www.gusucode.com > PLL Frequency Synthesis Examples 程序工具箱matlab源码 > PLL Frequency Synthesis Examples/pll_design_cp_v2/CL_Bode_Plot.m
%% Closed Loop Bode Plot Script Fvec=CL_TF(:,2); % Note the order is reversed from the Double Cross estimator. Xfer = CL_TF(:,1); dB = 20*log10(abs(Xfer)); phase = (180/pi)*atan2(imag(Xfer),real(Xfer)); subplot(2,1,1); semilogx(Fvec,dB); title('Magnitude'); xlabel('Hz');ylabel('dB'); grid on; axis([0 Fvec(end) -25 25]) subplot(2,1,2); semilogx(Fvec,phase); title('Phase');xlabel('Hz');ylabel('Degrees'); grid on; set(gcf,'Name','Closed Loop PLL Transfer Function Measurement','NumberTitle','off');