选择变步长 的值，一个可能策略是尽可能多地减少瞬时平方误差，即用瞬时平方误差作为均方误差的MSE简单估计，这也是LMS算法的基本思想。 (Want to estimate if the input signal vector and the relevant matrix to speed up the convergence rate of LMS algorithm, then the variable step size method can be used to shorten its adaptive convergence process, one of the main method is normalized LMS algorithm (NLMS algorithm) , variable step-size update formula can be written W (n+ 1) = w (n)+ e (n) x (n) = w (n)+ (3.1) where, = e (n) x (n) the right to express filter update vector iterative adjust the volume. In order to achieve the purpose of fast convergence, we must choose the appropriate value of variable step size, a possible strategy is as much as possible to reduce the instantaneous squared error, which uses the instantaneous squared error as the mean square error MSE of the simple estimate, which is the basic LMS algorithm思想.)

希尔伯特黄变换的代码测试程序，其中主要执行test主程序(Hilbert-Huang Transform code testing procedures, which mainly perform test main program)

二维图像直方图的绘制程序，基于MATLAB(Two-dimensional image histogram mapping procedures, based on MATLAB)

加入邻域信息的空间模糊c均值聚类算法的代码。(Join neighborhood information, spatial fuzzy c-means clustering algorithm code.)

Example Frame Decoder that using Netty library

对于初学者具有参考意义，相控阵天线的方向图（切比雪夫加权），包含位置式PID算法、积分分离式PID，实现了对10个数字音的识别程序利用matlab GUI实现的串口编程例子，验证可用。(For beginners with a reference value, Phased array antenna pattern (Chebyshev weights), It contains positional PID algorithm, integral separate PID, Realization of 10 digital audio recognition program Use serial programming examples matlab GUI implementation, Verification is available.)

formant feature voice its important for extraction 14 coofeecient from lp