Double-satellite and ground-based combined reentry target forecasting method and device and electronic equipment

Abstract

The invention discloses a double-satellite and foundation combined reentry target forecasting method and device and electronic equipment. The method comprises the following steps: calculating initial orbit information of a reentry target based on a foundation; calculating a plurality of pairs of observation values of the reentry target based on double-satellite common view; wherein the double satellites are monitored and adjusted through a foundation, so that the double satellites track and observe a reentry trajectory of a reentry target; calculating a position trace point sequence of the reentry target according to the multiple pairs of observation values of the reentry target; performing orbit integration according to the position trace point sequence of the reentry target to calculate a corrected ballistic coefficient; and orbit extrapolation is carried out according to the initial orbit information and the corrected ballistic coefficient until a preset orbit height is reached, so that the reentry moment and the landing position of the reentry target can be determined. The method improves the prediction precision of the reentry time and the drop point position of the reentry target, achieves the accurate discrimination of the large-scale space reentry event, and reduces the range of a wreckage scattering region.

Description

Technical field [0001] The present invention belongs to the field of space measurement and control technology, and more particularly to a double star and foundation combined resembled target prediction method, apparatus and electronic device. Background technique [0002] The large quality space goal is not completely burned during rein, there is still 10 ~ 40% of the wreckage to return to the surface of the earth, threaten the surface life group, architecture, ecological environment, etc., this goal is also Dangerous re-entry goals. Continuous monitoring of hazard re-resend targets, and iterates its re-income events and re-entry location, which is an important means to provide support for the decision-making of relevant departments. [0003] The main difficulty of the goal re-entry forecast is that the track determination and atmospheric resistance modeling are limited to the prediction accuracy of the current semi-empiric atmospheric model. The relative error of the current sho...

AI Technical Summary

Problems solved by technology

[0004] However, the method of only ground-based equipment for re-entry target prediction has a long tracking interval and cannot be continuously monitored, resulting in large prediction errors, especially the final re-entry situation cannot be accurately judged. Covering the entire earth; only space-based equipment for re-entry target prediction method, it is difficult to reasonably determine the monitoring strategy, the effective capture of re-entry targets cannot be achieved, and the monitoring data cannot be directly used for re-entry target prediction

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