A full-duplex high-throughput two-way ARQ communication system and method based on CCSDS protocol

Abstract

The invention discloses a full-duplex high-throughput two-way ARQ communication system and method based on the CCSDS protocol. The system includes a timing weighting module, a data frame and window processing module, a transmission window response module and a starting module. Adopting the present invention realizes the self-adaptive adjustment of the transmission data frame length and the transmission window width under the full-duplex two-way ARQ (Automatic Repeat Queuing) working state, and solves the problem of communication parties in the CCSDS Proximity-1 protocol under specific communication parameter conditions. (including data frame length, transmission window, forward return rate and encoding method, etc.), which may cause the problem of reduced forward, return or bidirectional communication throughput, so that the forward return link can reach the maximum while ensuring error-free transmission. communication throughput.

Description

technical field [0001] The invention discloses a full-duplex high-throughput two-way ARQ communication system and method based on the CCSDS protocol. The system belongs to the field of deep space detection relay communication. Background technique [0002] In deep space exploration activities such as Mars exploration, due to the long communication distance, the remote control command on the ground has a large delay, and because the visible arc with the earth is limited, real-time control cannot be performed, so it mainly relies on the communication between the orbiter and the landing patrol. The forward link between the two devices generally transmits the remote control commands forwarded by the ground to the landing patrol through the surround device, and the return link generally transmits the key telemetry information of the landing patrol and other information such as the images it collects. The information transmitted in the forward and reverse links is very important, ...

AI Technical Summary

Problems solved by technology

Under the two-way ARQ condition, although the error-free transmission of information can be guaranteed, under various communication parameter conditions (such as the data frame length given by the digital tube, the transmission window, the forward and backward rate, and the encoding method, etc.), it may cause Degradation of communication throughput in the direction, return or bi-directional

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