Method and device for quick synchronization of power multi-carrier communication system

A multi-carrier communication and carrier synchronization technology, which is applied in the modulation carrier system, multi-frequency code system, transmission system, etc., can solve the problem that the power multi-carrier system cannot be synchronized quickly

Inactive Publication Date: 2016-06-29
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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Problems solved by technology

[0005] 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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  • Method and device for quick synchronization of power multi-carrier communication system
  • Method and device for quick synchronization of power multi-carrier communication system
  • Method and device for quick synchronization of power multi-carrier communication system

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Embodiment Construction

[0054] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0055] see figure 1 , a schematic flow chart of a fast synchronization method for a power multi-carrier communication system provided by an embodiment of the present invention, based on a DVB-T2 system with a P1 symbol, the method includes:

[0056] S101. Detect the P1 symbol of the frame header, and perform rough timing synchronizatio...

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Abstract

The embodiment of the present invention discloses a fast synchronization method and device for a power multi-carrier communication system, a DVB-T2 system based on a P1 symbol, the method includes: detecting the P1 symbol of the frame header, and synchronizing the P1 symbol according to the symbol correlation characteristic Carry out coarse timing synchronization, perform carrier synchronization on the P1 symbol after coarse timing synchronization, fine timing synchronization process the P1 symbol after carrier synchronization, perform decoding operation according to the processed P1 symbol, obtain system parameters, and complete frame header fast Synchronize. Because the P1 symbol is different from the traditional OFDM symbol structure, the classic synchronization method is not completely suitable for the synchronization of the P1 symbol. The initial synchronization method of the DVB-T2 system based on the P1 symbol provided by the present invention solves the problem in the power multi-carrier system. The fast synchronization problem ensures that the orthogonality of the subcarriers in the power multi-carrier system is synchronized in time and frequency, so as to complete the effective transmission of power information.

Description

technical field [0001] 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 [0002] 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 normal transmission of the communication network. basis of information. Synchronization technologies include bit synchronization, node synchronization, initialization synchronization and uplink synchronization, etc. Synchronization technology has always been a key technology in digital communication systems. Failure of the synchronization circuit will seriously affect the bit error performance o...

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Application Information

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IPC IPC(8): H04L27/26
CPCH04L27/2663H04L27/2656H04L27/2657H04L27/2665
Inventor 李维李萍冯勇杨家全邹京希李浩涛
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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