502942.fig.0012a
(a) ModelSim output of loop filter
502942.fig.0012b
(b) MATLAB processing of output of loop filter
502942.fig.0012c
(c) MATLAB processing of ModelSim the output of NCO and input of QPSK modulated signal
Figure 12: The joint simulation result of ModelSim and MATLAB under the condition of SNR = 20 dB for our QPSK ADCRL.