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Precise processing method and system for rotary large-breadth optical satellite

An optical satellite and processing method technology, which is applied to satellite radio beacon positioning systems, radio wave measurement systems, integrated navigators, etc., and can solve the problems of high degree of nonlinearity of data models and difficulty in accurate processing.

Inactive Publication Date: 2020-08-21
INNOVATION ACAD FOR MICROSATELLITES OF CAS +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method and system for precise processing of rotating large-width optical satellites, so as to solve the problem that the existing satellite imaging process data model is highly nonlinear and difficult to process accurately

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  • Precise processing method and system for rotary large-breadth optical satellite
  • Precise processing method and system for rotary large-breadth optical satellite
  • Precise processing method and system for rotary large-breadth optical satellite

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Embodiment 1

[0064] This embodiment provides a method for precise processing of rotating large-width optical satellites, such as figure 1 As shown, the precise processing method of the rotating large-width optical satellite includes: obtaining the parameters and observation data of the optical camera area array subsystem; The geometric transformation relationship between the focal planes of the array system is obtained to obtain the satellite body and camera focal plane conversion matrix; calculate the rotating optical satellite attitude and orbit control data at the imaging moment; according to the satellite body and camera focal plane conversion matrix and the rotating optical satellite Attitude and orbit control data, constructing a geometric model for precise processing of rotating large-width optical satellites; constructing a rational function fitting model RFM of standard image products according to the precise processing geometric model of rotating large-width optical satellites; ...

Embodiment 2

[0098] This embodiment provides a precise processing system for rotating large-width optical satellites. The precise processing system for rotating large-width optical satellites includes a conversion matrix module, an attitude and orbit control data calculation module, a geometric model building module, a rational function fitting module and coefficient parameters. Calculation module, wherein: the optical camera area array subsystem acquires observation data and sends it to the conversion matrix module; the conversion matrix module constructs a rotating optical satellite body according to the optical camera area array subsystem parameters and observation data The geometric transformation relationship between the focal plane of the optical camera surface array subsystem and the focal plane of the satellite body and the camera are obtained, and sent to the geometric model building module; the attitude and orbit control data calculation module calculates the rotating optical satel...

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Abstract

The invention provides a precise processing method and system for a rotary large-breadth optical satellite. The precise processing method for the rotary large-breadth optical satellite comprises the steps of: acquiring optical camera area array subsystem parameters and observation data; according to the optical camera area array subsystem parameters and the observation data, constructing a geometric transformation relationship between a rotary optical satellite body and an optical camera area array subsystem focal plane to obtain a satellite body and camera focal plane transformation matrix; calculating rotary optical satellite attitude and orbit control data at the imaging moment; constructing a rotary large-breadth optical satellite precise processing geometric model according to the satellite body and camera focal plane transformation matrix and the rotary optical satellite attitude and orbit control data; constructing a rational function fitting model of a standard image product according to the rotary large-breadth optical satellite precise processing geometric model; and carrying out rational polynomial coefficient parameter calculation according to the rational function fitting model of the standard image product.

Description

technical field [0001] The invention relates to the technical field of rotating optical satellites, in particular to a method and system for precise processing of rotating large-width optical satellites. Background technique [0002] The rotating ultra-large and wide-format optical satellite adopts the conical scanning earth observation technology system of the area array camera, realizes super large area observation through the conical scanning method, designs wide-area search imaging and key area encryption imaging mode, and has wide-area, high-resolution, multi-angle imaging, etc. features. The satellite consists of a platform and a payload. The payload includes: an area array optical camera subsystem, a payload data processing subsystem, an auxiliary payload subsystem, and a turntable subsystem. The satellite platform includes: structure and mechanism subsystem, thermal control subsystem, power supply and overall circuit subsystem, measurement and control subsystem, att...

Claims

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Application Information

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IPC IPC(8): G01C21/24G01S19/07
CPCG01C21/24G01S19/07
Inventor 范城城刘国华尹增山胡海鹰刘洋王旭辉田龙飞江新华
Owner INNOVATION ACAD FOR MICROSATELLITES OF CAS
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