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Localisation of a source of hazardous substance dispersion using binary measurements

机译:使用二值测量法定位有害物质分散源

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The problem is to estimate the parameters of a source continuously releasing hazardous material into the atmosphere. The concentration measurements are collected at a number of known locations by a moving binary sensor, characterised by an unknown threshold. The paper formulated a solution in the Bayesian framework, using a dispersion model of Poisson distributed particle encounters in a turbulent flow and assuming the environmental parameters (wind velocity, diffusivity, particle lifetime) are known. The method is implemented using an importance sampling technique and successfully validated with three experimental datasets under different wind conditions. In this context, the estimates of the source release rate are not of practical use, being scaled with an unknown constant related to the binary threshold. Crown Copyright (C) 2016 Published by Elsevier Ltd. All rights reserved.
机译:问题是要估算将有害物质连续释放到大气中的污染源的参数。浓度测量值是通过移动二进制传感器在许多已知位置收集的,其特征是未知阈值。该论文使用湍流中泊松分布的粒子相遇的色散模型,并假设环境参数(风速,扩散率,粒子寿命)是已知的,在贝叶斯框架中制定了一个解决方案。该方法使用重要性采样技术实现,并通过三个实验数据集在不同风况下成功进行了验证。在这种情况下,源释放速率的估计值没有实际用途,而是使用与二进制阈值相关的未知常数进行缩放。 Crown版权所有(C)2016,由Elsevier Ltd.发行。保留所有权利。

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