Double-satellite and ground-based re-entry target prediction method, device and electronic equipment

Abstract

The invention discloses a method, device and electronic equipment for re-entry target prediction based on double-star and ground-based combination. The method includes: calculating the initial orbit information of the re-entry target based on the ground base; calculating multiple pairs of observations of the re-entry target based on double-star common viewing value; among them, the double star is monitored and adjusted through the ground to make the double star track and observe the reentry trajectory of the reentry target; calculate the position trace sequence of the reentry target according to the multiple pairs of observation values ​​of the reentry target; according to the position of the reentry target The track integral is used to calculate the corrected ballistic coefficient for the dot trace sequence; orbit extrapolation is performed according to the initial orbit information and the corrected ballistic coefficient to the preset orbital height to determine the re-entry moment and landing position of the re-entry target. The invention improves the prediction accuracy of the re-entry time and the landing point position of the re-entry target, realizes the accurate judgment of the large-scale space re-entry event, and reduces the scope of the scattered area of ​​the wreckage.

Description

technical field [0001] The invention belongs to the technical field of aerospace measurement and control, and in particular relates to a re-entry target forecasting method, device and electronic equipment combined with a double star and a ground. Background technique [0002] Massive space targets will not be completely burned during the re-entry process, and 10-40% of the debris still returns to the earth's surface, posing a great threat to life groups, building facilities, and ecological environment on the surface. known as a dangerous reentry target. Maintaining continuous monitoring of dangerous re-entry targets and iteratively forecasting their re-entry events and re-entry locations is an important means to effectively avoid damage and provide support for decision-making by relevant departments. [0003] The main difficulties in target reentry forecasting lie in orbit determination and atmospheric drag modeling, which are limited by the prediction accuracy of current s...

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