Space-ground integration timely response message acquisition method based on microsatellite system

Abstract

The invention provides a space-ground integration timely response information acquisition method based on a microsatellite system. The steps includes (1) building and deploying a composite satellite constellation; (2) completing ground task uploading; (3) completing on-board rapid task planning based on a satellite-borne database and an in-orbit task reconfiguration function; and (4) rapidly obtaining response information. According to the method, the level of response to tasks is substantially improved, and can reach ten minutes at a minute level. The flexibility and customization degree of task execution of a satellite are substantially improved, customization information in an arbitrarily designated task time period can be rapidly obtained, and a task temporary change uploading function that cannot be realized by an existing satellite can also be realized. The supported types of ground applications are more abundant, not only an existing satellite operation control system is supported, but direct task launching and direct data receiving of a ground portable terminal and even a handheld terminal can also be directly supported.

Description

Technical field [0001] The invention relates to a space-ground integration timely response information acquisition method based on a micro-satellite system, and belongs to the field of aerospace technology. Background technique [0002] Satellite remote sensing data has become an important information support method for my country's national economic construction, and has been widely used in land and resources surveys, urban planning, environmental disaster monitoring, marine monitoring, agriculture, forestry and other fields. Many remote sensing application satellites have been launched internationally and a large amount of information data has been obtained. However, with the continuous in-depth development of satellite applications, more applications have put forward higher requirements on satellite systems and application methods, especially for more timely response speed (such as disaster, emergency monitoring), more Application user types (such as mobile terminals, persona...

AI Technical Summary

Problems solved by technology

[0003] (1) Existing satellite systems mostly use a single satellite as the design scheme. Individually realize multi-star cooperation but the number is limited, limited by orbital laws, and the revisit cycle is limited. For the designated target area, it reaches below the sky level (such as hour level to several minutes) level) very difficult

As a result, it is difficult for the current system to achieve observations with high temporal resolution and high spatial resolution at the same time

[0004] (2) Satellite operation and management is complex and has a long cycle, mainly relying on large ground sites to achieve measurement and control, operation control and data downloading

The time period of satellite telemetry and remote control is at the level of days to several days, and the period of task change is long

[0005] (3) The processing cycle of satellite data application is long, and the image products from satellite acquisition to ground generation are complex, and it is difficult to adapt to customized and timely task requirements

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