Research on group-delay jitter correction for channel simulator

For the demand of high-precision simulation of universal channel simulator, using the channel equalization techniques can reduce the signal distortion which is caused by the nonlinear phase of the channel. However the conventional method of phase correction has lower accuracy and is more sensitive to noise. This paper first proposed an effective method of measuring the phase-frequency response of the channel; Second, designed equalization filter according to the measured frequency response to compensate for the channel nonlinear phase and then achieved the purpose of group-delay jitter correction; Finally, the results of measurement and equalization were presented.