Communication method between spacecraft and extravehicular target equipment

Abstract

The invention relates to a communication method for a spacecraft and outboard target equipment, which comprises the steps that: S1, multiple paths of communication antennas of the spacecraft respectively send forward signal chips to the outboard target equipment of the spacecraft at a preset time interval; S2, the target equipment receives the forward signal chips, and the target equipment compares peak values of the forward signal chips with a threshold; S3, the target equipment merges the forward signal chips which are transmitted by each path of communication antenna and of which the peak values reach the threshold, generates an evaluation signal chip on the basis of a merging result, and sends the evaluation signal chip to the spacecraft; and S4, the spacecraft receives the evaluationsignal chip and returns confirmation information to the target equipment, so that the target equipment establishes a communication connection with the spacecraft. Multiple paths of communication antennas are arranged at an equal interval on a bulkhead of the spacecraft, which is beneficial for transceiving signals in a 360-degree range surrounding the spacecraft and improves full coverage on a communication range between the spacecraft and the outboard target equipment.

Description

technical field [0001] The invention relates to a communication method, in particular to a communication method between a spacecraft and an external target device. Background technique [0002] With the vigorous development of manned space missions, extravehicular activities have become a feature of manned space missions. As the supporting technology for extravehicular activities, EVA communication is responsible for the two-way real-time communication between the astronauts and the manned spacecraft, and the transmission of data such as voice, control commands and physiological telemetry. With the expansion of the range of activities outside the cabin and the increase in the scale of manned spacecraft, the communication outside the cabin is faced with problems such as multipath interference and "dead spots" in communication, which reduces the communication quality of the communication outside the cabin, and brings great harm to the astronauts who carry out the activities ou...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a communication method between a spacecraft and an extravehicular target device to solve the problem of poor communication quality between the spacecraft and the extravehicular target device

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