Multi-dimensional asteroid detection target screening method under multiple constraints

Abstract

The invention discloses a multi-dimensional asteroid detection target screening method under multiple constraints, and belongs to the technical field of aerospace. The method includes the steps that constraints are classified and ordered according to the multi-constraint intensity of a detection task, and a screening order is determined; the detection time range constraint and the telemetry and telecontrol communication constraint of a detector and the earth are determined according to the in-orbit service life of the detector and an observation communication distance supported by a telemetryand telecontrol station, and asteroid targets are primarily screened; the targets are further screened according to the detector imaging constraint and the asteroid physical characteristics; solving is conducted based on the sun-earth-moon system transfer orbit two-point boundary value problem, the target asteroids are further screened according to the speed increment constraint, the number of target asteroids which are screened out is determined, and the corresponding asteroid detection task is completed. According to the method, asteroid detection target screening is achieved with multiple constraints taken into account, and by judging the constraint intensity level and the screening difficulty level, the screening speed and the screening efficiency are improved.

Description

technical field [0001] The invention relates to a multi-dimensional asteroid detection target screening method under multiple constraints, and is especially suitable for a multi-dimensional asteroid detection target screening method starting from the orbit of the solar-earth balance point and satisfying multiple constraints, and belongs to the field of aerospace technology. Background technique [0002] Since the Galileo probe of the National Aeronautics and Space Administration (NASA) carried out asteroid detection activities for the first time in the late 20th century, asteroid detection has become a hotspot in deep space exploration. The target selection of asteroid exploration is the difficulty of carrying out asteroid exploration. How to find the asteroid target that meets the requirements of the exploration mission more quickly, conveniently, accurately and effectively determines the feasibility and value of the mission to a certain extent. [0003] Among the developed...

AI Technical Summary

Problems solved by technology

This method needs to calculate the velocity increment of all near-Earth asteroids, and the target selection takes a lot of time. It does not consider the constraints of measurement and control and mission time in actual missions, and is only applicable to asteroid exploration missions starting from the earth.

In addition, this method requires a large number of incremental calculations of the transfer velocity from low-Earth orbit to the asteroid, which is inefficient and slow

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