Radio-frequency-signal measurement device and use method thereof

Abstract

The invention discloses a radio-frequency-signal measurement device and a use method thereof. The radio-frequency-signal measurement device includes a first amplitude detection circuit which is connected with a phase-locked loop circuit and used for outputting a first enable signal when it is detected the amplitude of signals output by the phase-locked loop circuit is within a first threshold range; a second amplitude detection circuit which is connected with an automatic level control circuit and used for outputting a second enable signal when it is detected that the amplitude of signals output by a loop-circuit filter of the automatic level control circuit is within a second threshold range; and a control unit used for outputting an indication signal used for indicating that output signals are valid according to the first enable signal and the second enable signal. The radio-frequency-signal measurement device and the use method thereof are capable of giving an indication to a system after both of the phase-locked loop circuit and the automatic level control circuit are stable to represent that setting of a signal source is stable and valid so that a user is capable of performing remote control or synchronization on the whole test system and ensuring that read data is valid and trustable all the time.

Description

technical field [0001] The invention relates to the field of measurement technology, in particular to a radio frequency signal measurement device and a method for using the same. Background technique [0002] figure 1 It is a structural schematic diagram of a radio frequency signal source in the prior art, such as figure 1 As shown, the radio frequency signal source in the prior art includes a phase locked loop (PLL, Phase Locked Loop) circuit, a frequency synthesis circuit, an automatic level control circuit, a variable attenuator, and a control unit, wherein: [0003] The phase-locked loop circuit includes a VCO (Voltage Controlled Oscillator, voltage-controlled oscillator), a phase detector, a programmable frequency divider, and a loop filter to generate the required frequency signal. The frequency synthesis circuit includes a frequency multiplication circuit, a frequency division circuit and a frequency mixing circuit, and changes the frequency signal generated by the ...

AI Technical Summary

Problems solved by technology

After the user sets the signal source, the output signal is not immediately stable, and if the output of the signal is read during the phase-locked loop locking process, errors may occur

However, the current existing technology cannot determine whether the signal output by the user after setting the signal source is stable, which also leads to the inability to determine whether the read signal is wrong.

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