Method for obtaining high-resolution and large-breadth remote sensing images by utilizing small satellite group

Abstract

Under the existing technical conditions, the high resolutions and large breadths of images obtained by remote sensing satellites are mutually contradictory. The invention discloses a method for obtaining high-resolution and large-breadth remote sensing images by utilizing a small satellite group. According to the method, multiple satellites are grouped to be operated, so that high-resolution and large-breadth earth observation images can be obtained. By adoption of the method, each small satellite has a strict requirement for resolutions of observation instruments and the breadth requirement can be properly broadened; and after orbit injection, all the small satellites can be uniformly distributed on a same orbit plane, and also can be operated in a relatively concentrated way. When an observation task is carried out for each time, a large area is segmented, on and off moments of reasonable observation instruments are distributed for each satellite, lateral tilt angle and pitch angles of satellite attitudes are set, finally, images obtained by all the small satellites are spliced to realize one-time transition of the satellites and obtain high-resolution and large-breadth earth observation images, and if the quantity of the small satellites in the satellite group is more, the breadths of the images are larger. Moreover, by adoption of a satellite group design, the risk of causing the whole satellite task to lose efficacy due to the failure of individual satellites is reduced.

Description

technical field [0001] The invention belongs to the application fields of spacecraft manufacturing and spacecraft engineering, and relates to a method for improving the effect of earth observation images acquired by earth remote sensing satellites. Background technique [0002] One of the main tasks of the earth remote sensing satellite is to obtain earth observation images. It installs optical imaging instruments on the satellite body, moves around the earth through the satellite, controls the switching of the optical imaging instruments, and obtains optical images of different areas on the earth's surface. Two important parameters to evaluate the effect of satellite image acquisition are the resolution of the image and the width of the image. The image resolution is the ground area represented by one pixel of the optical imaging instrument. When the resolution of a satellite is 1m, it It shows that one pixel of this satellite imaging instrument represents an area of ​​1m×1...

AI Technical Summary

Problems solved by technology

However, in the past, satellite manufacturing technology was complex, large in size and high in cost, and this method could not be realized in engineering

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