dsp3

This is a matlab code. It is used to create a circle in matlab. It is very interesting. Apply this.

为了提高发动机怠速过程的稳态和动态特性，采用 MATLAB/Simulink 软件对发动机怠速系统进行模拟仿真。(In order to increase the engine idling steady state and dynamic characteristics, using MATLAB/Simulink software engine idling system simulation.)

介质层间反射系数及其透射系数的求解，此处是二分之一匹配层结构(Dielectric layer between the reflection coefficient and transmission coefficient of the solution)

说明：  matlab R2012a 超级学习手册随书源代码(Matlab R2012a Super Learning Manual with Book Source Code)

说明：  室内定位计算.各种定位算法的性能分析，对比结果(room location caculated)

计算球体重力异常G,以及2阶导数，3阶导数的matlab 程序(Sphere calculated gravity anomaly G, and 2-order derivative, 3-order derivative matlab program)

因子分析是指研究从变量群中提取共性因子的统计技术。最早由英国心理学家C.E.斯皮尔曼提出。因子分析可在许多变量中找出隐藏的具有代表性的因子。将相同本质的变量归入一个因子，可减少变量的数目，还可检验变量间关系的假设。(Factor analysis is the study of common factors extracted from the variable group statistical techniques. First proposed by British psychologist CE Spearman. Factor analysis can identify a representative factor to hide many variables. Will be essentially the same variables into one factor, can reduce the number of variables, but also test the hypothesis that the relationship between variables.)

风机 直驱永磁同步风力发电机 最大功率跟踪 自己搭的永磁发电机模型(Fan Direct-drive permanent magnet synchronous wind turbine Maximum power tracking Self-rigid permanent magnet generator model Suitable for beginners to learn)

E=input( enter the generator voltage: ) V=input( enter the infinite bus voltage: ) Gx=input( enter the reactance of generator: ) L1x=input( enter the line reactance: ) L2x=input( enter the line reactance: ) L3x=input( enter the line reactance: ) L4x=input( enter the line reactance: ) Pi=input( enter the input power: ) X1=Gx+L1x+((L2x*L3x)/(L2x+L3x))+L4x Pm1=E*V/X1 DO=asin(Pi/Pm1) A=((L2x*L3x)/(2*(L2x+L3x))) C=A B=((L3x/2)^2)/(L2x+L3x) X2=(Gx+L1x+A)+(L4x+A)+(Gx+L1x+A)*(A+L4x)/B Pm2=(E*V)/X2 X3=Gx+L1x+L2x+L4x Pm3=(E*V)/X3 DC=input( enter the fault clearing angle: ) Dm=(3.14-asin(Pi/Pm3)) a1=quad( sin ,DO,DC) A1=(Pi*(DC-DO)-Pm2*a1) a2=quad( sin ,DC,Dm) A2=Pm3*a2-Pi*(Dm-DC) if(A2>=A1) disp( the system is stable ) else disp( the system is unstable ) end Dcc=acos((Pi*(Dm-DO)-Pm2*(cos(DO))+Pm3*(cos(Dm)))/(Pm3-Pm2)) disp( critical clearing angle: ) Dcc

model of induction motor(parameters)