Stationary_Series1_AR1

理解随机信号功率谱分析原理和方法。 (1) 生成信号，被淹没在在噪声中； (2) 试用周期图法估计信号的功率谱； (3) 选用不同窗，使用修正周期图法估计信号的功率谱； (4) 对一段语音信号，使用LD算法估计其功率谱； (5) 详细列出功率谱估计的步骤和原理。 (understanding of random signal power spectrum analysis principles and methods. (1) generate signals being drowned in the noise; (2) The probationary period plan estimates the signal power spectrum; (3), different windows, the use of map amendment cycle method to estimate the power spectrum signal; (4) a voice signal, the use of LD algorithm to estimate the gong spectrum; (5) a detailed breakdown of the power spectrum estimation steps and principle.)

Matlab Filter Implementation In this section, we will implement (in matlab) the simplest lowpass filter $displaystyle y(n) = x(n) + x(n-1), n=1,2,ldots,N $ (from Eq.$ ,$(1.1)). For the simplest lowpass filter, we had two program listings: Fig.1.3 listed simplp for filtering one block of data, and Fig.1.4 listed a main program for testing simplp. In matlab, there is a built-in function called filter3.3 which will implement simplp as a special case. The syntax is y = filter (B, A, x) where x is the input signal (a vector of any length), y is the output signal (returned equal in length to x), A is a vector of filter feedback coefficients, and B is a vector of filter feedforward coefficients. The filter function performs the following iteration over the elements of x to implement any causal, finite-order, linear, time-invariant digital filter:3.4

这是第二能量熵的matlab代码，wolf 方法计算李雅普诺夫指数,正确率可以达到98％。( This is the second energy entropy matlab code, wolf calculated Lyapunov exponent, Accuracy can reach 98 .)

说明：  CATIA V5创成式工程图设计官方文档，总共490页，很好的学习帮助(CATIA V5 generative drawing style design)

Serial communication using matlab examples

OPTIMAL BEAMFORMING MIMO MASSIVE

说明：  计算了沿CMPL厚度方向，可以看出，CMPL的界面从第一个网格移动了1/4个网格，这是为了保证，CMPL更新的电场和磁场的数目相同。(The thickness direction along CMPL is calculated.It can be seen that the interface of CMPL moves 1/4 of the grid from the first grid to ensure that the number of electric and magnetic fields updated by CMPL is the same.)

一个强大的自适应boosting算法，十分经典，matlab实现，绝对超值，可以改编成其它语言。(A powerful adaptive boosting algorithm, very classic, matlab realize, absolute value, and can be adapted to other languages​ ​ .)

说明：  空时自适应滤波，由王永良编著，是学习雷达滤波的一本好书。(Space time adaptive filter)

功放模型仿真，经过测试，数据还是比较准确的(Amplifier model simulation, tested, data is more accurate)