liziqunsuanfa

利用磁力计进行姿态估计的程序，用到了欧拉角法和四元数的方法(The use of magnetometers for attitude estimation procedures used in the Euler angle method and quaternion method)

用MATLAB编写的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、 wPqmRn函数、短时幅度差、倒谱、复倒谱 bAflVNH系数计等，是我多年调试通过的程序 (MATLAB prepared with short-term analysis of the speech signal, including: framing, short-time energy, short-term average amplitude, short-term zero rate,wPqmRn function, short-term amplitude difference, cepstrum, cepstral bAflVNH coefficient meter, etc. , is a program debugging through my years of )

RS纠错编码原理及其实现方法[第三版] 鉴于很多读者来信，特别是初学者对于如何求得RS生成多项式g[x]不是甚理解，特给出计算g[x]的MATLAB程序。(RS error-correcting coding theory and implementation methods [third edition] in view of a lot of letters from readers, especially for beginners on how to get RS to generate polynomial g [x] is not even understanding, give special calculation of g [x] in MATLAB procedures.)

Encrypt a picture using DES

计算粒子流在在反馈下驰誉时间与粒子流的关系(Particle flow in the calculation under the world-class reputation in the feedback relationship between time and the particle flow)

audio watermarking embedding and exctract

离散傅里叶变换，实现信号的频谱分析，更好地研究信号的频率分布！(Discrete Fourier transform, to achieve the signal spectrum analysis, to better study the frequency distribution of the signal! )

说明：  matlab下看地震切片的程序，配合seislab使用(matlab seismic sections look at the procedure, coupled with the use of seislab)

五点差分和九点差分和五点差分和九点差分五点差分和九点差分(Five points and nine pointsFive points and nine points)

把微分方程的一维经典初值问题的有限插分法：Euler法、改进的Euler法、Admas二步外插法、Admas二步内插法编写成通用子程序，并且利用这些通用子程序解决常微分方程的数值解。(The classical one-dimensional differential equations initial value problem of limited interpolation method: Euler method, improved Euler method, Admas outside the two-step interpolation, Admas two-step interpolation method into a general-purpose subroutine to prepare and use it to solve common subroutines Numerical Solution of Ordinary Differential Equations.)