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

A communication method and link technology, applied in the field of measurement and control, can solve problems such as the inability to achieve dual-station co-view and mutual occlusion

A communication method and link technology, applied in the field of measurement and control, can solve problems such as the inability to achieve dual-station co-view and mutual occlusion

CN112367110AInactive Publication Date: 2021-02-12BEIJING INST OF SPACECRAFT SYST ENG
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  • Uplink and downlink communication method based on air-to-air communication
  • Uplink and downlink communication method based on air-to-air communication
  • Uplink and downlink communication method based on air-to-air communication

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Embodiment

[0042] An uplink and downlink communication method based on air-to-air communication, involving the following four parts:

[0043] a) Air-to-air dual-relay communication link

[0044] In order to improve the reliability and robustness of the space-ground link measurement and control channel, based on the two-aircraft communication link established by the air-air link, a dual-relay communication link between the ground station, the target aircraft, and the tracker was built. For a schematic diagram of dual-relay link planning, see figure 1 .

[0045]Among them, the remote control signal sent by the ground station to the target aircraft and tracker is defined as uplink, and the telemetry signal sent by the target aircraft and tracker to the ground station is defined as downlink; any aircraft (target aircraft or tracker) sends another aircraft Sending remote control signals is defined as the forward link, and any aircraft (target aircraft or tracker) sending telemetry signals t...

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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...

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Application Information

Patent Timeline
12 Feb 2021
Publication
CN112367110A
IPC
H04B7/185
CPC
H04B7/1851; H04B7/18519
Inventors
邢卓异; 盛瑞卿