chess20100425

快速傅里叶变换自编程序，直接运行即可，简单方便实用(Fast Fourier Transform self program can be run directly, simple and convenient and practical)

入门级代码，matlab源代码的第一部分(Entry-level code, matlab source code for the first part of the)

The video motion is estimated based on the diamond search algorithm

说明：  一阶RC等效电路电池模型，电池建模入门必备(Lithium Battery Cell - One RC-Branch Equivalent Circuit)

所建立的无刷直流电动机系统的Simulink仿真模型图，功能模块包括：逆变器模块、电源模块、换相逻辑模块、PWM信号产生模块、电动机本体模块、转速测量模块和磁极位置测量模块。(Established by the brushless DC motor system Simulink simulation model, and functional modules including: inverter module, power module, commutation logic, PWM signal generation module, motor body module, measuring module and the pole position speed measurement modules.)

it is a matlab code for stateflow.and it is c type of state flow.

模式识别中贝页斯分类器的MATLAB实现，且用不同颜色标记了分类点和错分点(pattern recognition Pui page Andean classification of MATLAB and use different color marker of separation points and the wrong points)

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 )

通过仿真表明，该算法同几种经典的分布式算法相比，不但降低了发送功率，提高了用户效用，而且有较好的收敛性能，适用于对时延特性要求较高。(Through the simulation shows that this algorithm with several classic distributed algorithm, not only reduce the sending power, improve the user utility, and has better convergence performance, suitable for time delay characteristic request is higher. )

光在格子中传播,前30为有格子，后35为无格子，描述其轨迹(propogaton in lattice for the first 30,there be in lattice and the nex 35 thera is no lattice)