Device and method for noise identification and parameter adjustment in a ptp clock network

Abstract

The invention provides a device for noise identification and parameter adjustment in a PTP clock network, and the device comprises a message processing module which is electrically connected with a PTP module, a fast Fourier transform module, and a PID module, and the PID parameter adjustment module is electrically connected with the fast Fourier transform module, and the PID module. The PTP module is used for sending a PTP message containing noise information and time information to the message processing module; the message processing module is used for extracting time deviation information of the PTP message and sending the time deviation information to the fast Fourier transform module; the fast Fourier transform module is used for determining a noise amplitude and a noise frequency value according to the time deviation information and sending the noise amplitude and the noise frequency value to the PID parameter adjustment module; the PID parameter adjustment module is used for determining a corresponding PID parameter correction value according to the noise amplitude and the noise frequency value and sending the PID parameter correction value to the PID module; and the PID module is used for screening noise information according to the time deviation information and the PID parameter correction value. According to the invention, noise can be identified in a PTP clock network and selective transmission can be realized according to noise information.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of signal processing, and in particular to a device and method for noise identification and parameter adjustment in a PTP clock network. Background technique [0002] In a PTP (precise time protocol, high-precision clock synchronization protocol) clock synchronization network, there are specific requirements for the transmission of network noise. Usually the PTP network node needs to filter the noise of a specific frequency to pass through the node and output it according to a specific amplitude. [0003] However, the general system only inputs the input signal and noise into a PID controller (proportion, integral, differential Controller, proportional, integral, differential controller) with fixed parameters, and then transmits it to a direct digital frequency synthesizer for further processing with the input signal. Frequency synthesis, through which PID will cause different types of...

AI Technical Summary

Problems solved by technology

[0003] However, the general system only inputs the input signal and noise into a PID controller (proportion, integral, differential Controller, proportional, integral, differential controller) with fixed parameters, and then transmits it to a direct digital frequency synthesizer for further processing with the input signal. Frequency synthesis, through this PID, different types of noise will be processed uniformly, and it is difficult for this system to precisely control the transmission of noise

Images