Multi-node space laser communication method based on dual wavelength

Abstract

The invention discloses a dual-wavelength multi-node space laser communication method. The present invention includes a master node and a plurality of slave nodes; the main transceiver integrated antenna module is connected with the optical path exchange module through the main APT module, the main transceiver integrated antenna module collects the spatial light and inputs the spatial light to the main APT module, and the main APT module Separate the signal light and beacon light of the slave node in the spatial light and send the signal light to the optical path switching module; the APT module of the master node and the slave node makes the master transceiver integrated antenna module and the slave transceiver module track the beacon light sent by each other The integrated antenna module is dynamically aligned, the optical path switching module receives the signal light and processes the signal light, and sends the processed signal light directly to the designated slave node through the main transceiver integrated antenna module. The invention supports free, simultaneous and two-way space laser communication from the master node to the slave nodes and between each slave node; it has the characteristics of saving wavelength resources, compact structure and high feasibility.

Description

technical field [0001] This patent relates to a multi-node space laser communication method in the field of space laser communication, and specifically relates to a multi-node space laser communication method based on dual wavelengths. Background technique [0002] Space laser communication is a communication method that uses a laser beam as a carrier to transmit signals directly in space. In addition, due to the concentrated energy and good directionality of the laser beam, it also has strong confidentiality and anti-interference. [0003] Compared with traditional microwave communication, space laser communication has a huge bandwidth and can transmit data at a higher rate. [0004] Space laser communication can quickly set up a network without being affected by terrain and landforms, and can solve the problem of "last mile" network laying in areas with harsh environments. At the same time, traditional communication will be interrupted due to natural disasters, and space...

AI Technical Summary

Problems solved by technology

[0007] The present invention proposes a multi-node space laser communication method based on dual wavelengths, which can solve the problem of how to carry out space laser communication between multiple nodes, so that a more complex network topology can be formed between multiple nodes, thereby further forming a space laser Communication network, promoting the network construction of space-ground integration

[0008] The purpose of the present invention is to use the master node based on the dual-wavelength scheme to solve the problem of space laser communication between multiple nodes

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