DIANCICHANG

井间雷达层析速度反演开源软件包，算法快速稳定，最短路径正演+LSQR法反演。适合层析编程学习(Open source borehole georadar data processing and ray-based 2d tomography software from internet)

From the partial fraction expansion of H(z) we can find a, b

Matlab程序有限差分法\Gauss_Seidel迭代法的Matlab程序.rar(Matlab procedures finite difference method Gauss_Seidel iteration of the Matla b procedures. rar)

说明：  通过模拟电荷法计算特高压直流输电线路的标称电场(Calculation of the nominal electric field of transmission line by the method of simulated charge)

he form of the Burgers equation considered here is: du du d^2 u -- + u * -- = nu * ----- dt dx dx^2 for -1.0 < x < +1.0, and 0.0 < t. Initial conditions are u(x,0) = - sin(pi*x). Boundary conditions are u(-1,t) = u(+1,t) = 0. The viscosity parameter nu is taken to be 0.01 / pi, although this is not essential. The authors note an integral representation for the solution u(x,t), and present a better version of the formula that is amenable to approximation using Hermite quadrature. This program library does little more than evaluate the exact solution at a user-specified set of points, using the quadrature rule. Internally, the order of this quadrature rule is set to 8, but the user can easily modify this value if greater accuracy is desired.

文章简要分析了中点钳位式(NPC)三电平逆变器的基本原理,提出了一种平衡中点电位的新方法,实现了全数字化控制系统,最后通过仿真验证了该方案的正确性.(This paper briefly analyzes the basic principles of the midpoint of the three-level clamped (NPC) inverter, proposed a new method for balancing the midpoint potential, to achieve a fully digital control system, and finally through the correct simulation of the program sex.)

EMPIRICAL MODE DECOMOPOSITION PAPER

说明：  matlab入门资料 建模 优化 神经网络

本程序描绘了偶极子天线发射的电磁波在自由空间中的传播过程，动态显示。通过在边界设置一些吸收边界参数，还可以实现pec(It describles a dipole antenna how to radition its engergy via electricmagnetic wave in free space.it expresses as a cartoon.By changing its boundary conditions,we can realize PEC.)

自己搭建的MATALB仿真，波形非常理想。对学习永磁同步电机非常有帮助(MATALB build their own simulation, waveform ideal. Permanent magnet synchronous motor learning very helpful)