Space laser communication transmission device and method

Abstract

The invention discloses a space laser communication transmission device and method. The device comprises a photoelectric tracking module, a signal receiving module, a laser transmitting module, a storage module and a control module, wherein the photoelectric tracking module is used for searching and capturing external signal light; the signal receiving module is used for receiving and demodulatingthe external signal light; the laser transmitting module is used for demodulating the signal into signal light to be output; the storage module is used for storing a signal to be transmitted or a received signal; the control module is connected with each module respectively; and the control module is used for judging the operation states of the signal receiving module, the laser transmitting module, the photoelectric tracking module and the storage module, acquiring state information, and determining the communication mode of the space laser communication transmission device through the acquired state information. The space laser communication transmission device and method provided by the invention can select a suitable communication mode according to the working state of the communication device.

Description

technical field [0001] The invention relates to the technical field of space laser communication, in particular to a space laser communication transmission device and method. Background technique [0002] Space laser communication technology refers to the technology of using laser as a carrier to transmit data in space. When performing full-duplex laser communication, the alignment of the laser light paths of both parties must be kept in order to ensure the normal transmission of communication. Since the laser divergence angle is generally in the The magnitude of micro-radians and milliradians, therefore, when performing full-duplex laser communication, the requirements for alignment accuracy are very high. [0003] In daily communication, communication links are easily affected by factors such as atmosphere and occlusion, resulting in data error or data interruption. Therefore, after the link interruption is restored, it is important to be able to continue the transmission...

AI Technical Summary

Problems solved by technology

[0004] The research work on resumed transmission of communication at home and abroad is mainly based on wired or radio frequency communication, and most of them are realized through Internet protocols, or research on resumed transmission of storage devices, mainly considering the resumed transmission of a single file , does not consider the communication method when the data is continuously sent and the link is unstable, or the link cannot perform duplex communication.

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