Instant - phase meter - a receiver for an electromagnetic contained in a broad frequency band signal

摘要

The receiver - phase meter receives at reference numerals - and measuring inputs broadband highly frequency signals (s _ vi). It contains a mixer (19) for the output signal of the measuring channel (11 to 17) with the output signal of the reference channel (82 to 87), in order to processing means (41 to 42, 45, 50) to supply signals, the information about the phase difference between the signals received contains. The processing comprises an analog / digital - conversion (41 to 42) of the two - components - signals which represent the phase of the measurement signals. The reference reception - and measuring channels (82 to 87; 11 to 17) are subjected to no change in frequency. Prior to the supply to the mixer (19), the output of the reference channel a phase modulation with a signal having a plurality of states, which are switched over a result of which, with the sampling clock of the analog / digital - conversion is coupled.