Multi-satellite ultra-close-flying space-based radar system

A space-based radar, ultra-short-range technology, applied in the field of radar systems, can solve the problem of inability to carry large-area and ultra-long-sized radar antennas, and achieve the effect of ensuring distance and flatness, accurate inter-satellite positions, and flexible application

Active Publication Date: 2021-04-27
SHANGHAI SATELLITE ENG INST
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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

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  • Multi-satellite ultra-close-flying space-based radar system
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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, and power supply subsystems, which provide guarantee conditions for the work of radar antennas; space-based radar antenna 2 consists of multiple space-based radar antennas It is composed of a high-precision laser inter-satellite measurement transmitting and receiving equipment, used to measure the...

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Abstract

The invention discloses a space-based radar system for multi-satellite ultra-short-distance follow-up flight. , large data volume transmission system; the satellite body is composed of satellite structure, attitude control, thermal control, power supply, and other sub-systems, which provide guarantee conditions for the work of the radar antenna. In the present invention, by launching a plurality of small-area radar antenna satellites, an ultra-short-distance follow-up flight is formed on orbit to ensure the distance and flatness between the antennas.

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 Patents(China)
IPC IPC(8): G01S13/02G01S13/86
CPCG01S13/02G01S13/86G01S13/865
Inventor 陆晴苏跃增孙永岩万向成陈筠力
Owner SHANGHAI SATELLITE ENG INST
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