張良培 鐘燕飛 曹麗琴
摘 要:空天地對地觀測傳感網可以實現網絡環境下多傳感器資源的動態管理、事件智能感知、多平臺系統耦合、按需觀測、觀測融合、數據同化和智能服務,能有效解決當前傳感器觀測數據無法協同觀測,數據處理和信息提取能力不足以及聚焦服務模型缺乏等問題,是智慧地球和一體化對地觀測集成系統需要優先解決的重要研究,是地球陸表監測與決策相應研究的前沿研究之一。該研究圍繞事件感知與多傳感器協同觀測機理、對地觀測傳感網數據同化與信息協同處理理論和任務驅動的時空信息聚焦服務模型三大科學問題展開研究:(1)從系統論、控制論、本體論和服務論相結合的角度,研究觀測系統的自適應動態耦合機理、空天地傳感器優化觀測模型、對地觀測數據在軌處理方法、觀測資源網絡化理論。(2)采用系統科學的理論與方法,建立多時-空-譜數據的一體化融合方法,發展對地觀測傳感網數據與陸面模式的多參數聯合同化方法,充分研究對地觀測傳感網的多源數據智能化處理與分析模型。(3)從對地觀測傳感網系統構架出發,綜合運用本體論、運籌學和控制論的相關方法,研究面向任務的行為規劃模型。通過多學科聯合攻關,系統地揭示從事件感知到聚焦服務的轉化機理,建立從空天地傳感網數據實現陸表監測的科學理論與方法體系,為我國空天地協同對地觀測系統的建立奠定理論與技術基礎。
關鍵詞:一體化 傳感網 協同觀測 任務驅動 聚焦服務
Abstract:Aerospace-borne and ground based integrated earth observation sensor web can achieve dynamic management of multi-sensor, intelligent sense of events,multi-platform systems coupling,on-demand observation ,observation integration,data assimilation and intelligence services under the network environment. It can effectively solve the problem that current sensor data can not be coordinated observated, lack of data processing and information extraction capacity, and the lack of aggregation service model and other issues. It is the first important issues that need to be solved by smart earth and integration of earth observation system, and it is one of the leading subject of Earth's land surface monitoring and decision-making. The project focused on a study of three scientific questions: the event perception and coordination of multi-sensor observation mechanism , data assimilation and information processing theory of earth observation sensor networks, and task-driven collaborative spatial and temporal information service model:(1) From the angle of systems theory, cybernetics, ontology and service,it research on the adaptive dynamic coupling mechanism and optimization of earth observation model , in orbit of Earth observation data processing methods , observing resource network theory.(2) Using the theories and methods of system science , it will establish temporal - spacial -spectral integrated data fusion methods, and develop Earth observation data and sensor networks land surface model of multi-parameter joint assimilation methods,study multi-sensor networks intelligent processing and analysis of source data models of the Earth observation.(3) From the system architecture of earth observation sensor network, it will use the ontology, operations research, cybernetics and related methods to conduct research on task-oriented behavior planning model. With multidisciplinary joint research, it will systematically reveal the transformation mechanism of events perception to service, establish the scientific theory and methodology of achieving monitoring land surface from the temporal - spacial -spectral sensor networks data, lay a foundation of earth observation theory and technical basis for temporal - spacial -spectral collaborative systems in our country.
Key Words:Integrated;Sensor web;Coordination observation;Task-oriented;Service model
閱讀全文鏈接(需實名注冊):http://www.nstrs.cn/xiangxiBG.aspx?id=48311&flag=1