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Planetary swingby trajectory assessment method for deep space probe

A deep space probe, leveraging flight technology, applied in the aerospace field, can solve the problems of low evaluation accuracy and low evaluation efficiency, and achieve the effect of improving evaluation efficiency and accuracy

Inactive Publication Date: 2018-04-20
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

[0005] In order to solve the problems of low evaluation accuracy and low evaluation efficiency existing in the existing evaluation methods of planetary leveraged flight orbits, the present invention proposes an evaluation method for planetary leveraged flight orbits of deep space probes

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  • Planetary swingby trajectory assessment method for deep space probe
  • Planetary swingby trajectory assessment method for deep space probe
  • Planetary swingby trajectory assessment method for deep space probe

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Embodiment Construction

[0029] The implementation of the present invention will be described in detail below with reference to the accompanying drawings, taking the evaluation of the orbit of the asteroid in the main belt of the inner ring as an example.

[0030] The basic principle of the present invention is as follows: first, the numerical optimization method is used to solve the optimization design model of the orbit of the planet by force, and the sample data of the optimal transfer orbit is generated; The vector machine regression method is used to train and learn the mapping model; finally, the obtained statistical mapping model is used to evaluate the performance of the optimal planetary leverage flight orbit of the required detection mission target.

[0031] The concrete steps of this embodiment are as follows:

[0032] Step 1: Generate optimal planetary orbital sample data

[0033] In this embodiment, Mars is selected as the borrowing planet S, then the deep space probe starts from the ear...

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Abstract

The invention provides a planetary swingby trajectory assessment method for a deep space probe, and solves the problems of low assessment precision and low assessment efficiency of an existing planetary swingby trajectory assessment method. The method comprises the following steps of 1, generating optimal planetary swingby trajectory sample data; 2, building a mapping model of an optimal planetaryswingby trajectory performance index and a target trajectory parameter; and 3, performing assessment on planetary swingby trajectory performance by utilizing the mapping model: according to a trajectory number P of a to-be-assessed detection target of a given task, calculating the optimal planetary swingby trajectory performance index delta V* required for rendezvous of the probe and the detection target by utilizing the mapping model obtained in the step 2, thereby realizing optimal planetary swingby trajectory assessment for the to-be-assessed detection target.

Description

technical field [0001] The invention relates to a method for evaluating the flight orbit of a deep-space probe with planetary leverage, which is suitable for evaluating the flight orbit of a deep-space probe using the technology of planetary leverage, and belongs to the technical field of aerospace. Background technique [0002] When a deep-space probe flies over a planet at close range, it can use the gravitational force of the planet to change the probe's flight trajectory. This technology is called planetary leverage technology. Planetary leverage technology can effectively save the fuel consumption of deep space probes in the process of transferring to target detection, thereby reducing the cost of exploration missions, and is one of the important orbit transfer technologies for deep space probes. At the same time, the introduction of planetary leverage technology has increased the complexity of the orbital dynamics of the probe and increased the difficulty of flight orb...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 尚海滨张阔翔乔栋秦啸韦炳威
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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