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CDMA中多用户相关的一些仿真研究，有相关文档及MATLAB程序可供学习(CDMA Multi-user related to a number of simulation studies, with relevant documentation, and MATLAB programs for learning)

test de la machine mada motor

说明：  三相三线并联型有源电力滤波器模型，可完美运行仿真结果。(Three-phase three-wire shunt active power filter model can run the simulation results perfectly.)

用于matlab仿真的，比较使用的系统仿真用的源代码(Matlab simulation used to compare the use of system simulation using the source code)

Carrame法求解矩阵方程组，并应用于1D光子晶体场的分析(Carrame Method matrix equations, and applied to the analysis of 1D photonic crystal field)

说明：  经典卡尔曼滤波器代码。对初学者十分有帮助。(Classic kalman filter code, for beginners introduction is very helpful.)

基于线性阵列采用波束形成技术对声源进行识别。(based on linear array and adopt beamforming to find source)

transformation of coordiantes using finite diff method

说明：  如果对实际工程结构作简化处理，建立其动力学模型，并确定系统的质量、刚度、阻尼参数，便可以用多种方法建立系统的动力微分方程。常用的方法有直接 法、影响系数法、拉格朗日法以及有限元法等。拉格朗日法是从能量的观点建立系统的动能T、势能U和功W之间的标量关系，是研究静、动力学问题的一种方法。如果在选定运动坐标以后，能够设法求得坐标相对应的质量矩阵和刚度矩阵，就可以用影响系数法建立多自由度系统运动微分方程[4]。本文采用拉格朗日法建立了1/4车辆几何模型。(If the actual engineering structure is simplified, its dynamic model is established, and the mass, stiffness and damping parameters of the system are determined, the dynamic differential equation of the system can be established by various methods. The commonly used methods are direct method, influence coefficient method, Lagrange method and finite element method. Lagrange method is a method to study the static and dynamic problems, which is to establish the scalar relation among kinetic energy t, potential energy u and work W from the point of view of energy. If the mass matrix and stiffness matrix corresponding to the coordinates can be obtained after the motion coordinates are selected, the differential equation of motion of the multi degree of freedom system can be established by the influence coefficient method [4]. In this paper, 1 / 4 vehicle geometry model is established by Lagrange method.)

谱比法对多层介质的Q值求取MATLAB程序代码(Spectral ratio of the Q value of the multilayer dielectric strike MATLAB code)