A Pose Adjustment Method for Imaging Along Oblique Strips

Abstract

The present invention provides an attitude adjustment method for imaging along oblique strips. The method has good practicability for high-resolution imaging tasks of uneven subplanetary trajectories such as roads, coastlines, and borderlines in imaging along oblique strips. . Aiming at the problem that there is no attitude maneuver adjustment method for imaging along a given oblique strip, the present invention proposes a method of first planning the sliding speed of the photography point along the given oblique strip, and then tracking the sliding of the photography point through the satellite attitude maneuver to perform imaging and The attitude adjustment method with drift angle compensation realizes the imaging along the oblique strip of a given target. The posture adjustment method of the method of the present invention can meet different imaging tasks by changing the sliding speed of the photographic point along the oblique strip, for example, fast push-broom imaging that can realize emergency imaging tasks and slow push-broom imaging that can increase the exposure time to improve imaging quality s Choice.

Description

technical field [0001] The invention relates to the technical field of spacecraft attitude adjustment, in particular to an attitude adjustment method for imaging along a slant strip, which is used for realizing the attitude maneuver adjustment of a camera carrier during imaging along a given slant strip. Background technique [0002] In traditional static imaging, since the push-broom ground speed is mainly caused by orbital motion, its imaging trajectory is considered to be a parallel subplanetary point trajectory, and a section of trajectory is called a strip, and the splicing and imaging of rectangular areas can be realized by strip splicing. However, for high-resolution imaging tasks such as roads, coastlines, and borders that are moving toward uneven subplanetary trajectories, traditional static imaging requires multiple observations to obtain a complete image because the strip must be parallel to the subplanetary trajectory. It cannot meet the needs of real-time acquis...

AI Technical Summary

Problems solved by technology

The imaging mode in motion is described in detail by Huang Qundong in the 12th issue of "Optical Precision Engineering" in 2012, "Image Movement Velocity Calculation when Attitude to Ground Pointing is Changing Imaging". The imaging method during maneuvering cannot realize the attitude planning during the imaging process along the oblique strip, and the attitude adjustment method does not perform imaging bias angle compensation, so it is difficult to guarantee the imaging quality of imaging during maneuvering

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