Abstract
A new two-step approach for locating an emission source is presented. It is based on an analytical diffusion-advection model and on pointwise concentration measurements from a network of stationary spatially distributed electronic noses (EN). In the first step, for each EN the set of points is determined, on which the source can lie, taking only the concentration measurement from the particular EN into account. In the second step, an estimate for the source position is evaluated by intersecting these sets. The new two-step approach overcomes the problem of poor convergence and multiple solutions of iterative algorithms, which minimize the output error of the model. Finally, experimental results are given, that show the capability of the new approach.
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