Abstract:

Because of the limitation of electronic bottleneck in radar signal processing,more attention is paid to microwave photonic technology due to its advantages.It is necessary to modulate the unknown microwave signal to optical carrier on optical modulator,so that it can get an amplitude comparison function (ACF) related to signal frequency,and then the frequency of the microwave signal can be worked out.In this paper,the theory of frequency measurement is analyzed,and the method of frequency measurement is verified in optisystem.Finally,the precision and range of frequency measurement are analyzed.

Key words: microwave photonic technology;frequency of testing;Optisystem