A multiple-vehicle strategy for near-Earth asteroid capture

Ionescu, Livia; McInnes, Colin R.; Ceriotti, Matteo

doi:10.1016/j.actaastro.2022.07.004

Cited by 3 publications

(3 citation statements)

References 25 publications

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“…MTF (Optical Modulation Transfer Function) reflects the ability of the optical system to transfer various frequencies of the sinusoidal physical modulation system through the spatial frequency function, which is the most comprehensive evaluation index in the evaluation of image quality. The size of a DMD pixel is 7.6 um, and the Nyquist frequency of the optical system can be calculated by Equation (3).…”

Section: Image Quality Evaluation Of the Optical Systemmentioning

confidence: 99%

“…As one of the crucial sectors of modern science and technology, aerospace has a considerable influence on human existence and social development, as well as on enhancing national security and defense capabilities [1,2]. The spacecraft, which is the carrier of space equipment, is required to perform challenging and complicated space missions, such as space rendezvous and docking, deep space exploration, formation flying, and on-orbit assembly [3]. Therefore, achieving precise attitude measurement of the spacecraft is essential to ensuring accurate spacecraft operation and a successful mission.…”

Section: Introductionmentioning

confidence: 99%

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Research on the Detection Method of Projection Stellar Target Simulator

Kang,

Zheng,

Wang

et al. 2023

Photonics

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The projection stellar target simulator is a stellar target simulator in which star points are projected to be imaged on a fixed plane at a fixed distance. Compared with conventional stellar target simulators, the projection stellar target simulator makes star points visible and provides the necessary condition for a semi-physical simulation test of the star camera. In this paper, the projection stellar target simulator optical system with high-quality imaging is designed by combining the projection technology, which breaks the collimated imaging of the conventional stellar target simulator optical system, and offers a new thought to solve the problem of decreasing the calibration accuracy caused by the influence of the coaxiality and other factors in the stellar target simulator calibrating the star camera. Based on the imaging behavior of the star map, this paper proposes a method to realize the automatic detection of a projection stellar target simulator by using CCD and introduces the composition and working principle of the detection system in detail. According to the imaging characteristics of star points, denoising and threshold segmentation of the star map are carried out, and an improved centroid algorithm is proposed to achieve high-precision positioning of the centroid coordinates of the star points. The measurement model and measuring formulas for the angular distance between stars are established. The error sources of the detection system are analyzed and obtain the theoretical error of 9.22″ for this detection system. The result of an actual test experiment shows that the position error of single star is less than 11″, in line with the theoretical analysis of the error, indicating the detection system has high detection precision and meets the requirement for the detection accuracy of the projection stellar target simulator.

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Section: Image Quality Evaluation Of the Optical Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Research on the Detection Method of Projection Stellar Target Simulator

Kang,

Zheng,

Wang

et al. 2023

Photonics

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“…The development of asteroid mines is mainly concerned with transportation issues to maximize the benefits and reduce costs. [2][3][4]To determine the optimal profit of tin ore in inland and offshore mining, Aryo used linear programming, as a result of which this paper chooses linear programming to calculate the maximum mining returns. [5]…”

Section: Introductionmentioning

confidence: 99%

Strive for equitable use of space minerals resources

Shen¹,

Hua²

2023

HSET

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The global world has been paying great attention to the issue of space resources. To measure global equity, according to the dominant criteria, this paper selects resources, economic, opportunity, and policy indicators by using the entropy weight method to calculate the information entropy and weight of each indicator, to measure the degree of equity. In the future exploitation of space resources, in terms of financing and returns, this paper uses the global equity model, and to calculate the maximum mining returns, this paper uses linear programming. The results show that the maximum benefit is $20.01 million per ton.

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A Mathematical Model of Global Equity for Allocating Asteroid Resources Based on Analytic Hierarchy Process

Qian¹

2022

AJCM

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As the Earth's resources are utilized, we are increasingly seeking access to space-based resources. One of the most promising solutions to the problem of resource scarcity is asteroid mining. However, it brings with it the problem of resource allocation. Because of the different levels of development of countries, the way of equal distribution is not reasonable. In this paper, we firstly elaborate and define the abstract global equity in a concrete way, linking global equity with comprehensive national strength, and build a new global equity model on this basis. In this way, we can apply the established model to the distribution of space-based resources or other resources. This paper first establishes the corresponding relation between global equity and comprehensive national power, and then determines several important indexes affecting comprehensive national power according to Klein equation. Further, this paper selected four representative large countries and determined the data of each country in each important index by consulting relevant materials. On this basis, the analytic hierarchy process was used to determine the weight of each country in resource allocation. By comparing the weight index obtained by the model in this paper with the actual resource allocation ratio, we can find that they are in good agreement [1]. Therefore, it can be concluded that when allocating space-based resources or other resources, we can use the global equity model established in this paper to calculate the weight index and allocate resources on this basis to ensure the realization of global equity [2].

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A multiple-vehicle strategy for near-Earth asteroid capture

Cited by 3 publications

References 25 publications

Research on the Detection Method of Projection Stellar Target Simulator

Research on the Detection Method of Projection Stellar Target Simulator

Strive for equitable use of space minerals resources

A Mathematical Model of Global Equity for Allocating Asteroid Resources Based on Analytic Hierarchy Process

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