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Space debris detection system and method

A space debris and detection system technology, applied in the field of space debris detection systems, can solve the problems of weak ability to receive scattered signals of space debris, high cost of transmitting stations, unsatisfactory detection results, etc.

Inactive Publication Date: 2019-01-29
SHANGHAI ASTRONOMICAL OBSERVATORY CHINESE ACAD OF SCI
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Problems solved by technology

[0005] The present invention aims to solve the problems of weak ability to receive scattered signals of space debris, high cost of transmitting stations and unsatisfactory detection results in the existing passive radar detection space debris technology, and provides a space debris detection system and method

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  • Space debris detection system and method
  • Space debris detection system and method
  • Space debris detection system and method

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Embodiment Construction

[0065] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific examples and with reference to the accompanying drawings.

[0066] In order to strengthen passive radar detection of space debris technology, the present invention proposes a space debris detection system consisting of a low-frequency radio telescope array (working principle similar to passive radar) and an FM radio station (as a signal transmission source) far away from it. And provide the corresponding detection method.

[0067] A space debris detection system, such as figure 1 As shown, it is mainly composed of low-frequency radio telescope array data receiving and processing system and FM radio station group.

[0068] The above-mentioned FM broadcasting station group is composed of FM broadcasting stations far away from the low-frequency radio telescope array (the distance is gr...

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Abstract

The invention discloses a space debris detection system and method. Widely-distributed and ready-made FM broadcasting stations on territory are used as emission signal sources, extra radar emission station is not needed to be built, and the station building cost is greatly reduced. A low-frequency radio telescope array comprises a dual-polarization dipole antenna, the antenna can form a station, and several stations can form an array. Such convenient and flexible combination is suitable for large-scale foreign-land deployment, each station can independently work and also can synergistically work to form interference array. Compared with traditional passive radar, the system is relatively large in detection visual field and is high in sensitivity, and a target which can be detected is larger in visual range.

Description

technical field [0001] The invention relates to the technical field of space debris detection, in particular to a space debris detection system and method. Background technique [0002] Space debris refers to the product of human activities in space. It mainly includes rocket bodies and satellite bodies that have completed missions, rocket wreckage, discarded objects during the execution of space missions, and fragments produced by collisions and weathering between space objects. They are the main pollution sources of the space environment, so they are also called space garbage. These space debris are generally distributed in orbits between about 100km and 40,000km above the earth. With the continuous accumulation of space debris, the probability of collision between space debris is greatly increased, resulting in a sharp increase in the number of space debris. To make matters worse, the possibility of collisions between space debris and spacecraft such as active satellit...

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Application Information

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IPC IPC(8): G01V3/12
CPCG01V3/12
Inventor 劳保强安涛
Owner SHANGHAI ASTRONOMICAL OBSERVATORY CHINESE ACAD OF SCI