Full-duplex high-throughput bidirectional ARQ communication system and method based on CCSDS protocol

Abstract

The invention discloses a full-duplex high-throughput bidirectional ARQ communication system and method based on a CCSDS protocol. The system comprises a timing weighting module, a data frame and window processing module, a transmission window response module, and a starting module. According to the full-duplex high-throughput bidirectional ARQ communication system and method based on a CCSDS protocol, the adaptive adjustment of the transmission data frame length and the transmission window width under the full-duplex bidirectional ARQ (Automatic Repeat Queuing) working state is realized, andthe problem that communication parties in CCSDS Proximity-1 protocol may cause the forward, backward or two-way communication throughput to decrease under the conditions of specific communication parameters(including the data frame length, the transmission window, a forward and backward rate, and encoding mode), so that the forward and backward link can achieve the maximum communication throughputwhile ensuring error-free transmission.

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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