Research on a Phase Calibration Method Based on Amplitude Measurement of Signal
Zhiyong Lu · Radio Engineering · 2010
Based on amplitude measurement of the signal,a new phase calibration method is proposed in this paper.The phase difference of multi-channel signal can be found through the calculation of relative signal level in several specified states.The calibration theory is introduced;simulation and verification are conducted on the FPGA-DSP platform;and the measured results are given.The simulation results show that the this new calibration method is feasible,the measured results show that this method has the virtue of high speed,less equipment and has little difference with the result of calibration by instrument,and is especially suitable for calibration and compensation of system with inconsistent multi-channels.