Smooth and steady pointing maneuvering control method for satellite optical load

Abstract

The invention relates to a smooth and steady pointing maneuvering control method for a satellite optical load. The method comprises the following steps that 1, the attitude of a satellite body is stabilized; 2, a pointing mechanism of the optical load is controlled to enable pointing mechanism pointing orientation to be maneuvered to a target orientation along a set track; 3, an image stabilizing mechanism is controlled to carry out compensation on optical axis shaking, and the target orientation is stably imaged. The smooth and steady pointing maneuvering control method for the satellite optical load has the following advantages that 1, compared with the satellite body, the pointing mechanism is small in mass and size, high in maneuvering speed and little in energy consumption, and the image stabilizing mechanism is driven by a piezoelectric material, is wide in bandwidth and can effectively carry out compensation on control errors of the pointing mechanism and inhibit optical axis shaking; in addition, in the load optical axis maneuvering process, the stability is high, little pointing shaking is generated, the track is smooth, and the target orientation precision and stability are high; smooth and steady pointing maneuvering is provided for the optical load, and the imaging precision during maneuvering is guaranteed.

Description

technical field [0001] The invention belongs to the field of communication, and in particular relates to a method for maneuvering and controlling the steady pointing of satellite optical loads. Background technique [0002] Optical remote sensing satellites are widely used in land survey, environmental monitoring, emergency rescue and disaster relief, astronomical observation and other fields, and have played an important role in national economic construction. [0003] The pointing stability of the optical payload is an important factor affecting the quality of the satellite's ground imaging. If the pointing stability of the optical payload is low, the optical axis shakes seriously, especially during the maneuvering process of the payload, and the images observed by the satellite are easily blurred. The key to realizing satellite high-resolution imaging is to improve the pointing stability of the payload optical axis. [0004] Usually, the pointing control of the optical l...

AI Technical Summary

Problems solved by technology

However, on the one hand, because the mass of the satellite body is usually large, the attitude maneuvering speed is very slow, and it is difficult to realize the fast pointing maneuver control of the load; Satellite load, the maneuvering of the satellite body will seriously affect the pointing stability of the load optical axis, making it difficult to clearly image

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