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Method and apparatus for positioning of satellite image

A satellite image and orbit determination technology, applied in the field of satellite positioning, can solve the problem of low positioning accuracy of satellite remote sensing images

Inactive Publication Date: 2016-09-07
XIAN AEROSPACE TIANHUI DATA TECH CO LTD
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Problems solved by technology

[0004] Embodiments of the present invention provide a satellite image positioning method and device to at least solve the technical problem of low positioning accuracy of satellite remote sensing images without ground control points

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  • Method and apparatus for positioning of satellite image
  • Method and apparatus for positioning of satellite image

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Embodiment Construction

[0011] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0012] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses a method and apparatus for the positioning a satellite image. The method comprises the following steps: acquiring orbit determination and attitude determination data of the satellite image; based on the orbit determination and attitude determination data, using a secondary polynomial model for performing fitting to obtain an initial attitude angle element value; based on the initial attitude angle element value, obtaining angle elements of a connection point, performing calculation in combination with orbit determination parameters of the connection point of the satellite image and a picpointed coordinate to obtain a ground coordinate of the connection point; based on the picpointed coordinate of the connection point, the ground coordinate and the initial attitude angle element value, removing a gross error point in combination with adaptive weight distribution, performing calculation through resection to obtain an initial attitude angle element correction value; based on the initial attitude angle element correction value, correcting the initial attitude angle element value to obtain the corrected high-precision initial attitude angle element. According to the invention, the method addresses the technical problem of inability of meeting requirement for precise positioning of an object by only using the satellite to uploading and downloading data, and realizes high-precise positioning of no ground control points.

Description

technical field [0001] The invention relates to the field of satellite positioning, in particular to a method and device for satellite image positioning. Background technique [0002] The precise positioning of satellite remote sensing images has always relied on ground control points. However, it is usually very difficult to obtain a sufficient number of ground control points. Therefore, when not enough ground control points are obtained, the positioning of satellite remote sensing images is often inaccurate. [0003] For the above problems, no effective solution has been proposed yet. Contents of the invention [0004] Embodiments of the present invention provide a satellite image positioning method and device to at least solve the technical problem of low positioning accuracy of satellite remote sensing images without ground control points. [0005] According to an aspect of an embodiment of the present invention, a satellite image positioning method is provided, inclu...

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Application Information

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IPC IPC(8): G06T7/00
CPCG06T2207/10032
Inventor 陈刚王一靳笑琳赵莹芝折晓宇范晓敏
Owner XIAN AEROSPACE TIANHUI DATA TECH CO LTD
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