xitongbianshi

跳频通信过程仿真。包括调解，扩频，接扩，解调全过程。(Simulation of frequency hopping communications. Including mediation, spread spectrum, and then expand, the whole process of demodulation.)

电力系统中无功补偿 SVC-SVG模型 可以观察无功补偿器对电能质量的维持的有利作用(Power System Reactive Power Compensation SVC-SVG model, you can observe the reactive power compensation of power quality maintenance of beneficial effects)

matlab2011 64位 win7系统 PIDNN test(matlab2011 64bit win7)

high pass filter with FIR for education

对于数字图像等一系列处理进行系统的实验，有效提高自学者对于数字图像的能力(For digital image processing system, a series of experiments, effectively improve the scholars of digital image ability )

双音多频编解码系统，用于产生双音多频信号，并由双音多频信号解码出对应的按键(DTMF codec systems, used to generate DTMF signal by the DTMF signal decoding keys corresponding)

基于matlab的通断键控调制模块，跟通信原理书上的2ask调制原理类似，在调用时，需要在主函数中加入调制信号，和进制数，一般是2(Matlab on-off keying modulation of the module, with the Communication Theory book 2ask similar modulation principle, in the call, there is a need to add in the main function of modulation signal, and the hexadecimal number, typically 2)

Simple MSK modulation

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

Rayleigh瑞利信道的Matlab仿真程序，简单易懂，运行出图。(Rayleigh Road, Matlab simulation program)