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Trans-track inter-satellite antenna based on switching and capturing and tracking method thereof

An antenna and off-orbit technology, which is applied in the field of off-orbit satellite inter-satellite antenna design and capture and tracking process, can solve the problem of slow capture and tracking speed of mechanical servo drive mechanism, slow rotation speed of servo mechanism, and inability to meet the requirements of building inter-satellite links, etc. Problems, to achieve the effect of simplifying the information flow on the star, fast tracking speed, and saving the delivery process

Active Publication Date: 2014-12-03
AEROSPACE DONGFANGHONG SATELLITE
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Limited by the mechanical inertia, the capture and tracking speed of the mechanical servo drive mechanism is relatively slow
In the initial acquisition stage, the mechanical servo mechanism cannot search for the incident signal in a large range. It must calculate the target pointing position based on the satellite orbit, and roughly point the antenna to the target direction, and search in a small range in the target direction; stage, the rotation speed of the servo mechanism is relatively slow, which cannot meet the needs of building an inter-satellite link between high-speed relative motion satellites

Method used

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  • Trans-track inter-satellite antenna based on switching and capturing and tracking method thereof
  • Trans-track inter-satellite antenna based on switching and capturing and tracking method thereof
  • Trans-track inter-satellite antenna based on switching and capturing and tracking method thereof

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Embodiment Construction

[0023] The present invention will be described in detail below in conjunction with the accompanying drawings. The present invention is based on a switching off-track inter-satellite antenna, such as figure 1 As shown, it includes a microwave switching component and an antenna array; the antenna array is composed of N narrow beam antenna elements, which can be designed as a line array or an area array according to the requirements of the directivity angle; the microwave switching component is as follows Figure 4 As shown, there are 2 equipment coupling interfaces (denoted as P1 and P2) and N antenna coupling interfaces. The P1 port is connected to the on-board transmitter and receiver through a duplexer, and the P2 port is connected to the signal detector; a narrow beam The antenna element is connected to an antenna coupling interface, and the P1 port and the P2 port can form a radio frequency path with any antenna element through a microwave switch. The electric axes of each...

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Abstract

The invention discloses a trans-track inter-satellite antenna based on switching and a capturing and tracking method of the trans-track inter-satellite antenna based on switching. The trans-track inter-satellite antenna based on switching comprises a microwave switching assembly and an antenna array, wherein the antenna array is composed of N narrow beam antenna array elements, the microwave switching assembly is provided with an equipment coupling port P1, an equipment coupling port P2 and N antenna coupling ports, the equipment coupling port P1 is connected with a satellite-borne transmitter and a satellite-borne receiver through duplexers, the equipment coupling port P2 is connected with a signal detector, each narrow beam antenna array element is connected with the corresponding antenna coupling port, radio frequency channels can be formed between each equipment coupling port and all the antenna coupling ports respectively, the electric axes of all the narrow beam antenna array elements point to different directions, so that a radial pattern is formed in the space, and the wave beam coverage areas of every two adjacent narrow beam antenna array elements overlap, so that the whole antenna array meets the requirement for the wave beam coverage area when the positions of satellites on tracks change relatively.

Description

technical field [0001] The invention relates to an inter-satellite antenna design and capture and tracking process of off-orbit satellites. Background technique [0002] When the satellite formation or satellite constellation completes space networking tasks, it often involves the construction of inter-satellite links between satellites in different orbits. There is high-speed relative motion of off-orbit satellites. When building an inter-satellite link, the inter-satellite antenna needs to be able to adjust the antenna pointing in real time according to the relative position of the satellite. The adjustment speed of the pointing must meet the needs of the relative motion of the satellite. The adjustment of antenna pointing is divided into two phases: the initial acquisition phase and the tracking phase. In the initial acquisition stage, the inter-satellite antenna needs to detect the incident signal in a large space range, and preliminarily determine the incident directi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00H04B7/04
Inventor 赵黎晔蒙薇王淼高杰李红宝
Owner AEROSPACE DONGFANGHONG SATELLITE
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