Mars dust storm space-time probability extraction and landing safety evaluation method

A technology for safety evaluation and Martian dust storms, applied in the fields of planetary remote sensing and planetary meteorology, can solve problems such as irrationality, ignoring the spatial probability and distribution characteristics of dust storms in the pre-selected landing area, and the high probability of dust storms

Active Publication Date: 2020-03-27
SHANDONG UNIV
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Problems solved by technology

The calculated dust storm probability of the latter is greater than that of the former, which is obviously unreasonable
[0006] (2) Predecessors only considered the time probability of dust storm occurrence, ignoring the spatial probability and distribution characteristics of dust storms in the pre-selected landing area, and the safe landing position and area in t

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  • Mars dust storm space-time probability extraction and landing safety evaluation method
  • Mars dust storm space-time probability extraction and landing safety evaluation method
  • Mars dust storm space-time probability extraction and landing safety evaluation method

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Embodiment Construction

[0041] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0042] 1 Study area and remote sensing images of Mars

[0043] The example of the present invention focuses on the pre-selected landing area (black polygon) of Chris (Chryse) of my country's 2020 Mars exploration mission. The research area is a 1600km circle in the center of the Chris area, and the latitude and longitude range is about (0°-60°S, -60° E-0°), such as figure 1 shown.

[0044] The data source of the example of the present invention is the RGB color remote sensing images covering the surface of Mars, the remote sensing images taken by the Mars Observer camera on the Mars Global Explorer, and the data of 4 Martian years in total.

[0045] 2 Safety Analysis of Mars Landing Mission

[0046] (1) Dust storm identification in the study area

[...

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Abstract

The invention discloses a Mars dust storm space-time probability extraction and landing safety evaluation method, comprising the following steps: 1, identifying a dust storm object based on an RGB color remote sensing image; 2, performing Mars dust storm time probability analysis; 3, performing Mars dust storm spatial probability analysis; and 4, evaluating the safety of the Mars landing area. TheMars dust storm space-time probability extraction and landing safety evaluation method has the advantages of accurately recognizing the Mars dust storm object, and performing area extraction; solvingthe problem that the regularity of repeated dust storms of multiple Mars is ignored in the prior art; solving the problem that dust storm spatial distribution rule characteristics are ignored in theprior art; and selecting proper landing time and a proper safe area for a Mars task.

Description

technical field [0001] The invention relates to the technical fields of planetary remote sensing and planetary meteorology, in particular to a method for extracting the space-time probability of Martian dust storms and evaluating landing safety based on remote sensing images. Background technique [0002] Mars is the closest planet in the solar system to Earth. If there is extraterrestrial life in the solar system, then Mars is the most likely. Remote sensing and on-site detection of Mars have a profound impact on the search for water sources and traces of life. The launch of Mars exploration missions is of great strategic significance to my country's technological, economic and social development. [0003] From the 1960s to the present, countries such as the United States and the former Soviet Union have successively launched multiple Mars landing probes. Limited to the level of engineering technology and science, the early landing probes did not consider relevant factors...

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Application Information

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IPC IPC(8): G06Q10/06G06T7/62G06T7/20
CPCG06Q10/0635G06T7/62G06T7/20G06T2207/10032G06T2207/10024Y02A90/10
Inventor 李勃凌宗成李晨帆姚佩雯张江陈剑曹海军
Owner SHANDONG UNIV
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