Design and realization of calibration system for quality parameters of digital modulation

Quality parameters of digital modulation are main indexes for digital communication system, of which calibration can keep communication equipments in good state. Introduces design of the calibration system which can calibrate quality parameters of digital modulation. The system consists of general hardware platform and modular software. A general calibration process is designed in each calibration module that will make the flexible customization of calibration function. Experiment and evaluation of uncertainty have proved effectiveness of the calibration system finally.