Rapid synchronization method and system of electric power multi-carrier communication system

Abstract

The embodiment of the invention discloses a rapid synchronization method and system of an electric power multi-carrier communication system. The method and the device are applied to a DVB-T2 system based on P1 symbols. The method comprise following steps of detecting the P1 symbols of frame headers; carrying out rough timing synchronization on the P1 symbols according to related characteristics of the symbols; carrying out carrier synchronization on the P1 symbols after the rough timing synchronization; carrying out fine timing synchronization on the P1 symbol after the carrier synchronization; carrying out decoding operation according to the processed P1 symbols, thus obtaining system parameters and finishing rapid synchronization of the frame headers. The structures of the P1 symbols are different from that of traditional OFDM (Orthogonal Frequency Division Multiplexing) symbols, so that a classical synchronization method is incompletely applicable to the synchronization of the P1 symbols. According to the initial synchronization method based on the DVB-T2 system based on the P1 symbols provided by the invention, the rapid synchronization problem in the electric power multi-carrier system is solved, the orthogonalities of sub-carriers in the electric power multi-carrier system are synchronized in time and frequency, and the electric power information is effectively transmitted.

Description

[0001] This application claims the priority of the Chinese patent application with the application number 201610092389.6 and the title of the invention "A fast synchronization method and device for electric multi-carrier communication system" submitted to the China Patent Office on February 19, 2016, the entire content of which is incorporated by reference incorporated in this application. technical field [0002] The invention relates to the technical field of electric power communication, in particular to a fast synchronization method and device for an electric power multi-carrier communication system. Background technique [0003] Synchronization technology is a technology to adjust various signals in the communication network to make them work together. It is a practical problem that any communication system needs to solve. Its performance is directly related to the quality of the entire communication system. The coordinated work of various signals is the key to the norma...

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Problems solved by technology

[0006] The embodiment of the present invention provides a fast synchronization method and device for a power multi-carrier communication system to solve the problem that the P1 symbol in the prior art cannot be quickly synchronized in a power multi-carrier system

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