Method and device for measuring spectral line phase-frequency characteristics of comb generator

• Main Authors: GU ZONGJING, LIU DAN, GUO LIQIANG
• Format: Patent
• Language: Chinese; English
• Published: 03.10.2023
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention provides a comb wave generator spectral line phase frequency characteristic measurement method and device, and relates to the technical field of electronic information, a phase continuous frequency synthesizer is used for providing an excitation signal for a comb wave generator, and the comb wave generator generates a measured comb wave; setting a frequency synthesizer to adopt a stepping frequency sweeping working mode, and sequentially measuring the phase difference of each spectral line of the measured comb wave at each stepping frequency point; the method comprises the following steps: defining an ideal comb wave, and calculating the phase deviation between the phase of an output signal of a synthesizer and a spectral line corresponding to the ideal comb wave according to the frequency interval of adjacent spectral lines of a comb wave signal and the frequency stepping time of the synthesizer; correcting the measured phase difference according to the phase deviation; and on the basis of the