Phase detection method and device, and equipment

Abstract

The invention discloses a phase detection method and device, and equipment. The phase detection device comprises a signal processing component, a phase discrimination component and a phase comparison component, wherein the signal processing component is used for obtaining a reference clock signal and an initial phase value thereof; the phase discrimination component is used for obtaining a to-be-detected clock signal and obtaining a first phase difference signal according to the reference clock signal and the to-be-detected clock signal; the phase comparison component is used for obtaining a phase adjustment signal according to the first phase difference signal; the signal processing component is also used for carrying out phase adjustment on the reference clock signal according to the phase adjustment signal so as to reduce the first phase difference signal, accumulating the adjusted phase value so as to obtain a phase cumulative value, and obtaining the phase value of the to-be-measured clock signal according to the phase cumulative value and the initial phase value. In the embodiment of the invention, the phase of the reference clock signal can approach the phase of the to-be-measured clock signal through limited times of processing, so that the clock phase can be measured at high precision and high speed.

Description

Technical field [0001] Embodiments of the present invention relate to but are not limited to, in particular, in particular, a phase detection method and a device thereof, and a device. Background technique [0002] At present, 5G communication has a higher accuracy of 1588 clock time, and a single node is required to be within several nanoseconds. If necessary to further increase the accuracy of the clock signal, it is necessary to increase the frequency of the clock signal, or the phase of the clock signal is measured after measurement, the first mode is high, the chip, the process, etc., the next method, the chip, process, etc. The requirement is low, so the latter is relatively high. [0003] The currently commonly used clock phase measurement is three categories: The first type is to use a very high frequency clock signal to sample the clock signal to obtain phase information; the second type is to move one clock signal by shifting A clock signal having a number of frequency ...

AI Technical Summary

Problems solved by technology

The first type of method has higher requirements on chips and processes; the second type of method is less expensive to realize, but the accuracy is not high; the third type of method has higher accuracy, but the measurement speed is slower, and the higher the accuracy, the faster the speed. slow

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