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全文摘要次数: 129 全文下载次数: 123
引用本文:

DOI:

10.11834/jrs.20210323

收稿日期:

2020-07-31

修改日期:

2021-03-22

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基于模糊层次分析法的高分卫星自然资源调查需求满足度评估
郭丁1, 李姗姗2, 陈宗信3,3, 王力1
1.国家国防科技工业局重大专项工程中心;2.中国空间技术研究院;3.电子科技大学 资源与环境学院
摘要:

随着高分辨率对地观测系统建设的发展,高分对地观测数据应用特别是自然资源调查领域的应用成效显著。然而高分对地观测数据应用来源众多,且其应用方式各异,如何对需求其进行规范化和结构化的需求综合及聚类,进而开展卫星观测能力对于用户需求的需求满足度进行评估,是当前高分对地观测系统建设的关键。本研究基于层次分析法开展自然资源遥感调查的需求建模与评价研究,以可见光近红外类型的自然资源遥感调查需求为主要研究对象,提取自然资源遥感监测普遍共有的需求指标和参数构建四元需求模型,然后利用层次分析中的凝聚层次算法对自然资源调查需求进行建模后的需求综合,最后利用模糊层次综合法评估高分卫星对自然资源调查的需求满足度。评估结果显示除R37、R43和R93聚簇需求外,其余聚簇的需求满足度都大于8,需求满足度优良率达到88%,这表明我国高分卫星能较好的满足大部分的自然资源调查需求,但还需要提升在生态评价等领域的对地观测能力。

Assessing the satisfaction evaluation of High Resolution Imaging Satellite to the Nature Resource investigation using Fuzzy Analytic Hierarchy Process
Abstract:

With the development of High-resolution Earth Observation system, its application have been made great achievements, especially for the nature resources investigation. But so many sources and application methods of High-resolution Earth Observation applications lead to many problems. How to integrate and clustering the different demands, and how to evaluate the demand satisfaction is the key to the construction of the High-resolution Earth Observation system. The present paper study the requirements modeling and evaluation of nature resources investigation using analytic hierarchy process. The demand of nature resources investigation for VNIR are selected as the focus of this study. Firstly, the common demands of nature resources investigation are extracted and then demand model are established using Demand for four-element model. Secondly, the condensation level algorithm is used to integrate the nature resources investigation demand for the High-resolution Earth Observation. Thirdly, the demand satisfaction of High-resolution Satellite to the nature resources investigation are evaluated using the fuzzy analytic hierarchy process. The results show that the demand satisfaction of demand cluster except R37, R43 and R93 is greater than 8, and the good ratio of demand satisfaction is 88%. The High-resolution Earth Observation system can meet the need of most of the nature resource investigation, but the ability of ecological assessment for the High-resolution Earth Observation system should be enhanced.

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