Matlab-simulink-based-sigma-delta

Matlab 的图形化界面设计，主要功能包括打开一幅图像，并对其进行二值化处理，显示结果。(The GUI of matlab.It can open an image and use the method of mage binaryzation to process it.At last,give us the result.)

该程序仅针对《电力系统分析 下》何仰赞 P61 的4节点算例。 matlab程序(newton power flow calculation ,matlab)

compressive sensing theory

模拟退火算法来源于固体退火原理，将固体加温至充分高，再让其徐徐冷却，加温时，固体内部粒子随温升变为无序状，内能增大，而徐徐冷却时粒子渐趋有序，在每个温度都达到平衡态，最后在常温时达到基态，内能减为最小。 (Simulated annealing algorithm derived from solid annealing principle, the solid is heated to a sufficiently high, let it cool slowly, when heated, solid particles with temperature becomes disordered state, the internal energy increases, while slowly cooling the particles gradually increasingly ordered at each temperature to reach equilibrium, and finally reach the ground state at normal temperature, which can be reduced to a minimum.)

(1) 在某些无线信道中，多普勒频移会引起无线信道输出信号的混叠。请描述产生混叠的各种原因； (2) 无线信道中的多普勒谱有一种经典谱(classic spectrum)，请解释产生这种谱形状的机理； (3) 请用Simulink工具编写代码(S-Function方式)，产生一单径瑞利信道，其多普勒谱为经典谱，其中移动速率为120km/h。并请回答：证明自己用计算机产生的经典谱是正确的可能方法。 ((1) in certain wireless channel, the Doppler frequency shift will be caused by wireless channel output signal aliasing. Please describe the resulting aliasing of a variety of reasons (2) wireless channel Doppler spectrum there is a classical spectrum (classic spectrum), please explain such a spectral shape of the mechanism (3) Please use Simulink tools for writing code ( S-Function mode), resulting in a single Path Rayleigh channel, the Doppler spectrum for the classical spectrum, including mobile rate of 120km/h. And please answer: prove that they used computer-generated classical spectrum is correct possible ways.)

利用时域有限差分法(FDTD法)对三维时谐电磁场进行模拟(Using finite difference time domain method (FDTD method) of three-dimensional time-harmonic electromagnetic field simulation)

IEEE4,14,30,57,118,300标准使用数据(Standard data of IEEE4,14,30,57,118,300)

四节点矩形单元matlab有限元程序，使用于一般通用程序(four nodes rectangular modules Matlab finite element program, the use of common procedures in)

matlab时频联合分析工具箱，包括平滑伪维格那-维利分布SPWVD等很多时频工具(matlabtfr)

signal processing for radar such az range, doppler, gain and all fundamental feature.