Dynamic imaging simulation method for high-resolution optical camera of Mars orbiter

A high-resolution, optical camera technology, applied in the field of satellite imaging simulation, can solve the problems of staying, unable to output simulation images, and less simulation of remote sensing satellite imaging results, and achieve the effect of ensuring rigor

Pending Publication Date: 2020-10-09
TONGJI UNIV
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Problems solved by technology

At present, the 3D display platform for extraterrestrial celestial bodies such as the earth, the moon, and Mars has map display software esta

Method used

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  • Dynamic imaging simulation method for high-resolution optical camera of Mars orbiter
  • Dynamic imaging simulation method for high-resolution optical camera of Mars orbiter
  • Dynamic imaging simulation method for high-resolution optical camera of Mars orbiter

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Embodiment

[0153] This simulation method dynamically simulates the push-broom imaging to generate a simulation image for the parameters such as the orbit and attitude that are dynamically introduced. The result is mainly affected by the following factors: geometric factors such as the position and attitude of the satellite, sensor factors such as the number of sensor adjustments and spectral sensitivity, and random noise effects in various imaging and transmission processes.

[0154] 1) Satellite flutter effect

[0155]Satellite flutter refers to the position of the ground target on the imaging device changes due to factors such as attitude adjustment momentum wheels, attitude adjustment thrusters, and external disturbances. When the spacecraft enters the sunshine area from the shadow area, the solar radiation received by the spacecraft The heat flow will suddenly increase, which can easily cause unnecessary vibration of the spacecraft, that is, thermal vibration effect. These flutter e...

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Abstract

The invention relates to a dynamic imaging simulation method for a high-resolution optical camera of a Mars orbiter. The dynamic imaging simulation method comprises the following steps: S1, importingorbital dynamic parameters; S2, performing camera orientation parameter calculation and imaging model establishment; S3, importing a three-dimensional model and a visual position under the position, posture and illumination parameters; S4, generating a dynamic simulation image; s5, generating a multispectral and panchromatic image; and S6, simulating various degradation effects: for the generatedsimulation images, considering the influence of geometric factors, optical device degradation factors and transmission distortion factors on the images, respectively establishing influence models, andsequentially calculating various influenced simulation images according to pixel-level traversal to generate final simulation degradation images. Compared with the prior art, the method considers various degradation effects such as satellite geometric offset, optical device degradation, transmission distortion influence and the like, dynamically generates optical simulation images under various influence factors, and has dynamism, tightness, simulation and transportability.

Description

technical field [0001] The invention relates to satellite imaging simulation technology, in particular to a dynamic imaging simulation method for a high-resolution optical camera of a Mars orbiter. Background technique [0002] Foreign remote sensing satellite imaging simulation technology started relatively early. As early as the middle of the 20th century, the Optical Center of the University of Arizona established the world's first physical simulation system for aerospace remote sensors by arranging artificial light sources and targets in the laboratory, simulating the process of satellites flying in orbit and acquiring images. In the 1990s, due to the rapid development of computer technology, software for simulating remote sensing imaging systems has begun to appear abroad. In 1995, NASA of the United States combined multiple general-purpose software to develop the PATCOD platform that can be used for spacecraft analysis and design. In 2000, the remote sensing imaging ...

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Application Information

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IPC IPC(8): G06T3/00G06T11/00G01S13/90
CPCG06T3/0037G06T11/001G01S13/9021G06T2207/10032
Inventor 刘世杰童小华金雁敏贺钒陈晨刘大永陈鹏谢欢冯永玖王超许雄柳思聪魏超
Owner TONGJI UNIV
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