时间：2017年10月 23日 下午14:00 - 15:00
地点：二教南楼自动化学院524会议室
Optimal Path Planning and Sensor Placement for Mobile Target Detection
This talk describes an applications problem originating from Australia’s Defence Science and Technology Organization, in which a variety of modeling and optimization issues present themselves. For a flying military vehicle, in many scenarios avoiding detection is a key objective. Given a field of heterogeneous detectors such as radars in fixed positions, flying the least probability of detection path through the field of detectors is a fundamental strategy. Most previous optimization methods for this problem have sought to minimize cumulative radar exposure; in contrast, we consider a formulation that directly minimizes the probability of detection. We show how a variational dynamic programming method can be applied to this model to allow one to find a locally optimal path with low computational complexity, and then extend the idea in two directions. First, using homotopy methods, we consider how the vehicle can cope with adjustments to the detector field, resulting from introduction or removal of detectors, or changes of sensitivity. Then we consider the effect of taking Doppler measurements into account. This poses a challenge both in terms of modeling, and an increase in the dimension of the problem.
From the point of view of those seeking to detect the vehicle, the positioning of sensor assets is important. The talk considers how this can be done when the vehicle whose detection is desired optimizes its path. A relaxed version of the positioning problem can be formulated as a convex optimization problem and used to determine optimal or close-to-optimal detector positions.
Brian Anderson 教授简介：
Anderson教授是澳大利亚科学院院士、澳大利亚工程院院士、澳大利亚国立大学杰出教授、澳大利亚国家信息通信技术研究院杰出研究员、英国皇家学会会士、美国工程院外籍院士、IEEE Life Fellow、IFAC Fellow。Anderson教授也是一位杰出的教学、科学研究组织者和领导者。他是澳大利亚国立大学工程学院的首位教授和首位系主任，也是澳洲国家信息通信技术研究院的创建CEO，并一直担任澳大利亚科学技术委员会委员、澳大利亚总理科学顾问等职务。曾任国际自动控制联合会（IFAC）主席、澳大利亚科学院院长，获得过澳大利亚政府和国际学术组织的许多奖励。他长期致力于信号、系统与控制领域的研究，在电路、信号处理与控制领域作出杰出贡献，已出版著作10本，发表学术论文800多篇，是信号、系统与控制领域国际公认的领军人物之一。安德森教授培养的博士生、合作的博士后及学者，其中不少人已经成为国际著名学者。为了表彰Anderson教授对国际自动控制界的贡献，在2016年美国控制会议上，他被授予AACC学会（美国自动控制联合会）的John R. Ragazzini 杰出教育奖，这是极少数的主要工作经历在美国以外的获奖学者。