zone

粒子滤波算法在非线性系统中得到了广泛的应用，其精度取决于目标概率函数和重要性函数是否相近，并且样本退化问题也影响了算法的性能。针对粒子滤波算法中样本退化的问题，本文提出一种基于奇异值分解的粒子滤波算法。该算法通过使用奇异值分解方法得到的重要性概率密度函数更接近于目标概率分布，降低样本退化的影响，提高了滤波器的精度，然后在列车组合定位系统的数学模型中应用该算法进行仿真实验。 (Particle filter algorithm for nonlinear systems is widely used, its accuracy depends on whether the target probability function and importance of the functions are similar, and sample degradation also affects the performance of the algorithm. For particle filter algorithm sample degradation problem, this paper proposes a particle filter algorithm based on singular value decomposition. The algorithm by using singular value decomposition of the importance of the probability density function method to get closer to the target probability distribution, reduce sample degradation, improve the accuracy of the filter, and then apply the algorithm in combination mathematical model train positioning system simulation experiments. The simulation )

Logistic映射，图像信号加密和解密，异或算法进行(Logistic mapping, image signal encryption and decryption algorithms XOR)

There are 19 questions and 1 programming exercise. Some of them are very easy, some of them are really hard and challenging, and these will be marked as such. If you don’t want to be challenged too much, you can skip the hard questions

说明：  用遗传算法对神经网络的权值进行优化，用MATLAB编程实现(Neural network using genetic algorithm to optimize the weights, using MATLAB programming)

Ebook-Intro to Matlab and simulink

说明：  该书的英文版是国外电子信息类优秀教材，国内外很多学校采用它作为教材，基本上是学习matlab的经典和权威书籍了，但是中文修正版没有（虽然是网友自己翻译的），但还不值得一看的。(The English version of the book is the best type of foreign electronic information materials, both at home and abroad, many schools use it as teaching material, is basically a classic learning matlab and authority of books, but there is no Chinese version of the amendment (although the users own translation), but also not worth a visit.)

stochastic geometry simulation matlab code: sp-program

在MATLAB上用R-K法编程解一次导数方程 有详细的注释(RK method used in the MATLAB programming solution on the first derivative of equation has detailed notes)

这是一个关于部分傅立叶变换的Matlab程序，有事没问题，大家共同讨论啊 ！(This is a Fourier transform on the part of the Matlab program, something no problem, we discuss ah!)

提供了OFDM系统中的几项关键技术，并提出了解决方法(OFDM system provides a number of key technologies, and proposed solutions)