Publication

Numerical optimization of multiwavelength UV differential absorption lidar (DIAL) for pollution modeling

Hubert van den Bergh, Valentin Simeonov, Bertrand Calpini
1997
Conference Papers

Abstract

The objective of finding the lidar configuration which best matches airshed pollution modeling guided this study. This study detd. which and how many wavelengths (more than the min. no. of 2 could possibly improve measurement accuracy) are the most suited for airshed modeling. Only Raman cell-based emitting systems were considered. The optimization process was performed via a computer simulation of the DIAL (differential absorption lidar) instrument and of representative atm. situations. This simulation certainly does not account for all crit. issues of a field DIAL O3 measurement, but it intends to point out some general principles of importance when making the choice of operating wavelengths.

Official source

https://infoscience.epfl.ch/entities/publication/68086c45-6e39-46e2-946d-9c1b9f1431e7

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Hubert van den Bergh, Valentin Simeonov, Bertrand Calpini
1997
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/68086c45-6e39-46e2-946d-9c1b9f1431e7

About this result

Related concepts (29)

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Mathematical optimization (alternatively spelled optimisation) or mathematical programming is the selection of a best element, with regard to some criterion, from some set of available alternatives. It is generally divided into two subfields: discrete optimization and continuous optimization. Optimization problems arise in all quantitative disciplines from computer science and engineering to operations research and economics, and the development of solution methods has been of interest in mathematics for centuries.

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Global optimization is a branch of applied mathematics and numerical analysis that attempts to find the global minima or maxima of a function or a set of functions on a given set. It is usually described as a minimization problem because the maximization of the real-valued function is equivalent to the minimization of the function . Given a possibly nonlinear and non-convex continuous function with the global minima and the set of all global minimizers in , the standard minimization problem can be given as that is, finding and a global minimizer in ; where is a (not necessarily convex) compact set defined by inequalities .

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Numerical optimization of multiwavelength UV differential absorption lidar (DIAL) for pollution modeling

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