Method and apparatus for broadband measurement of the frequency of a signal, in particular for measuring the respective frequencies of simultaneously occurring signals

摘要

the method and the device for measuring the frequency of a signal is the signal of unknown frequency (f) of two signals of the same frequency, resulting in a u00fcbertragungsschaltung (2) spread. a circuit (3) determines the envelope (sp) in the u00fcbertragungsschaltung (2) resulting in the wave. a circuit (4) measures the spatial frequency (fs) of the envelope.the frequency (f) of the signals is proportional to the spatial frequency (fs) of the envelope and through a circuit (5) calculates. $a application on the measurement of the frequency of the signals at the same time.