earthquake

This is modeling of DCmotor and current control with PI controller and speed control with PI controller.

说明：  本书为国外经典Matlab电子书籍。本书详细介绍了Matlab编程的基本原理和方法。是初学者的最佳指导用书。(Matlab book e-books for foreign classics. Matlab programming book details the basic principles and methods. Is the best guide book for beginners.)

对阵列进行二维谱分析时使用, 用于信号估计,阵更信号处理(Spectral analysis of two-dimensional array used for signal estimation, array signal processing is more)

chebyshev 2值量化辛辛苦苦的编程 奉献给大家 ，愿大家在混沌序列上共同提高(chebyshev 2 value quantization laboriously programming dedicated to you, everyone is willing to jointly improve the chaotic sequence)

Toeplitz 修正处理的music算法。可以提高低信噪比和低采样率下的分辨率。(Toeplitz correction algorithm processing of music. Can improve the signal to noise ratio and low resolution low sampling rates.)

经典的国外bitshop关于机器学习和模式识别教程，全是英文，内容详细(Classic foreign bitshop tutorial on machine learning and pattern recognition, all in English, detailed)

Matlab与C语言程序的应用编程接口 在unix下写socket程序可能是最方便，只要掌握其一般步骤，就可以松的写出面向传输层的应用。(Matlab and C language programming in the application programming interface to write socket program under unix is probably the most convenient, as long as the master of its general steps, you can write a song-oriented transport layer of the application.)

front tracking method for free surface or structure movement.

说明：  目前，以空间调制(Spatial Modulation，SM)、广义空间调制(Generalized Spatial Modulation，GSM)为代表的新型MIMO技术，成为4G以及5G的关键技术。空间调制系统在一个符号周期内，发送端只选择部分发送天线发送信号，从而大大提高了频谱效率，是大规模MIMO系统的重大突破。(At present, the new MIMO technology represented by spatial modulation (SM) and generalized spatial modulation (GSM) has become the key technology of 4G and 5g. In a symbol period, the transmitter only selects part of the antenna to transmit the signal, which greatly improves the spectral efficiency. It is a major breakthrough in large-scale MIMO systems.)

这是个智能天线系统，被设计成主波束面向用户，背对干扰用户(This is a smart antenna system, the main beam is designed for users to turn their backs on the user interference)