Airborne DIAL-IPDA lidar sensing of carbom dioxide inverse problem solution on basis bionic methods
A.Ya. Sukhanov
V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, 1, Academician Zuev square, Tomsk, 634021, Russia
Keywords: атмосфера, лидар, углекислый газ, парниковый газ, бионический метод, нейронная сеть, генетический алгоритм, atmosphere, lidar, carbon dioxide, greenhouse gas, bionic method, neural net, genetic algorithm
Abstract
Application of bionic methods, such as neural networks and genetic algorithms, to solution of the inverse problem of CO2 relative concentration determination from stratospheric airship signals is considered. The backscattered and reflected from the surface signals at wavelengths near 1572 nm are used for the measurements. The errors of the standard DIAL approach and DIAL-IDPA technology are compared. For the lidar with specification described, the mean error of algorithms developed is lower than 1 ppm. The genetic algorithm used is based on the minimization of the difference between the model signal and the signal received. Application of neural networks is based on their training on the examples of the simulated signals (reflected and scattered) and the altitude distribution of the gas concentration.
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