Orbit error information generation method and device, electronic equipment and readable medium

A technology of error information and information generation, which is applied in the computer field and can solve problems such as increasing the amount of data processing

Active Publication Date: 2022-01-21
中科星睿科技北京有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] When using SAR to observe the earth, it is often to measure the geographic data in a certain area within a certain period of time. The premise of determining the satellite trajectory error by means of difference is that the errors in a short period of time are consistent by default. However, in

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  • Orbit error information generation method and device, electronic equipment and readable medium
  • Orbit error information generation method and device, electronic equipment and readable medium
  • Orbit error information generation method and device, electronic equipment and readable medium

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Embodiment Construction

[0032] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the disclosure are shown in the drawings, it should be understood that the disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these examples are provided so that the understanding of this disclosure will be thorough and complete. It should be understood that the drawings and embodiments of the present disclosure are for exemplary purposes only, and are not intended to limit the protection scope of the present disclosure.

[0033] It should also be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings. In the case of no conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.

[0034] It should be noted that conc...

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Abstract

The embodiment of the invention discloses an orbit error information generation method and device, electronic equipment and a readable medium. According to one specific embodiment, the method comprises the steps: acquiring a single-view complex image being an image generated after echoes are acquired by a synthetic aperture radar; generating a defocus complex image based on the single-view complex image; performing aperture division on the defocused complex image along the azimuth to generate a sub-image set; generating frequency modulation slope error information corresponding to each sub-image in the sub-image set to obtain a frequency modulation slope error information set; determining satellite acceleration information corresponding to each piece of frequency modulation slope error information in the frequency modulation slope error information set to obtain a satellite acceleration information set; and generating satellite orbit error information according to the satellite acceleration information set. According to the implementation mode, the method does not need to depend on satellite positioning data acquired by a plurality of observation stations to determine the satellite trajectory error. And the data processing amount is greatly reduced.

Description

technical field [0001] The embodiments of the present disclosure relate to the field of computer technology, and in particular to a method, device, electronic device and readable medium for generating track error information. Background technique [0002] The differential interferometric SAR (Synthetic-aperture radar, Synthetic Aperture Radar), which uses navigation satellites as external radiation sources, is a new type of earth observation method that has emerged in recent years. However, since the satellite spatial position is calculated by the ground monitoring system based on the satellite orbit measurement results, there is often a deviation between the satellite spatial position and the actual satellite position, which affects the ground observation results of the synthetic aperture radar. At present, in the aspect of eliminating the satellite trajectory error, the usual method is: through at least two observation stations, simultaneously obtain the positioning data f...

Claims

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Application Information

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IPC IPC(8): G01S13/90G01S7/41G01S19/42
CPCG01S13/9023G01S7/41G01S19/42
Inventor 区东
Owner 中科星睿科技北京有限公司
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