Full digital space optic communication array signal diversity receiving system

Abstract

This invention relates to a diversity receiving system for total digitalized space optical communication array signals including a host receiver and multiple under communication receivers mounted on the rotation unit of each universal shaft, each receiver includes a following module and a communication receiving module, the host receiver includes a host signal process module, each under communication receiver scans and follows signal sources on the total space angles independently and communicates with it, which can be used in the rigorous spacial laser channels including atmosphere sea channels of satellite and sea channels for under water target.

Description

technical field [0001] The invention relates to a digital array signal diversity receiving system for space optical communication. Specifically, the receiving system can modulate PPM modulated optical pulse signals from the pulse position of the same target signal source through multiple optical communication terminal receivers Receive in the form of an array, and comprehensively use digital signal processing technology, through digital signal processor DSP, field programmable gate array FPGA and other large-scale digital devices, build a receiver hardware platform that realizes advanced communication signal processing algorithms, so that the receiver has Digital filtering, denoising, space diversity equalization and RS error correction decoding and other strong signal detection and recovery ability to send information effectively. Generally speaking, the present invention belongs to the technical field of space optical communication receiving equipment. technical background...

AI Technical Summary

Problems solved by technology

[0003] Despite these difficulties, space optical communication technology is also constantly improving and developing. At present, there are not many practical space laser communication products, which are mainly used as local area communication bridges between buildings, or appear in some civilian emergency communication equipment. , the structure and function are too simple, there is no precise tracking and targeting system, and it cannot adapt to the complex communication environment

Other beyond-horizon laser communication systems, such as terrestrial satellite communication, inter-satellite optical communication, and communication between aircraft and underwater targets, are basically in the stage of laboratory prototypes, and there are no reports of formal commercialization.

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