Satellite platform having dynamic imaging capability

Abstract

The invention provides a satellite platform having dynamic imaging capability. The satellite platform comprises a load cabin, a platform cabin and a non-contact magnetic suspension mechanism arranged between the load cabin and the platform cabin. The satellite platform has the following innovative design: 1) The performance is excellent: a technical bottleneck it is difficult to measure and control micro-vibration and a large flexibility influence exists is solved thoroughly, fast maneuver and rapid stabilization of the load cabin are implemented, and high stability in the maneuvering process can be ensured. 2) requirements for platform cabin precision are not high, and the load performance is implemented easily: inertia separation of the two cabins is implemented through 'dynamic and static isolation' in space, requirements of controlling the platform cabin to follow precision of the load cabin are not high, which is equivalent to that the rigid load cabin can concentrate on super-agile dynamic imaging tasks, and the precision is implemented easily. 3) Inertia constraint contradiction is eliminated, the scalability is high: through 'dynamic and static isolation non-contact and principal and subordinate cooperation high-precision', a bottleneck problem of inertia requirement contradiction in agility and stability is solved, and the satellite platform not only is suitable for small satellites, but also is suitable for medium-sized or large satellites.

Description

technical field [0001] The invention relates to the structure of an aerospace vehicle, in particular to a satellite platform capable of imaging in motion. Background technique [0002] The flexible accessories such as large solar panels of traditional satellites and the movable parts such as flywheels, gyroscopes, and drive mechanisms are the main reasons that affect the accuracy and stability of satellite load attitude and pointing. With the gradual development of space-to-ground remote sensing missions towards high spatial resolution, high efficiency, and high value, the agile maneuverability of satellites has also become an important technical indicator. Flexible accessories such as solar panels lead to a longer stable convergence time during the agile maneuvering process, which is the main factor affecting the agile maneuvering performance. [0003] At present, the main means of satellites that take into account attitude pointing accuracy, stability, and agility perform...

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to achieve ultra-high stability, ultra-high pointing accuracy, and ultra-high agility of the payload attitude at the same time by using the method of fixed connection between the load and the platform.

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