chapter1

说明：  很好的讲述了matlab的基础知识，使你可以更好的学习、入门。欢迎大家学习与交流。(Good about the basics of matlab, so you can better learn, get started. Welcome to the learning and exchange.)

block turbo codes matlab

OFDM系统接收机移除循环前缀，代码本人亲自撰写，如有疑问可讨论之(the rx_move_cyclic_prefix function of the OFDM system)

Gmapping for slam alogrithm

将角度和幅度的二维数组画成dB值的polar图( POLARDB Polar coordinate plot. POLARDB(THETA, RHO) makes a plot using polar coordinates of the angle THETA, in radians, versus the radius RHO in dB. The maximum value of RHO should not exceed 1. It should not be normalized, however (i.e. its max. value may be less than 1). POLAR(THETA,RHO,S) uses the linestyle specified in string S. See PLOT for a description of legal linestyles. )

wind power systems with permanent magnet generator in matlab

La señ al x(t) = 2 cos(11.200πt) + 2cos (10.000 πt) cos (1.000 πt) se suma a una señ al de ruido blanco (coloreado) gausiano de banda limitada con media igual a cero y con una densidad espectral de potencia de 1 µ w/Hz hasta una frecuencia de 15.000 Hz y cero a frecuencias mayores.

说明：  数值分析中的一个算法的实现，实现局部最优解。(A numerical analysis algorithm, to achieve local optimal solution.)

说明：  详细说明：语音信号的短时分析，主要包括：分帧、短时能量、短时平均幅度、短时过零率、短时自相关函数、短时幅度差、倒谱、复倒谱、lpc系数、lpc谱估计等 绝对保证质量，是保研后导师布置的一些基础程序(Details: short-time speech signal analysis, including: framing, short-term energy, short-term average rate, short-time zero crossing rate, short-time autocorrelation function, short-term magnitude difference, cepstrum, complex cepstrum, lpc coefficient, lpc absolute guarantee of the quality of spectral estimation, is the security arrangement of some of the research base after the mentor program)

菲涅耳衍射的程序，对于研究物理光学或者应用光学的科技工作者应该有所帮助(Fresnel Diffraction procedures for studying physics of optical or optical technology should help workers)