A beacon optical pulse communication method of free space optical communication apt subsystem

Abstract

The invention discloses a beacon light pulse communication method of a free space optical communication APT subsystem, which improves the traditional FSOC system APT subsystem in a large range, and adds a beacon light carrier pulse encoding system and a beacon light carrier pulse decoding system , and add a beacon light communication control unit in the FSOC monitoring system. This method uses the characteristics of large divergence angle and wide coverage of the beacon light without adding additional communication equipment, and proposes an improved beacon light emission system. It can realize the data communication of the APT subsystem before the fine-tuning connection is established, so as to facilitate the application of communication handshake authentication, system status monitoring, equipment abnormal monitoring, etc., so as to improve the accuracy and security of the connected equipment and improve the freedom Performance index of space optical communication system.

Description

Technical field: [0001] The invention relates to the field of free space optical communication, in particular to a beacon light pulse communication method of an APT subsystem of free space optical communication. Background technique: [0002] Optical signals can not only propagate in optical fibers, but also in the air, and it is more convenient and quicker. In the industry, the official name of wireless optical communication is called free space optical communication (FSOC), which refers to the use of light waves as carriers, in vacuum or Compared with optical fiber communication, the communication technology for transmitting information in the atmosphere has a great cost advantage. Free space optical communication has broad application prospects in military and civilian fields. With the wide application of free space optical communication technology, the The management requirements of optical wireless communication systems are also increasing day by day. [0003] The exis...

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Problems solved by technology

Obviously, this time overhead is not only inefficient, but wrong connections may also cause other data security issues

[0006] In addition, the equipment that has established a free space optical communication connection cannot directly monitor the system information of the other party. It can only collect system data through the FSOC application layer of both parties, and establish an additional communication connection to encapsulate the system data and user data in the form of a data protocol. Sending and unpacking analysis to update the system data of the other party, which not only has a slightly lower real-time performance, but also occupies part of the optical communication bandwidth resources

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