EnvelopeAnalysis

本文针对SLAM算法中数据关联过程，提出了一种简单易行的改进方法，将欧氏距离与马氏距离结合用于数据关联。算法不必计算地图所有特征与所有量测之间的马氏距离，而是首先利用相对简单的欧氏距离计算缩小了待关联特征的搜寻范围。利用人工合成数据的仿真结果表明，改进后的数据关联方法可以大幅减少系统计算量，提高关联效率，且不会造成错误关联的增加。(This article SLAM algorithm for data association process, a simple method to Euclidean distance combined with the Mahalanobis distance for data association. Algorithms do not have to calculate all the characteristics of the map with all measurements between the Mahalanobis distance, but the first to use a relatively simple calculation of Euclidean distance to be associated characteristics of narrowing the search. The use of synthetic data simulation results show that the improved methods of data association can significantly reduce the system to calculate the volume and improve the efficiency of association, and will not lead to errors associated with an increase.)

数值微分通过matlab实现，对于初学者非常有用。从书上下载的源代码。(Achieved by numerical differentiation matlab, very useful for beginners. Downloaded from the book source code.)

matlab 隐写和隐写分析代码 由LFSR生成密钥的函数~可以实现正向隐写与逆向隐写分析 估计嵌入率 ~注解详细(matlab steganography and steganalysis forward steganography reverse function to generate a key code plus LFSR the steganalysis estimated embedding rate to comments in detail)

matlab开发工具箱中的支持向量机，光纤陀螺输出误差的allan方差分析，雅克比迭代求解线性方程组课设。( matlab development toolbox support vector machine, allan FOG output error variance analysis, Jacobi iteration for solving linear equations class-based.)

说明：  MATLAB在数字图像处理中，多次使用的语句，可以快速的学习数字图像处理(MATLAB in digital image processing, the repeated use of the statement, you can quickly learn digital image processing)

用于混沌时间预测与分析，经调试，可以运行(Used for prediction and analysis of chaotic time, debugging, you can run)

matlab code for averaging data time series

matlab_bgl_v2.1 里面包含了大量的matlab编程实例，为广大matlab用户提供帮助。(matlab_bgl_v2.1 it contents lots of programfile for matlab,benifit for matlab users )

灰色预测模型GM（1，n）模型的matlab源代码(Grey prediction model GM (1, n) model of the source code matlab)

阵列超声阵列个数对D的影响，仿真图显示对比(array of ultrasonic array number of D simulation chart shows the contrast)