c6_pllpost.m

该程序是二阶琐相环的防震实例 仿真结果给出了二阶琐相环的相平面

kk=0;
while kk == 0
    k=menu('Phese Lock Postprocessor',...
     'Input Frequency and VCO Frequency','Input Phase and VCO Phase',...
     'Phase plane and Time Domain Plots','Exit Program');
     if k == 1
         plot(t,fin,t,fvco)
         title('Input Frequency and VCO Frequency')
         xlabel('Times-Seconds'); ylabel('Frequency-Hetrz');
         pause
     elseif k ==2   
         pvco = phin-phierror;
         plot(t,phin,t,fvco)
         title('Input Phase and VCO Phase')
         xlabel('Times-Seconds'); ylabel('Phase-Radians');
         pause
     elseif k ==3  
         plot(t,freqerror);
         title('Frequency Error')
         xlabel('Times-Seconds'); ylabel('Frequency Error-Hetrz');
         pause
     elseif k ==4 
         plot(t,phierror);
         title('Phase Error')
         xlabel('Times-Seconds'); ylabel('Phase Error-Radians');
         pause  
    elseif k == 5
        ppplot
    elseif k == 6
        subplot(211);
        phierrn= phierror/pi;
        plot(phierrn,freqerror);
        grid;
        title('Phase Plane Plot');
        xlabel('Phase Error /Pi'); ylabel('Frequency Error - Hertz ');
        subplot(212)
        plot(t,fin,t,fvco);grid
        title('Input Frequency and VCO Frequency')
        xlabel('Times-Seconds'); ylabel('Frequency Error-Hetrz');
        subplot(111)
     elseif k==7
        kk=1;
     end
end