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Multi-satellite ultra-short-range flight-following space-borne radar system

A space-based radar and ultra-short-range technology, which is applied in the field of radar systems, can solve problems such as the inability to carry super-large-area and super-long-sized radar antennas, and achieve the effects of ensuring distance and flatness, precise inter-satellite positions, and flexible applications

Active Publication Date: 2018-02-09
SHANGHAI SATELLITE ENG INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a space-based radar system for multi-satellite ultra-short-range follow-up, which is suitable for space-based radar satellite systems with ultra-large area and ultra-long size, and is used to solve the problem that a single satellite cannot carry ultra-large area The problem of long-sized radar antennas reduces the difficulty of system implementation and improves system reliability and redundancy

Method used

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Embodiment Construction

[0015] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to describe the technical solution of the present invention in detail.

[0016] Such as figure 1 As shown, the space-based radar system of the multi-satellite ultra-short-distance follow-up flight of the present invention consists of a satellite body 1, a space-based radar antenna 2, a high-precision inter-satellite measurement system 3, an ultra-short-distance follow-up control system 4, and a high-precision flatness measurement System 5, large data volume transmission system 6; satellite body 1 is composed of satellite structure, attitude control, thermal control, power supply, and other sub-systems, which provide guarantee conditions for the work of radar antenna; space-based radar antenna 2 is composed of multiple space-based The radar antenna board and the deployment mechanism are used to transmit beams and receive target echoes; the high-precision inter...

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Abstract

The invention discloses a multi-satellite ultra-short-range flight-following space-borne radar system composed of satellite bodies, a space-borne radar antenna, a high-precision inter-satellite measurement system, an ultra-short-distance flight-following control system, a high-precision planeness measurement system and a big data volume transmission system. Each satellite body is composed of a satellite structure, an attitude control unit, a heat control unit, a power source and a halving system and provides supporting conditions for operation of the radar antenna. According to the invention,through launching multiple small-area radar antenna satellites, ultra-short-range flight following is achieved on track, so that distance and planeness among the antennas are ensured.

Description

technical field [0001] The invention relates to a radar system, in particular to a space-based radar system for multi-satellite ultra-short-range follow-up flight. Background technique [0002] In order to realize the detection of small and medium-sized moving targets, according to the radar equation, space-based radar needs an antenna with an area of ​​hundreds or even thousands of square meters, the antenna azimuth size is hundreds of meters, and the required power is as high as tens to hundreds of kilowatts. Considering Limited by the constraints of the carrying envelope and weight, it is difficult to achieve a single satellite; therefore, a space-based radar system for multi-satellite ultra-close follow-up flight is proposed. [0003] By launching multiple small-area radar antenna satellites, an ultra-close follow-up flight is formed on the orbit to ensure the distance and flatness between the antennas, which is equivalent to hundreds or thousands of square meters of rad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/02G01S13/86
CPCG01S13/02G01S13/86G01S13/865
Inventor 陆晴孙永岩万向成陈筠力
Owner SHANGHAI SATELLITE ENG INST
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