Uplink and downlink communication method based on air-to-air communication

Abstract

The invention provides an uplink and downlink communication method based on a microwave radar air-to-air communication function in a rendezvous and docking task process in order to ensure high reliability and smoothness of a device-to-ground link in a lunar orbit rendezvous and docking proximity guidance process. The method constructs a dual-relay communication link platform of a ground station, atarget aircraft and a tracker. The problem that a ground station cannot realize double-station common view under the constraint condition of an orbiter, the problem that a target aircraft and a tracker possibly shield each other in the process of approaching each other and the problem of measurement and control communication under the condition of measurement and control link failure are solved.The robustness of uplink and downlink measurement and control links of a spacecraft and a ground station during rendezvous and docking of lunar orbits can be effectively improved.

Description

technical field [0001] The invention relates to an uplink and downlink communication method based on air-to-air communication, and belongs to the technical field of measurement and control. Background technique [0002] The third phase of my country's lunar exploration project will implement soft landing on the lunar surface and sample collection, and bring lunar soil samples back to Earth. In order to achieve this goal, it is necessary to transfer samples through lunar orbital rendezvous and realize the first unmanned lunar orbital rendezvous and docking. Compared with the earth orbit rendezvous and docking, due to its special deep space environment and the difficulty of measurement and control, unmanned lunar orbit rendezvous and docking technology has higher requirements in terms of control autonomy, rapidity and system robustness. [0003] In the lunar orbit rendezvous and approach guidance process, ensuring the smooth flow of the vehicle-ground link at critical moments...

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is: in order to ensure the high reliability and smoothness of the device-ground link in the process of lunar orbit rendezvous and approach guidance, the present invention proposes an uplink and downlink link based on the microwave radar air-to-air communication function during the rendezvous and docking mission process. The link communication method builds a dual-relay communication link platform for the ground station, target aircraft, and tracker to solve the problem that the ground station cannot achieve "dual-station common view" under the constraints of the orbiter, and the process of the target aircraft and tracker approaching each other The possible mutual occlusion problem and the measurement and control communication problem under the condition of measurement and control link failure can effectively improve the robustness of the uplink measurement and control link between the spacecraft and the ground station during lunar orbit rendezvous and docking

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