gas-carburizing-simulation

说明：  大量的编程，相信对于大家来说是很有帮助的呀！(lot of programming, and I believe everyone is very helpful!)

维波动显格式计算程序，本程序采用有限差分法来计算二维波动问题(Two-dimensional wave the explicit calculation program, this program USES the finite difference method to calculate the two-dimensional wave problem )

用matlab对图像进行诸如显示图像、添加颜色条、单帧显示、多帧显示、动画显示、灰度图像的动画显示、纹理映射等方面的基本操作源代码（matlab7环境下）。(Basic code or command for image process in matlab 7.)

说明：  采用正测式合成孔径成像雷达的信号处理仿真算法，可以用于初学者仿真，和工程设计中(Is measured by synthetic aperture imaging radar signal processing simulation algorithm can be used for beginners simulation, and engineering design)

说明：  Rosen梯度法求解约束多维函数的极值用matlab实现(Rosen gradient method for solving constrained multi-dimensional realization of the function extreme value with matlab)

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.)

对于初学者用matlab画图很有帮助，能迅速熟练掌握matlab作图方法(it is bery helpful for beginners to learn Matlab drawing ,with it you can quickly master the mapping method of matlab)

三电平逆变器可以采用PWM控制或者SVPWM控制(three level inverter which can use pwm control)

说明：  通过matlab实现对二值图像的轮廓跟踪(Realized through the matlab binary image contour tracing)

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 )